EP2293880A1 - Fluid discharge head - Google Patents

Fluid discharge head

Info

Publication number
EP2293880A1
EP2293880A1 EP09761388A EP09761388A EP2293880A1 EP 2293880 A1 EP2293880 A1 EP 2293880A1 EP 09761388 A EP09761388 A EP 09761388A EP 09761388 A EP09761388 A EP 09761388A EP 2293880 A1 EP2293880 A1 EP 2293880A1
Authority
EP
European Patent Office
Prior art keywords
fluid discharge
discharge head
head according
valve body
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09761388A
Other languages
German (de)
French (fr)
Other versions
EP2293880B2 (en
EP2293880B1 (en
Inventor
Gisbert Welp
Karl-Heinz Waitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Silgan Dispensing Systems Hemer GmbH
Original Assignee
MeadWestvaco Calmar GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40902219&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2293880(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE102008027598A external-priority patent/DE102008027598A1/en
Priority claimed from DE102008027600A external-priority patent/DE102008027600A1/en
Application filed by MeadWestvaco Calmar GmbH filed Critical MeadWestvaco Calmar GmbH
Publication of EP2293880A1 publication Critical patent/EP2293880A1/en
Application granted granted Critical
Publication of EP2293880B1 publication Critical patent/EP2293880B1/en
Publication of EP2293880B2 publication Critical patent/EP2293880B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B05B11/0067—Lift valves having a valve seat located downstream the valve element (take precedence)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3436—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a plane perpendicular to the outlet axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3468—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with means for controlling the flow of liquid entering or leaving the swirl chamber
    • B05B1/3473—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with means for controlling the flow of liquid entering or leaving the swirl chamber in response to liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0072—A valve member forming part of an outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0075—Two outlet valves being placed in a delivery conduit, one downstream the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1016—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element
    • B05B11/1018—Piston pumps the outlet valve having a valve seat located downstream a movable valve element controlled by a pressure actuated controlling element and the controlling element cooperating with means for opening or closing the inlet valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7835—Valve seating in direction of flow

Definitions

  • the invention relates to a fluid discharge head according to the preamble of claim 1.
  • WO 2007/009617 A1 discloses a fluid discharge head with a discharge nozzle having a discharge opening, which accommodates an inner sleeve.
  • an inner body is arranged which limits an outlet channel and has a connecting member for connection to the counterpart of a discharge device.
  • the inner sleeve has an end face adjacent to the discharge opening to a sealing surface against which a befindlichem on the inner body, the outlet channel occlusive valve plug is spring-biased.
  • a valve is integrated, in which the valve closure is realized by a relative movement when actuated by the user. Such a valve is small in size.
  • the object of the invention is therefore to provide a Fluidaustragkopf, which allows an improved valve closing.
  • a fluid discharge head is provided with a valve closing, in which the remindsaugungsproblematik is eliminated when closing the valve by a pressure relief valve.
  • a flash-like closure immediately after a spray ensures that neither germs nor other contaminants can penetrate through the media outlet opening in the Fluidaustragkopf.
  • the force for opening the valve is applied directly via the conveyed into the discharge head medium.
  • An adjustable media pressure opens the spring loaded valve gate by moving the valve body against a spring force.
  • the conveyed by means of a discharge device in the Fluidaustragkopf medium is directed into a closed and sealed space of the cylinder chamber, from which the media outlet is flowing.
  • the chamber adjusts a quantity of media at the media outlet whose media surface, in conjunction with the media preprint, prevents the penetration of bacteria and contaminants.
  • a small dimensioning of the valve closure is possible.
  • the intermediate valve plate on which the spring acts to press the valve body into the upper valve seat preferably has a sealing strip for sealing the cylinder chamber at the bottom. With sufficient media pressure in the cylinder chamber, the bottom of the chamber forms the intermediate valve plate, the upper valve seat lifts off when caused by the media pressure on the intermediate valve plate is greater than the spring force to be maintained. By the ratio of the projected areas and the increasing pressure within the cylinder chamber can be influenced on the opening and closing behavior.
  • the lower valve seat preferably has the function of a stuffing box seal for the media channel, at which the moving lower end of the valve body rests sealingly.
  • FIG. 1 shows schematically in section a Fluidaustragkopf according to a first embodiment
  • FIG. 2 shows schematically the valve closure of the Fluidaustragkopfes of FIG. 1 in an enlarged view
  • FIG. 3 shows the fluid discharge head according to FIG. 2 with the valve closure open
  • FIG. 5 shows the fluid discharge head according to FIG. 4 with the valve closure open
  • FIG. 6 shows schematically a plan view of the fluid discharge head according to FIG. 4 with a partially removed discharge nozzle
  • FIG. 7 shows schematically in section a fluid discharge head according to a third embodiment
  • Fig. 8 shows schematically the fluid discharge head according to Fig. 7 with possible ways of the pressure drop.
  • FIGS. 1 to 3 show a fluid discharge head 1 for use with a discharge device 2, wherein the discharge device 2 comprises a fluid medium storage, not shown, in which the medium is pressurized or from which the medium via a media pump 3, in particular a Piston pump, is discharged.
  • the discharge device 2 has a counter -A-
  • the discharge device 2 with attached Fluidaustragkopf 1 form a dispenser for particular liquid media.
  • the fluid discharge head 1 and the discharge device 2 are axially movable relative to each other for Austragsbetuschist while shortening the dispenser. Upon release of an actuating force they return by a spring F in the opposite direction to the starting position shown in FIG.
  • the fluid discharge head 1 comprises a discharge nozzle 5 with a discharge opening 6, which is provided here on the front side of the discharge nozzle 5.
  • the discharge nozzle 5 receives an inner sleeve 7, which delimits a media channel 8, which adjoins a discharge section 26 of a media guide 34 in the form of adjoining and within the Fluidaustragkopfes 1 channel sections and / or media spaces.
  • the inner sleeve 7 may further comprise a connecting member 9 for connection to the counterpart 4 of the discharge device 2.
  • the inner sleeve 7 is cup-shaped at its end facing the discharge opening 6 11 for forming a cylinder chamber 12 in connection with the front end 13 of the discharge nozzle 5, which has the discharge opening 6.
  • the inner sleeve 7 receives a discharge opening 6 automatically closing spring-loaded valve body 10.
  • the valve body 10 is formed as a cylindrical piston which is axially displaceable in the cylinder chamber 12 formed by the inner sleeve 7 on the head side.
  • the movable valve body 10 divides the cylinder chamber 12 into upper and lower chamber portions.
  • the upper chamber portion forms a pressure chamber 19, which can be connected to the media channel 8 and opened to the discharge opening 6 and closed.
  • the lower chamber portion serves to receive a spring element, in particular a compression spring 20, for Pressure load of the valve body 10 so that it closes the discharge opening 6 with a biasing force as a spring-loaded valve body 10.
  • an upper valve seat 14 and a lower valve seat 15 is provided, which can serve as a guide bearing for the piston ends 16, 17 at the same time.
  • at least one of the two valve seats 14, 15 serves as a guide bearing.
  • the piston of the valve body 10 has an intermediate valve plate
  • the intermediate valve plate 18 seals the pressure chamber 19 from the upper valve seat 14.
  • the intermediate valve plate 18 also preferably serves to guide the movement of the valve body 10 in the cylinder chamber 12.
  • the intermediate valve plate 18 is preferably formed as a circumferential sealing lip which guides the valve body 10 in the cylinder chamber 12 in its up and down movement.
  • the intermediate valve plate 18 forms a chamber bottom of the pressure chamber 19, which is axially movable relative to the discharge opening 6, by movement of the valve body 10.
  • FIGS. 1 and 2 show a discharge opening 6 closed by the valve body 10.
  • the valve body 10 is flowed through by medium, for which purpose the valve body 10 has a passage channel 21 which connects the media channel 8 with the pressure chamber 19.
  • the passage 21 is guided centrally through the valve body 10.
  • the passage 21 is from a riser section formed, which preferably ends in an annular groove 22 on the outlet side, which passes the passage channel 21 into the pressure chamber 19.
  • the lower valve seat 15 preferably has the function of a stuffing box seal, in which a spout-like widened piston end 17 of the valve body 10 sealingly abuts, namely during a downward and upward movement of the valve body 10th
  • the upper valve seat 14 preferably comprises a slotted sleeve 24 which can guide the upper piston end 16 in the opening and closing movement, on the other hand allows the flow of the discharge port 6 through bushing slots when the upper piston end 16 lifts with a preferably rounded sealing surface 23 and the discharge 6 with respect to the pressure chamber 19 releases.
  • the discharge opening 6 may have one or more openings, depending on which spray pattern or spray pattern is desired.
  • the sleeve 24 may form a swirl chamber.
  • the bushing 24 is preferably formed on the discharge nozzle 5 and designed to be free-standing.
  • the pressure chamber 19 surrounds the discharge opening 6 with a Anströmkessel of fluid, which provides between the intermediate valve plate 18 and the upper valve seat 14 a level of fluid as Anströmreservoir adjacent to the discharge opening 6.
  • the admission pressure is preferably set in a range between 1, 5 and 2.3 bar.
  • Fig. 3 shows the released discharge opening 6.
  • the valve body 10 has carried out a movement away from the discharge opening 6, whereby a lifting of the sealing surface 23 has occurred.
  • the pending in the pressure chamber 19 medium then pushes through the between the top of the valve body 10 and the Chamber 28 formed from the discharge opening 6 at the front end 13 of the discharge nozzle 5.
  • the chamber 28 is preferably a swirl chamber.
  • the discharge rate is not limited to the volume content of the pressure chamber 19, as conveyed and discharged via the passage channel 21 medium to the end of a pump or pressure stroke.
  • the opening characteristic is determined by the gear ratio of the projected areas F1 and F2, where F1 is determined by the valve seat 15 for the lower piston end 17 and its diameter, while F2 is determined by the pressure chamber 19 and the diameter of the intermediate valve plate 18.
  • F3 determines the opening width of the discharge opening 6 in the region of the sealing surface 23 at the upper piston end of the valve body 10.
  • the compression spring 20 is inserted into the cylinder chamber 12 and is supported on the one hand on an underside of the intermediate valve plate 18 and a shoulder 27 of the cylinder chamber 12 adjacent to the valve seat 15th
  • the axial displacement is limited by a spring compression and thereby increasing spring force and / or by a stopper which may be provided on the lower valve seat 15, the valve body 10 is axially displaceable against the spring force of the compression spring 20 to open and close the upper valve seat ,
  • the inner sleeve 7 is fixedly arranged in the discharge nozzle 5, wherein the attachment can be made detachable via a snap connection.
  • the discharge nozzle 5 has finger resting surfaces 25 for manual actuation by applying actuating forces to the counterpart 4.
  • the opening width of the channel 26 is selectable and can via inserts to the desired Flow rate to be adjusted.
  • the channels 26, 8 and 21 are preferably stacked along a central axis.
  • the Austragstutzen 5 here has the shape of a nose olive to be able to be placed as a nose adapter on the counterpart 4.
  • the discharge nozzle 5 may have other outer contours.
  • FIGS. 4 to 6 show a second exemplary embodiment of the fluid discharge head 1, which differs from the first exemplary embodiment described above in that the bushing 24 is formed here on an inserted component 29 which is located between the inner sleeve 7 and the upper end 13 of FIG Austragstutzens 5 is fixed.
  • the component 29 may be provided in a spider-like manner with legs 30, which can serve for positional positioning on the inner sleeve 7.
  • swirl channels 31 can be formed on the socket 29 integrated in the component 29. Via the swirl channels 31, a selectable spray pattern can be imparted to the medium emerging from the chamber 28.
  • the second embodiment differs from the first embodiment in that the media channel 8 connects to a discharge section 26 in the form of a media chamber, which is shut off or secured against a return flow of medium via a valve, in particular a ball valve 32.
  • the fluid discharge head 1 according to the invention can be combined with a multiplicity of different discharge and delivery systems 33.
  • a fluid discharge head 1 which can be tested for leaks on the assembly line.
  • This Fluidaustragkopf allows a review of different ways of pressure drop. A complete leak test is possible.
  • the pot-shaped end 11 forms a cylinder chamber 12 for the valve body 10 with an inner passage 21, and the cup-shaped end 11 has a wall opening 42 between the cylinder chamber 12 and an inner space 43 of the discharge nozzle 5.
  • the pot-shaped end 11 has a wall opening 42 between the cylinder chamber 12 and an inner space 43 of the discharge nozzle 5.
  • Fig. 2 shows the verifiable sealing points and the possible ways of pressure drop V1, V2 and V3 in case of leaks.
  • the fluid discharge head 1 further has at the cup-shaped end 11 an outer cam 44 which serves as a stop with a rib 45 on an inner wall
  • the discharge nozzle 5 which serves for the forwarding of the discharged from the media container fluid, closes with its media channel 8 to a discharge section 26 in the form of a discharge channel of the counterpart 4.
  • the opening width of the channel 26 is selectable and can use inserts on the desired flow rate can be adjusted.
  • the channels 26, 8 and 21 are preferably stacked along a central axis.
  • the Austragstutzen 5 here has the shape of a nose olive to be able to be placed as a nose adapter on the counterpart 4.
  • the discharge nozzle 5 may have other outer contours.

Abstract

The invention relates to a fluid discharge head comprising a discharge connecting piece (5) having a discharge opening (6), an internal sleeve (7) being arranged in said connecting piece and having a medium channel (8) and accommodating a spring-biased valve body (10) that automatically closes the discharge opening (6). The valve body (10) is designed as a cylindrical piston which can be axially displaced in a cylinder compartment (12) defined by the internal sleeve (7), an upper (14) and a lower valve seat (15) for the piston ends (16, 17) being provided, and the valve body (10) having an intermediate valve disk (18) that defines a compartment bottom of a pressure chamber (19) adjoining the medium channel (8). A medium discharge pressure can be adjusted in the pressure chamber to open the upper valve seat (14), said discharge pressure being higher than the spring force keeping the valve body (10) shut.

Description

Fluidaustragkopf Fluidaustragkopf
Die Erfindung betrifft einen Fluidaustragkopf nach dem Oberbegriff des Anspruchs 1.The invention relates to a fluid discharge head according to the preamble of claim 1.
Aus WO 2007/009617 A1 ist ein Fluidaustragkopf mit einem eine Austragöffnung aufweisenden Austragstutzen, der eine Innenhülse aufnimmt, bekannt. In der Innenhülse ist ein Innenkörper angeordnet, der einen Auslasskanal begrenzt und ein Verbindungsglied zur Verbindung mit dem Gegenstück einer Austragvorrichtung aufweist. Die Innenhülse weist stirnseitig benachbart zur Austragöffnung eine Dichtfläche auf, gegen die ein am Innenkörper befindlicher, den Auslasskanal verschließender Ventilstopfen federvorgespannt ist. In den Austragkopf ist damit ein Ventil integriert, bei dem der Ventilverschluss durch eine Relativbewegung bei Betätigung durch den Anwender realisiert wird. Ein solches Ventil ist klein dimensionierbar. Durch die Rücksaugungsproblematik des Fluidaustragkopfes ist jedoch die Sicherung gegen das Eindringen von Keimen und Bakterien nicht ausreichend gegeben. Damit keine Keime oder sonstige Verunreinigungen durch die Austragöffnung in das System eindringen können, kann deshalb die Verwendung oligodynamischer Substanzen erforderlich sein. Die Verwendung solcher oligodynamischen Substanzen bei Einsatz konservierungsmittelfreier Medien ist nachteilig.WO 2007/009617 A1 discloses a fluid discharge head with a discharge nozzle having a discharge opening, which accommodates an inner sleeve. In the inner sleeve, an inner body is arranged which limits an outlet channel and has a connecting member for connection to the counterpart of a discharge device. The inner sleeve has an end face adjacent to the discharge opening to a sealing surface against which a befindlichem on the inner body, the outlet channel occlusive valve plug is spring-biased. In the discharge head thus a valve is integrated, in which the valve closure is realized by a relative movement when actuated by the user. Such a valve is small in size. Due to the Rücksaugungsproblematik the fluid discharge head, however, the protection against the ingress of germs and bacteria is not sufficiently given. Thus, no germs or other contaminants can penetrate through the discharge opening in the system, therefore, the use of oligodynamic substances may be required. The Use of such oligodynamic substances when using preservative-free media is disadvantageous.
Aufgabe der Erfindung ist es daher, einen Fluidaustragkopf zu schaffen, der einen verbesserten Ventilschluss erlaubt.The object of the invention is therefore to provide a Fluidaustragkopf, which allows an improved valve closing.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.
Hierdurch wird ein Fluidaustragkopf mit einem Ventilschluss geschaffen, bei dem die Rücksaugungsproblematik beim Schließen des Ventils durch ein Überdruckventil eliminiert wird. Ein blitzartiges Verschließen direkt nach einem Sprühstoß gewährleistet, dass weder Keime noch sonstige Verunreinigungen durch die Medienaustrittsöffnung in den Fluidaustragkopf eindringen können. Die Kraft zur Öffnung des Ventils wird über das in den Austragkopf geförderte Medium direkt aufgebracht. Ein einstellbarer Mediendruck öffnet den federbelasteten Ventil- verschluss durch Bewegen des Ventilkörpers gegen eine Federkraft. Das mittels einer Austrag Vorrichtung in den Fluidaustragkopf geförderte Medium wird dabei in einen geschlossenen und abgedichteten Raum der Zylinderkammer geleitet, aus der der Medienauslass angeströmt wird. Die Kammer stellt eine Medienmenge am Medienauslass an, deren Medienoberfläche in Verbindung mit dem Medienvordruck dem Eindringen von Bakterien und Verunreinigungen entgegensteht. Eine kleine Dimensionierung des Ventilverschlusses ist möglich.As a result, a fluid discharge head is provided with a valve closing, in which the Rücksaugungsproblematik is eliminated when closing the valve by a pressure relief valve. A flash-like closure immediately after a spray ensures that neither germs nor other contaminants can penetrate through the media outlet opening in the Fluidaustragkopf. The force for opening the valve is applied directly via the conveyed into the discharge head medium. An adjustable media pressure opens the spring loaded valve gate by moving the valve body against a spring force. The conveyed by means of a discharge device in the Fluidaustragkopf medium is directed into a closed and sealed space of the cylinder chamber, from which the media outlet is flowing. The chamber adjusts a quantity of media at the media outlet whose media surface, in conjunction with the media preprint, prevents the penetration of bacteria and contaminants. A small dimensioning of the valve closure is possible.
Der Zwischenventilteller, auf den die Feder wirkt, um den Ventilkörper in den oberen Ventilsitz zu pressen, besitzt vorzugsweise eine Dichtleiste zum bodenseitigen Abdichten der Zylinderkammer. Bei hinreichendem Mediendruck in der Zylinderkammer, dessen Kammerboden den Zwischenventilteller bildet, hebt der obere Ventilsitz ab, wenn die durch den Medienvordruck hervorgerufene Kraft auf den Zwischenventilteller größer ist als die zuhaltende Federkraft. Durch das Übersetzungsverhältnis der projizierten Flächen und des ansteigenden Drucks innerhalb der Zylinderkammer kann auf das öffnungs- und Schließverhalten Einfluss genommen werden. Der untere Ventilsitz hat vorzugsweise die Funktion einer Stopfbuchsendichtung für den Medienkanal, an der sich das bewegte untere Ende des Ventilkörpers abdichtend anlegt.The intermediate valve plate on which the spring acts to press the valve body into the upper valve seat preferably has a sealing strip for sealing the cylinder chamber at the bottom. With sufficient media pressure in the cylinder chamber, the bottom of the chamber forms the intermediate valve plate, the upper valve seat lifts off when caused by the media pressure on the intermediate valve plate is greater than the spring force to be maintained. By the ratio of the projected areas and the increasing pressure within the cylinder chamber can be influenced on the opening and closing behavior. The lower valve seat preferably has the function of a stuffing box seal for the media channel, at which the moving lower end of the valve body rests sealingly.
Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen.Further embodiments of the invention are described in the following description and the dependent claims.
Die Erfindung wird nachstehend anhand der in den beigefügten Abbildungen dargestellten Ausführungsbeispiele näher erläutert.The invention will be explained in more detail with reference to the embodiments illustrated in the accompanying drawings.
Fig. 1 zeigt schematisch im Schnitt einen Fluidaustragkopf gemäß einem ersten Ausführungsbeispiel,1 shows schematically in section a Fluidaustragkopf according to a first embodiment,
Fig. 2 zeigt schematisch den Ventilverschluss des Fluidaustragkopfes gemäß Fig. 1 in vergrößerter Darstellung,2 shows schematically the valve closure of the Fluidaustragkopfes of FIG. 1 in an enlarged view,
Fig. 3 zeigt den Fluidaustragkopf gemäß Fig. 2 mit geöffnetem Ventilverschluss,3 shows the fluid discharge head according to FIG. 2 with the valve closure open, FIG.
Fig. 4 zeigt schematisch im Schnitt einen Fluidaustragkopf gemäß einem zweiten Ausführungsbeispiel,4 shows schematically in section a fluid discharge head according to a second embodiment,
Fig. 5 zeigt den Fluidaustragkopf gemäß Fig. 4 mit geöffnetem Ventilverschluss,5 shows the fluid discharge head according to FIG. 4 with the valve closure open, FIG.
Fig. 6 zeigt schematisch eine Draufsicht des Fluidaustragkopfes gemäß Fig. 4 mit teilweise entferntem Austragstutzen,6 shows schematically a plan view of the fluid discharge head according to FIG. 4 with a partially removed discharge nozzle, FIG.
Fig. 7 zeigt schematisch im Schnitt einen Fluidaustragkopf gemäß einem dritten Ausführungsbeispiel,7 shows schematically in section a fluid discharge head according to a third embodiment,
Fig. 8 zeigt schematisch den Fluidaustragkopf gemäß Fig. 7 mit möglichen Wegen des Druckabfalls.Fig. 8 shows schematically the fluid discharge head according to Fig. 7 with possible ways of the pressure drop.
Fig. 1 bis Fig. 3 zeigen einen Fluidaustragkopf 1 zur Verwendung mit einer Austragvorrichtung 2, wobei die Austragvorrichtung 2 einen nicht dargestellten Mediumspeicher für Fluid umfasst, in dem das Medium unter Druck gestellt ist oder aus dem das Medium über eine Medienpumpe 3, insbesondere eine Schubkolbenpumpe, ausgetragen wird. Die Austragvorrichtung 2 weist ein Gegen- -A-FIGS. 1 to 3 show a fluid discharge head 1 for use with a discharge device 2, wherein the discharge device 2 comprises a fluid medium storage, not shown, in which the medium is pressurized or from which the medium via a media pump 3, in particular a Piston pump, is discharged. The discharge device 2 has a counter -A-
stück 4 auf, an dem der Fluidaustragkopf 1 anbringbar ist. Die Austragvorrichtung 2 mit aufgesetztem Fluidaustragkopf 1 bilden einen Spender für insbesondere flüssige Medien.piece 4, on which the Fluidaustragkopf 1 can be attached. The discharge device 2 with attached Fluidaustragkopf 1 form a dispenser for particular liquid media.
Der Fluidaustragkopf 1 und die Austragvorrichtung 2 sind zur Austragsbetätigung unter Verkürzung des Spenders axial gegeneinander bewegbar. Bei Freigabe einer Betätigungskraft kehren sie durch eine Feder F in entgegengesetzter Richtung zur Ausgangsstellung gemäß Fig. 1 zurück.The fluid discharge head 1 and the discharge device 2 are axially movable relative to each other for Austragsbetätigung while shortening the dispenser. Upon release of an actuating force they return by a spring F in the opposite direction to the starting position shown in FIG.
Der Fluidaustragkopf 1 umfasst einen Austragstutzen 5 mit einer Austragöffnung 6, die hier stirnseitig am Austragstutzen 5 vorgesehen ist. Der Austragstutzen 5 nimmt eine Innenhülse 7 auf, die einen Medienkanal 8 begrenzt, der an einen Austragabschnitt 26 einer Medienführung 34 in Form von aneinander anschließenden und innerhalb des Fluidaustragkopfes 1 liegenden Kanalabschnitten und/oder Medienräumen anschließt.The fluid discharge head 1 comprises a discharge nozzle 5 with a discharge opening 6, which is provided here on the front side of the discharge nozzle 5. The discharge nozzle 5 receives an inner sleeve 7, which delimits a media channel 8, which adjoins a discharge section 26 of a media guide 34 in the form of adjoining and within the Fluidaustragkopfes 1 channel sections and / or media spaces.
Die Innenhülse 7 kann ferner ein Verbindungsglied 9 zur Verbindung mit dem Gegenstück 4 der Austragvorrichtung 2 aufweisen. Die Innenhülse 7 ist an ihrem der Austragöffnung 6 zugewandten Ende 11 topfförmig ausgebildet zur Ausbildung einer Zylinderkammer 12 in Verbindung mit dem stirnseitigen Ende 13 des Austragstutzens 5, das die Austragöffnung 6 aufweist. Zum Verschließen der Austragöffnung 6 nimmt die Innenhülse 7 einen die Austragöffnung 6 selbsttätig schließenden federbelasteten Ventilkörper 10 auf.The inner sleeve 7 may further comprise a connecting member 9 for connection to the counterpart 4 of the discharge device 2. The inner sleeve 7 is cup-shaped at its end facing the discharge opening 6 11 for forming a cylinder chamber 12 in connection with the front end 13 of the discharge nozzle 5, which has the discharge opening 6. For closing the discharge opening 6, the inner sleeve 7 receives a discharge opening 6 automatically closing spring-loaded valve body 10.
Der Ventilkörper 10 ist als zylindrischer Kolben ausgebildet, der in der von der Innenhülse 7 kopfseitig gebildeten Zylinderkammer 12 axial verschiebbar ist. Der bewegbare Ventilkörper 10 unterteilt die Zylinderkammer 12 in einen oberen und einen unteren Kammerabschnitt. Der obere Kammerabschnitt bildet eine Druckkammer 19, die an den Medienkanal 8 angeschlossen und zur Austragöffnung 6 hin geöffnet und geschlossen werden kann. Der untere Kammerabschnitt dient zur Aufnahme eines Federelementes, insbesondere einer Druckfeder 20, zur Druckbelastung des Ventilkörpers 10, damit dieser mit einer Vorspannkraft als federbelasteter Ventilkörper 10 die Austragsöffnung 6 verschließt.The valve body 10 is formed as a cylindrical piston which is axially displaceable in the cylinder chamber 12 formed by the inner sleeve 7 on the head side. The movable valve body 10 divides the cylinder chamber 12 into upper and lower chamber portions. The upper chamber portion forms a pressure chamber 19, which can be connected to the media channel 8 and opened to the discharge opening 6 and closed. The lower chamber portion serves to receive a spring element, in particular a compression spring 20, for Pressure load of the valve body 10 so that it closes the discharge opening 6 with a biasing force as a spring-loaded valve body 10.
Für den Ventilkörper 10 ist ein oberer Ventilsitz 14 und ein unterer Ventilsitz 15 vorgesehen, die zugleich als Führungslager für die Kolbenenden 16, 17 dienen können. Vorzugsweise dient mindestens einer der beiden Ventilsitze 14, 15 als Führungslager. Der Kolben des Ventilkörpers 10 weist einen ZwischenventiltellerFor the valve body 10, an upper valve seat 14 and a lower valve seat 15 is provided, which can serve as a guide bearing for the piston ends 16, 17 at the same time. Preferably, at least one of the two valve seats 14, 15 serves as a guide bearing. The piston of the valve body 10 has an intermediate valve plate
18 auf, der einen Kammerboden der an den Medienkanal 8 angeschlossenen Druckkammer 19 bildet. Der Zwischenventilteller 18 dichtet die Druckkammer 19 zum oberen Ventilsitz 14 ab. Der Zwischenventilteller 18 dient ferner vorzugsweise zur Führung der Bewegung des Ventilkörpers 10 in der Zylinderkammer 12. Der Zwischenventilteller 18 ist vorzugsweise als umlaufende Dichtungslippe ausgebildet, die den Ventilkörper 10 in der Zylinderkammer 12 bei seiner Auf- und Abwärtsbewegung führt. Der Zwischenventilteller 18 bildet einen Kammerboden der Druckkammer 19, der gegenüber der Austragöffnung 6 axial bewegbar ist, und zwar durch Bewegung des Ventilkörpers 10. Der Volumeninhalt der Druckkammer18, which forms a chamber bottom of the pressure channel 19 connected to the media channel 8. The intermediate valve plate 18 seals the pressure chamber 19 from the upper valve seat 14. The intermediate valve plate 18 also preferably serves to guide the movement of the valve body 10 in the cylinder chamber 12. The intermediate valve plate 18 is preferably formed as a circumferential sealing lip which guides the valve body 10 in the cylinder chamber 12 in its up and down movement. The intermediate valve plate 18 forms a chamber bottom of the pressure chamber 19, which is axially movable relative to the discharge opening 6, by movement of the valve body 10. The volume content of the pressure chamber
19 variiert folglich, wobei die Volumenvergrößerung bei Öffnung der Austragöffnung 6 durch den Mediumdruck im Durchlasskanal 21 ausgefüllt wird, so dass keine Keime eindringen können. Die Verkleinerung des Volumeninhalts der Druckkammer 19 beim Schließen der Austragöffnung 6 bewirkt einen Mediumrestschub, der das Eindringen von Keimen verhindert.19 thus varies, wherein the increase in volume when opening the discharge opening 6 is filled by the medium pressure in the passage 21, so that no germs can penetrate. The reduction of the volume content of the pressure chamber 19 when closing the discharge opening 6 causes a medium residual thrust, which prevents the ingress of germs.
Zum öffnen des oberen Ventilsitzes 14 ist in der Druckkammer 19 ein Medien- austragdruck einstellbar, der höher ist als eine den Ventilkörper 10 zuhaltende Federkraft der Druckfeder 20. Die Fig. 1 und Fig. 2 zeigen eine durch den Ventilkörper 10 geschlossene Austragöffnung 6.To open the upper valve seat 14, a media discharge pressure can be set in the pressure chamber 19, which is higher than a spring force of the compression spring 20 to hold the valve body 10. FIGS. 1 and 2 show a discharge opening 6 closed by the valve body 10.
Der Ventilkörper 10 wird von Medium durchströmt, wozu der Ventilkörper 10 einen Durchlasskanal 21 aufweist, der den Medienkanal 8 mit der Druckkammer 19 verbindet. Vorzugsweise ist der Durchlasskanal 21 zentrisch durch den Ventilkörper 10 geführt. Der Durchlasskanal 21 wird von einem Steigrohrabschnitt gebildet, der auslassseitig vorzugsweise in einer Ringnut 22 endet, die den Durchlasskanal 21 in die Druckkammer 19 überleitet.The valve body 10 is flowed through by medium, for which purpose the valve body 10 has a passage channel 21 which connects the media channel 8 with the pressure chamber 19. Preferably, the passage 21 is guided centrally through the valve body 10. The passage 21 is from a riser section formed, which preferably ends in an annular groove 22 on the outlet side, which passes the passage channel 21 into the pressure chamber 19.
Der untere Ventilsitz 15 hat vorzugsweise die Funktion einer Stopfbuchsendichtung, in der ein tüllenartig verbreitertes Kolbenende 17 des Ventilkörpers 10 abdichtend anliegt, und zwar bei einer Abwärts- und Aufwärtsbewegung des Ventilkörpers 10.The lower valve seat 15 preferably has the function of a stuffing box seal, in which a spout-like widened piston end 17 of the valve body 10 sealingly abuts, namely during a downward and upward movement of the valve body 10th
Der obere Ventilsitz 14 umfasst vorzugsweise eine geschlitzte Buchse 24, die das obere Kolbenende 16 bei der Öffnungs- und Schließbewegung führen kann, andererseits die Anströmung der Austragöffnung 6 durch Buchsenschlitze erlaubt, wenn das obere Kolbenende 16 mit einer vorzugsweise gerundeten Dichtfläche 23 abhebt und die Austragöffnung 6 gegenüber der Druckkammer 19 freigibt. Die Austragöffnung 6 kann eine oder mehrere Öffnungen aufweisen, je nachdem, welches Sprühbild oder Strahlbild erwünscht ist. Die Buchse 24 kann eine Drallkammer ausbilden.The upper valve seat 14 preferably comprises a slotted sleeve 24 which can guide the upper piston end 16 in the opening and closing movement, on the other hand allows the flow of the discharge port 6 through bushing slots when the upper piston end 16 lifts with a preferably rounded sealing surface 23 and the discharge 6 with respect to the pressure chamber 19 releases. The discharge opening 6 may have one or more openings, depending on which spray pattern or spray pattern is desired. The sleeve 24 may form a swirl chamber.
Die Buchse 24 ist vorzugsweise an dem Austragstutzen 5 ausgebildet und dazu freistehend ausgebildet. Die Druckkammer 19 umgibt die Austragöffnung 6 mit einem Anströmkessel an Fluid, der zwischen dem Zwischenventilteller 18 und dem oberen Ventilsitz 14 eine Standhöhe an Fluid als Anströmreservoir benachbart zur Austragöffnung 6 bereitstellt. Vor dem Abheben des Ventilkörpers 10 von dem oberen Ventilsitz 14 steht das Medium mit einem hohen Anfangsdruck an. Dieser Vordruck in der Druckkammer 19 ist höher als der Umgebungsdruck, so dass beim Freigeben der Austragöffnung 6 das anstehende Medium unmittelbar austritt. Der Vordruck wird vorzugsweise in einem Bereich zwischen 1 ,5 und 2,3 bar eingestellt.The bushing 24 is preferably formed on the discharge nozzle 5 and designed to be free-standing. The pressure chamber 19 surrounds the discharge opening 6 with a Anströmkessel of fluid, which provides between the intermediate valve plate 18 and the upper valve seat 14 a level of fluid as Anströmreservoir adjacent to the discharge opening 6. Before lifting the valve body 10 from the upper valve seat 14, the medium is at a high initial pressure. This form in the pressure chamber 19 is higher than the ambient pressure, so that when releasing the discharge opening 6, the pending medium exits directly. The admission pressure is preferably set in a range between 1, 5 and 2.3 bar.
Fig. 3 zeigt die freigegebene Austragöffnung 6. Der Ventilkörper 10 hat dazu eine Bewegung weg von der Austragöffnung 6 durchgeführt, wodurch ein Abheben der Dichtfläche 23 eingetreten ist. Das in der Druckkammer 19 anstehende Medium drückt dann durch die zwischen dem Kopfende des Ventilkörpers 10 und dem stirnseitigen Ende 13 des Austragstutzens 5 gebildeten Kammer 28 aus der Austragöffnung 6. Die Kammer 28 ist vorzugsweise eine Drallkammer. Die Austragmenge ist dabei nicht auf den Volumeninhalt der Druckkammer 19 beschränkt, da über den Durchlasskanal 21 Medium bis zum Ende eines Pumpenoder Druckhubs gefördert und ausgetragen wird.Fig. 3 shows the released discharge opening 6. The valve body 10 has carried out a movement away from the discharge opening 6, whereby a lifting of the sealing surface 23 has occurred. The pending in the pressure chamber 19 medium then pushes through the between the top of the valve body 10 and the Chamber 28 formed from the discharge opening 6 at the front end 13 of the discharge nozzle 5. The chamber 28 is preferably a swirl chamber. The discharge rate is not limited to the volume content of the pressure chamber 19, as conveyed and discharged via the passage channel 21 medium to the end of a pump or pressure stroke.
Die Öffnungscharakteristik wird bestimmt durch das Übersetzungsverhältnis der projizierten Flächen F1 und F2, wobei F1 durch den Ventilsitz 15 für das untere Kolbenende 17 und dessen Durchmesser bestimmt wird, während F2 durch die Druckkammer 19 und den Durchmesser des Zwischenventiltellers 18 bestimmt wird. F3 bestimmt die öffnungsweite der Austragöffnung 6 im Bereich der Dichtfläche 23 am oberen Kolbenende des Ventilkörpers 10.The opening characteristic is determined by the gear ratio of the projected areas F1 and F2, where F1 is determined by the valve seat 15 for the lower piston end 17 and its diameter, while F2 is determined by the pressure chamber 19 and the diameter of the intermediate valve plate 18. F3 determines the opening width of the discharge opening 6 in the region of the sealing surface 23 at the upper piston end of the valve body 10.
Die Druckfeder 20 ist eingesetzt in die Zylinderkammer 12 und stützt sich ab einerseits an einer Unterseite des Zwischenventiltellers 18 und einer Schulter 27 der Zylinderkammer 12 benachbart zum Ventilsitz 15.The compression spring 20 is inserted into the cylinder chamber 12 and is supported on the one hand on an underside of the intermediate valve plate 18 and a shoulder 27 of the cylinder chamber 12 adjacent to the valve seat 15th
Der Ventilkörper 10 ist entgegen der Federkraft der Druckfeder 20 axial verschiebbar zum Öffnen und Schließen des oberen Ventilsitzes 14. Der axiale Hub ist begrenzbar durch eine Federkompression und der dadurch ansteigenden Federkraft und/oder durch einen Anschlag, der an dem unteren Ventilsitz 15 vorgesehen sein kann.The axial displacement is limited by a spring compression and thereby increasing spring force and / or by a stopper which may be provided on the lower valve seat 15, the valve body 10 is axially displaceable against the spring force of the compression spring 20 to open and close the upper valve seat ,
Die Innenhülse 7 sitzt fest angeordnet in dem Austragstutzen 5, wobei die Befestigung lösbar über eine Schnappverbindung erfolgen kann.The inner sleeve 7 is fixedly arranged in the discharge nozzle 5, wherein the attachment can be made detachable via a snap connection.
Der Austragstutzen 5 weist für eine manuelle Betätigung unter Aufbringung von Betätigungskräften auf das Gegenstück 4 Fingerauflageflächen 25 auf. Der Austragstutzen 5, der zur Weiterleitung des aus dem Medienbehälter ausgetragenen Fluids dient, schließt mit seinem Medienkanal 8 an einen Austragabschnitt 26 in Form eines Austragkanals des Gegenstücks 4 an. Die öffnungsweite des Kanals 26 ist wählbar und kann über Einsatzstücke an die gewünschte Fördermenge angepasst werden. Die Kanäle 26, 8 und 21 sind vorzugsweise entlang einer zentralen Achse übereinandergesetzt.The discharge nozzle 5 has finger resting surfaces 25 for manual actuation by applying actuating forces to the counterpart 4. The discharge nozzle 5, which serves for the forwarding of the discharged from the media container fluid, closes with its media channel 8 to a discharge section 26 in the form of a discharge channel of the counterpart 4. The opening width of the channel 26 is selectable and can via inserts to the desired Flow rate to be adjusted. The channels 26, 8 and 21 are preferably stacked along a central axis.
Der Austragstutzen 5 besitzt hier die Form einer Nasenolive, um als Nasenadapter auf das Gegenstück 4 aufgesetzt werden zu können. Für andere Anwendungszwecke kann der Austragstutzen 5 andere Außenkonturen besitzen.The Austragstutzen 5 here has the shape of a nose olive to be able to be placed as a nose adapter on the counterpart 4. For other applications, the discharge nozzle 5 may have other outer contours.
Fig. 4 bis Fig. 6 zeigen ein zweites Ausführungsbeispiel des Fluidaustragkopfes 1 , das sich von dem zuvor beschriebenen ersten Ausführungsbeispiel dadurch unterscheidet, dass die Buchse 24 hier an einem eingesetzten Bauteil 29 ausgebildet ist, das zwischen der Innenhülse 7 und dem oberen Ende 13 des Austragstutzens 5 fixiert ist. Dazu kann das Bauteil 29 spinnenartig mit Beinen 30 versehen sein, die zur Lagepositionierung an der Innenhülse 7 dienen können. Ferner können an der in das Bauteil 29 integrierten Buchse 24 Drallkanäle 31 ausgebildet sein. Über die Drallkanäle 31 kann dem aus der Kammer 28 austretenden Medium ein wählbares Sprühbild verliehen werden.FIGS. 4 to 6 show a second exemplary embodiment of the fluid discharge head 1, which differs from the first exemplary embodiment described above in that the bushing 24 is formed here on an inserted component 29 which is located between the inner sleeve 7 and the upper end 13 of FIG Austragstutzens 5 is fixed. For this purpose, the component 29 may be provided in a spider-like manner with legs 30, which can serve for positional positioning on the inner sleeve 7. Furthermore, swirl channels 31 can be formed on the socket 29 integrated in the component 29. Via the swirl channels 31, a selectable spray pattern can be imparted to the medium emerging from the chamber 28.
Weiterhin unterscheidet sich das zweite Ausführungsbeispiel von dem ersten Ausführungsbeispiel dadurch, dass der Medienkanal 8 an einen Austragabschnitt 26 in Form einer Medienkammer anschließt, die über ein Ventil, insbesondere ein Kugelventil 32, gegenüber einem Rückfluss von Medium abgesperrt bzw. gesichert ist. Der erfindungsgemäße Fluidaustragkopf 1 ist dabei mit einer Vielzahl verschiedener Austrag- und Fördersysteme 33 kombinierbar.Furthermore, the second embodiment differs from the first embodiment in that the media channel 8 connects to a discharge section 26 in the form of a media chamber, which is shut off or secured against a return flow of medium via a valve, in particular a ball valve 32. The fluid discharge head 1 according to the invention can be combined with a multiplicity of different discharge and delivery systems 33.
Im Übrigen gelten die vorstehenden Ausführungen zum ersten Ausführungsbeispiel für das zweite Ausführungsbeispiel entsprechend.Incidentally, the above statements apply to the first embodiment of the second embodiment accordingly.
Gemäß einem dritten in Fig. 7 und Fig. 8 dargestellten Ausführungsbeispiel ist ein Fluidaustragkopf 1 vorgesehen, der auf der Montagelinie auf Undichtigkeiten getestet werden kann. Dieser Fluidaustragkopf ermöglicht eine Überprüfung verschiedener Wege des Druckabfalls. Eine vollständige Dichtigkeitsprüfung ist dadurch möglich. Hierzu ist vorgesehen ein Fluidaustragkopf mit einem eine Austragöffnung 6 aufweisenden Austragstutzen 5, in dem eine Innenhülse 7 angeordnet ist, die einen Medienkanal 8 aufweist und einen die Austragöffnung 6 selbsttätig schließenden federbelasteten Ventilkörper 10 aufnimmt, der als axial verschiebbarer Kolben mit einem oberen 14 und einem unterem Ventilsitz 15 für die Kolbenenden 16, 17 in einem topfförmigen Ende der Innenhülse 7 angeordnet ist. Das topfförmige Ende 11 bildet eine Zylinderkammer 12 für den Ventilkörper 10 mit einem inneren Durchlasskanal 21 , und das topfförmige Ende 11 weist eine Wandöffnung 42 zwischen der Zylinderkammer 12 und einem Innenraum 43 des Austragstutzens 5 auf.According to a third embodiment shown in FIGS. 7 and 8, a fluid discharge head 1 is provided which can be tested for leaks on the assembly line. This Fluidaustragkopf allows a review of different ways of pressure drop. A complete leak test is possible. For this purpose, a fluid discharge head with a discharge opening 6 having discharge port 5, in which an inner sleeve 7 is arranged, which has a media channel 8 and the discharge opening 6 automatically closing spring-loaded valve body 10 receives, as axially displaceable piston with an upper 14 and a lower valve seat 15 is arranged for the piston ends 16, 17 in a cup-shaped end of the inner sleeve 7. The pot-shaped end 11 forms a cylinder chamber 12 for the valve body 10 with an inner passage 21, and the cup-shaped end 11 has a wall opening 42 between the cylinder chamber 12 and an inner space 43 of the discharge nozzle 5.
Das topfförmige Ende 11 besitzt eine Wandöffnung 42 zwischen der Zylinderkammer 12 und einem Innenraum 43 des Austragstutzens 5. Fig. 2 zeigt die überprüfbaren Dichtstellen und die möglichen Wege des Druckabfalls V1 , V2 und V3 bei Undichtigkeiten. Dazu wird ein Luft-Druck P in Richtung der MedienführungThe pot-shaped end 11 has a wall opening 42 between the cylinder chamber 12 and an inner space 43 of the discharge nozzle 5. Fig. 2 shows the verifiable sealing points and the possible ways of pressure drop V1, V2 and V3 in case of leaks. For this purpose, an air pressure P in the direction of the media guide
47 (vgl. Fig. 7) angelegt. Wenn der Zwischenventilteller 18 zum oberen Ventilsitz 14 nicht abdichtet und/oder der Ventilsitz 15 nicht dichtet, dringt Luft durch die Wandöffnung 42 in den Innenraum 43 und ist als Druckabfall V2 messbar. Undichtigkeiten im Bereich des Ventilsitzes 14 sind als Druckabfall V1 messbar. Undichtigkeiten zwischen der Innenhülse 7 und dem Austragstutzen 5 sind als Druckabfall V3 messbar.47 (see Fig. 7) applied. If the intermediate valve plate 18 does not seal to the upper valve seat 14 and / or the valve seat 15 does not seal, air penetrates through the wall opening 42 into the inner space 43 and can be measured as a pressure drop V2. Leaks in the region of the valve seat 14 can be measured as a pressure drop V1. Leaks between the inner sleeve 7 and the discharge nozzle 5 can be measured as pressure drop V3.
Der Fluidaustragkopf 1 weist ferner an dem topfförmigen Ende 11 einen Außennocken 44 auf, der als Anschlag mit einer Rippe 45 an einer InnenwandungThe fluid discharge head 1 further has at the cup-shaped end 11 an outer cam 44 which serves as a stop with a rib 45 on an inner wall
48 des Austragstutzens 5 bei einer axial aufwärts gerichteten Bewegung der Innenhülse 7 zusammenwirkt.48 of the discharge nozzle 5 cooperates in an axially upward movement of the inner sleeve 7.
Der Austragstutzen 5, der zur Weiterleitung des aus dem Medienbehälter ausgetragenen Fluids dient, schließt mit seinem Medienkanal 8 an einen Austragabschnitt 26 in Form eines Austragkanals des Gegenstücks 4 an. Die öffnungsweite des Kanals 26 ist wählbar und kann über Einsatzstücke an die gewünschte Fördermenge angepasst werden. Die Kanäle 26, 8 und 21 sind vorzugsweise entlang einer zentralen Achse übereinandergesetzt.The discharge nozzle 5, which serves for the forwarding of the discharged from the media container fluid, closes with its media channel 8 to a discharge section 26 in the form of a discharge channel of the counterpart 4. The opening width of the channel 26 is selectable and can use inserts on the desired flow rate can be adjusted. The channels 26, 8 and 21 are preferably stacked along a central axis.
Der Austragstutzen 5 besitzt hier die Form einer Nasenolive, um als Nasenadapter auf das Gegenstück 4 aufgesetzt werden zu können. Für andere Anwendungszwecke kann der Austragstutzen 5 andere Außenkonturen besitzen.The Austragstutzen 5 here has the shape of a nose olive to be able to be placed as a nose adapter on the counterpart 4. For other applications, the discharge nozzle 5 may have other outer contours.
Im Übrigen gelten die vorstehenden Ausführungen zu dem ersten und zweiten Ausführungsbeispiel des Fluidaustragkopf hier entsprechend. Incidentally, the above statements on the first and second embodiments of the Fluidaustragkopf apply here accordingly.

Claims

Patentansprüche claims
1. Fluidaustragkopf mit einem eine Austragöffnung (6) aufweisenden Austragstutzen (5), in dem eine Innenhülse (7) angeordnet ist, die einen Medienkanal (8) aufweist und einen die Austragöffnung (6) selbsttätig schließenden federbelasteten Ventilkörper (10) aufnimmt, dadurch gekennzeichnet, dass der Ventilkörper (10) als zylindrischer Kolben ausgebildet ist, der in einer von der Innenhülse (7) gebildeten Zylinderkammer (12) axial verschiebbar ist, wobei ein oberer (14) und ein unterer Ventilsitz (15) für die Kolbenenden (16, 17) vorgesehen sind, und der Ventilkörper (10) einen Zwischenventilteller (18) aufweist, der einen Kammerboden einer an den Medienkanal (8) angeschlossenen Druckkammer (19) bildet, und zum öffnen des oberen Ventilsitzes (14) in der Druckkammer ein Medienaustragdruck einstellbar ist, der höher ist als eine den Ventilkörper (10) zuhaltende Federkraft.1. Fluid discharge head with a discharge opening (6) having a discharge nozzle (5), in which an inner sleeve (7) is arranged, which has a media channel (8) and the discharge opening (6) automatically closing spring-loaded valve body (10) receives, characterized characterized in that the valve body (10) is designed as a cylindrical piston which is axially displaceable in a cylinder chamber (12) formed by the inner sleeve (7), wherein an upper (14) and a lower valve seat (15) for the piston ends (16 , 17) are provided, and the valve body (10) has an intermediate valve plate (18) which forms a chamber bottom of a pressure chamber (19) connected to the media channel (8), and a Medienaustragdruck to open the upper valve seat (14) in the pressure chamber is adjustable, which is higher than a valve body (10) zuhaltende spring force.
2. Fluidaustragkopf nach Anspruch 1 , dadurch gekennzeichnet, dass der Zwischenventilteller (18) die Druckkammer (19) zum oberen Ventilsitz (14) abdichtet.2. Fluid discharge head according to claim 1, characterized in that the intermediate valve plate (18) seals the pressure chamber (19) to the upper valve seat (14).
3. Fluidaustragkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zwischenventilteller (18) als umlaufende Dichtungslippe ausgebildet ist, die den Ventilkörper (10) in der Zylinderkammer (12) bei seiner Auf- und Abwärtsbewegung führt.3. Fluid discharge head according to claim 1 or 2, characterized in that the intermediate valve plate (18) is designed as a circumferential sealing lip which guides the valve body (10) in the cylinder chamber (12) during its up and down movement.
4. Fluidaustragkopf nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der untere Ventilsitz (15) ein tüllenartig verbreitertes Kolbenende (17) abdichtend aufnimmt.4. Fluid discharge head according to one of claims 1 to 3, characterized in that the lower valve seat (15) receives a spout-like broadened piston end (17) sealingly.
5. Fluidaustragkopf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass mindestens ein Ventilsitz (14, 15) als Führungslager für ein Kolbenende (16, 17) ausgebildet ist. 5. Fluid discharge head according to one of claims 1 to 4, characterized in that at least one valve seat (14, 15) as a guide bearing for a piston end (16, 17) is formed.
6. Fluidaustragkopf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Innenhülse (7) ein Verbindungsglied (9) zur Verbindung mit einem Gegenstück (4) einer Austragvorrichtung (2) aufweist.6. Fluid discharge head according to one of claims 1 to 5, characterized in that the inner sleeve (7) has a connecting member (9) for connection to a counterpart (4) of a discharge device (2).
7. Fluidaustragkopf nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Zylinderkammer (12) topfartig ausgebildet ist.7. Fluid discharge head according to one of claims 1 to 6, characterized in that the cylinder chamber (12) is pot-shaped.
8. Fluidaustragkopf nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Medienkanal (8) als Durchlasskanal (21) sich durch den Ventilkörper (10) erstreckt.8. Fluid discharge head according to one of claims 1 to 7, characterized in that the media channel (8) as a passage channel (21) extends through the valve body (10).
9. Fluidaustragkopf nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Durchlasskanal (21) zentrisch durch den Ventilkörper (10) geführt ist.9. Fluid discharge head according to one of claims 1 to 8, characterized in that the passage channel (21) is guided centrally through the valve body (10).
10. Fluidaustragkopf nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Zylinderkammer (12) eine Schulter (27) als Abstützfläche für eine Druckfeder (20) zur Federvorspannung des Ventilkörpers (10) aufweist.10. Fluid discharge head according to one of claims 1 to 9, characterized in that the cylinder chamber (12) has a shoulder (27) as a support surface for a compression spring (20) for spring preload of the valve body (10).
11. Fluidaustragkopf nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der obere Ventilsitz (14) in einer Buchse (24) ausgebildet ist.11. Fluid discharge head according to one of claims 1 to 10, characterized in that the upper valve seat (14) in a bushing (24) is formed.
12. Fluidaustragkopf nach Anspruch 11 , dadurch gekennzeichnet, dass die Buchse (24) als geschlitzte freistehende Buchse einstückig mit dem Austragstutzen (5) ausgebildet ist.12. Fluid discharge head according to claim 11, characterized in that the bushing (24) is formed as a slotted freestanding bushing integral with the discharge nozzle (5).
13. Fluidaustragkopf nach Anspruch 11 , dadurch gekennzeichnet, dass die Buchse (24) als einsetzbares Bauteil (29) ausgebildet ist.13. Fluid discharge head according to claim 11, characterized in that the bush (24) is designed as an insertable component (29).
14. Fluidaustragkopf nach Anspruch 13, dadurch gekennzeichnet, dass das eingesetzte Bauteil (29) spinnenartig mit Beinen (30) geformt ist und kopfseitig Drallkanäle (31) aufweist. 14. Fluid discharge according to claim 13, characterized in that the inserted component (29) is spider-like with legs (30) is formed and head side swirl channels (31).
15. Fluidaustragkopf nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass die Druckkammer (19) die Austragöffnung (6) mit einem Anströmkessel umgibt.15. Fluid discharge head according to one of claims 1 to 14, characterized in that the pressure chamber (19) surrounds the discharge opening (6) with a Anströmkessel.
16. Fluidaustragkopf nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass der Medienkanal (8) an einen Austragabschnitt (26) einer Medienführung (34) in Form von aneinander anschließenden und innerhalb des Fluidaustragkopfes (1) liegenden Kanalabschnitten und/oder Medienräumen anschließt.16. Fluid discharge head according to one of claims 1 to 15, characterized in that the media channel (8) to a discharge section (26) of a media guide (34) in the form of adjoining and within the Fluidaustragkopfes (1) lying channel sections and / or media spaces ,
17. Fluidaustragkopf nach Anspruch 16, dadurch gekennzeichnet, dass der Medienkanal (8) an einen kammerförmigen, mit einem Ventil (32) gegenüber Medienrückfluss gesicherten Austragabschnitt (26) eines Austragsystems (33) anschließbar ist. 17. Fluid discharge according to claim 16, characterized in that the media channel (8) to a chamber-shaped, with a valve (32) against media return flow secured discharge section (26) of a discharge system (33) can be connected.
EP09761388.9A 2008-06-10 2009-05-26 Fluid discharge head Active EP2293880B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008027598A DE102008027598A1 (en) 2008-06-10 2008-06-10 Fluid discharge head for use with fluid discharge device, has valve body with intermediate valve disk that defines compartment bottom of pressure chamber, where medium discharge pressure is adjusted in chamber to open upper valve seat
DE102008027600A DE102008027600A1 (en) 2008-06-10 2008-06-10 Fluid discharge head for use with fluid discharge device, has valve body with intermediate valve disk that defines compartment bottom of pressure chamber, where medium discharge pressure is adjusted in chamber to open upper valve seat
PCT/EP2009/003721 WO2009149825A1 (en) 2008-06-10 2009-05-26 Fluid discharge head

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EP2293880A1 true EP2293880A1 (en) 2011-03-16
EP2293880B1 EP2293880B1 (en) 2016-09-28
EP2293880B2 EP2293880B2 (en) 2021-05-05

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EP09761388.9A Active EP2293880B2 (en) 2008-06-10 2009-05-26 Fluid discharge head

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US (1) US8985401B2 (en)
EP (1) EP2293880B2 (en)
JP (1) JP5458328B2 (en)
CN (1) CN102056677B (en)
BR (1) BRPI0915020B1 (en)
CA (1) CA2725608C (en)
ES (1) ES2609294T5 (en)
RU (1) RU2488448C2 (en)
WO (1) WO2009149825A1 (en)

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Also Published As

Publication number Publication date
BRPI0915020A2 (en) 2015-10-27
RU2488448C2 (en) 2013-07-27
WO2009149825A1 (en) 2009-12-17
CN102056677B (en) 2014-02-26
RU2010154455A (en) 2012-08-20
CA2725608C (en) 2016-09-20
ES2609294T3 (en) 2017-04-19
EP2293880B2 (en) 2021-05-05
CN102056677A (en) 2011-05-11
US8985401B2 (en) 2015-03-24
EP2293880B1 (en) 2016-09-28
BRPI0915020B1 (en) 2020-02-04
JP2011523894A (en) 2011-08-25
US20110084100A1 (en) 2011-04-14
CA2725608A1 (en) 2009-12-17
JP5458328B2 (en) 2014-04-02
ES2609294T5 (en) 2021-12-01

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