EP0169307A3 - Hot melt adhesive pump with ported gears - Google Patents

Hot melt adhesive pump with ported gears Download PDF

Info

Publication number
EP0169307A3
EP0169307A3 EP85103674A EP85103674A EP0169307A3 EP 0169307 A3 EP0169307 A3 EP 0169307A3 EP 85103674 A EP85103674 A EP 85103674A EP 85103674 A EP85103674 A EP 85103674A EP 0169307 A3 EP0169307 A3 EP 0169307A3
Authority
EP
European Patent Office
Prior art keywords
hot melt
melt adhesive
gear
pump
adhesive
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.)
Withdrawn
Application number
EP85103674A
Other languages
German (de)
French (fr)
Other versions
EP0169307A2 (en
Inventor
Richard G. Klein
James W. Schmitkons
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.)
Nordson Corp
Original Assignee
Nordson Corp
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
Application filed by Nordson Corp filed Critical Nordson Corp
Publication of EP0169307A2 publication Critical patent/EP0169307A2/en
Publication of EP0169307A3 publication Critical patent/EP0169307A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B01F25/62—Pump mixers, i.e. mixing within a pump of the gear type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/36—Mixing of ingredients for adhesives or glues; Mixing adhesives and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids

Abstract

A hot melt adhesive pump having a first stage gear pump for metering molten hot melt adhesive into a second stage gear pump where gas is mixed and driven into solution with the adhesive is provided with ports extending between opposed gear faces permitting the leakage of adhesive under pressure between gear faces. Pressure imbalances which might otherwise exist due to the accumulation of hot melt adhesive in an interface between the gear faces and adjacent surfaces, e.g., a pair of plates, between which the gears are sandwiched, are alleviated because adhesive under pressure in this interface can pass through the ports, thereby balanc­ ing the thrust forces on the opposed gear faces. The result is reduced gear and end plate wear and increased pump life.
EP85103674A 1984-05-18 1985-03-27 Hot melt adhesive pump with ported gears Withdrawn EP0169307A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61194584A 1984-05-18 1984-05-18
US611945 1984-05-18

Publications (2)

Publication Number Publication Date
EP0169307A2 EP0169307A2 (en) 1986-01-29
EP0169307A3 true EP0169307A3 (en) 1987-01-07

Family

ID=24451042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103674A Withdrawn EP0169307A3 (en) 1984-05-18 1985-03-27 Hot melt adhesive pump with ported gears

Country Status (4)

Country Link
EP (1) EP0169307A3 (en)
JP (1) JPH0811957B2 (en)
AU (1) AU4227285A (en)
DE (1) DE169307T1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102380324B (en) * 2011-11-28 2016-05-04 无锡威顺煤矿机械有限公司 A kind of hydraulic automatic liquid distribution device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62233048A (en) * 1986-04-01 1987-10-13 Nippon Electric Ind Co Ltd Three-phase induction motor
CN102817831B (en) * 2011-06-08 2015-08-26 苏州工业园区华西泵业有限公司 Large Copacity stirs metering pump
ITAN20130102A1 (en) * 2013-05-30 2014-12-01 Marzocchi Pompe S P A HYDRAULIC PUMP OR HYDRAULIC GEAR MOTOR WITH HELICAL TOOTH GEAR WITH HYDRAULIC SYSTEM FOR BALANCING OF AXIAL FORCES.
JP7095830B2 (en) * 2018-07-06 2022-07-05 住ベシート防水株式会社 Waterproof sheet joining device and waterproof sheet joining method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558247A (en) * 1967-11-28 1971-01-26 Bronzavia Sa Method and device for adjusting the lateral clearance in a rotary displacement pump
GB1252746A (en) * 1967-12-23 1971-11-10
US4009974A (en) * 1975-02-12 1977-03-01 Nordson Corporation Method and apparatus for pumping viscous material
US4200207A (en) * 1978-02-01 1980-04-29 Nordson Corporation Hot melt adhesive foam pump system
DD152393A1 (en) * 1980-08-01 1981-11-25 Guenter Wagner HYDROSTATIC GEARING MACHINE
GB2085081A (en) * 1980-10-06 1982-04-21 Fluid Kinetics Inc Submersible Gear Pump for Viscous Liquids

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676183U (en) * 1979-11-16 1981-06-22
JPS58102791U (en) * 1982-01-05 1983-07-13 旭化成株式会社 high pressure gear pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558247A (en) * 1967-11-28 1971-01-26 Bronzavia Sa Method and device for adjusting the lateral clearance in a rotary displacement pump
GB1252746A (en) * 1967-12-23 1971-11-10
US4009974A (en) * 1975-02-12 1977-03-01 Nordson Corporation Method and apparatus for pumping viscous material
US4200207A (en) * 1978-02-01 1980-04-29 Nordson Corporation Hot melt adhesive foam pump system
DD152393A1 (en) * 1980-08-01 1981-11-25 Guenter Wagner HYDROSTATIC GEARING MACHINE
GB2085081A (en) * 1980-10-06 1982-04-21 Fluid Kinetics Inc Submersible Gear Pump for Viscous Liquids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102380324B (en) * 2011-11-28 2016-05-04 无锡威顺煤矿机械有限公司 A kind of hydraulic automatic liquid distribution device

Also Published As

Publication number Publication date
JPH0811957B2 (en) 1996-02-07
AU4227285A (en) 1985-11-21
JPS611884A (en) 1986-01-07
EP0169307A2 (en) 1986-01-29
DE169307T1 (en) 1986-07-24

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Legal Events

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Effective date: 19870708

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Inventor name: SCHMITKONS, JAMES W.

Inventor name: KLEIN, RICHARD G.