US3807441A - Electrically operated valves for delivering fluid under pressure - Google Patents
Electrically operated valves for delivering fluid under pressure Download PDFInfo
- Publication number
- US3807441A US3807441A US00260272A US26027272A US3807441A US 3807441 A US3807441 A US 3807441A US 00260272 A US00260272 A US 00260272A US 26027272 A US26027272 A US 26027272A US 3807441 A US3807441 A US 3807441A
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- United States
- Prior art keywords
- valve
- winding
- pressure
- slide
- force
- 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.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
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- 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
- Y10T137/2278—Pressure modulating relays or followers
- Y10T137/2409—With counter-balancing pressure feedback to the modulating device
-
- 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
- Y10T137/7782—With manual or external control for line 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
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86622—Motor-operated
Definitions
- An electrically operated valve comprises a distributor having a slide operative to selectively place a fluid actuated device in communication with a source of pressurised fluid, or with a fluid outlet.
- the slide is actuated by an electrodynamic motor in response to a control signal, whereby the fluid pressure in the device [56] References Cited is dependent on the signal.
- an electrically operated valve for delivering a fluid pressure governed by a control signal
- feed pipe means means defining an outlet
- a distributor said distributor having slide means selectively placing the feed pipe means in communication with a source of fluid under pressure or with the outlet, means subjecting the slide means to an axial force dependent on pressure within an associated fluid-actuated device and an electrodynamicmotor, said motor having a winding through which flows a current governed by the control signal, the said winding constituting the moving part of the electrodynamic motor and being connected to the slide means
- the force acting on the winding and the force dependent on the pressure in the associated device are opposite in direction so as to balance each other at least partially; the pressure in the associated device is then an increasing function of the control signal.
- the force acting on the winding and the force dependent on the pressure in the associated device act in the same direction, the valve having means for applying to the slide means a forceopposite in direction to the foregoing two forces; the pressure in the associated device is in this case a decreasing function of the control signal.
- This embodiment of the invention is particularly useful in preventing wheel lock on a motor vehicle, the electrically operated valve being interposed between the pressure source and a brake cylinder of a braked wheel, the control winding being energised by a signal having a mean intensity dependent on, for instance, the degree of wheel slip.
- the valve has a chamber connected to the feed pipe, within which chamber a transmission or thrust member connected to the slide means and smaller in section than the latter is mounted with freedom to move.
- FIG. 1 is a section of one embodiment of a valve in accordance with the invention.
- FIG. 2 is a section, to an enlarged scale, of a portion of a valve
- FIGS. 3 to 7 are sections showing details of other embodiments of the invention.
- the pressure source consists of a hydraulic accumulator 11, charged from a tank 12 by a pump 13, and maintaining a pressure P higher than that which normally exists in a fluid actuated device 15.
- An intermediate feed pipe passage 14 is connected to the device 15, represented diagrammatically by a ram. According to the position of the slide 3, the passage 14 is either closed by the intermediate bearing portion 7 or partially or fully in communication with either the groove 4 or the groove 5.
- One end of the bore 2 opens into a chamber 16 of the same section, and which is connected to the passage 14 by a passage 17.
- the slide 3 is actuated by an electrodynamic motor; in other words the motor applies the force F to the slide 3.
- the motor incorporates a permanent magnet 18 mounted between a pole piece 19 and the end wall of a pot-shaped magnetic yoke 20 so as to define, in conjunction with the pole piece 19, an annular gap 21; the yoke 20 is fixed to the body 1 of the distributor.
- a winding 22 supported on a cup 23.
- the cup 23 is biased against the end of the slide 3 by a spring 24; a spring 25 mounted within the chamber 16, acts in opposition to the spring 24 whereby, when a control signal is zero, the slide is located in an equilibrium position in which the axial surface of the bearing portion 7 which faces towards the groove 5 lies in the transverse plane of that position of the generator line of the passage 14 which is nearest to the groove 5 (as shown in FIG. 2).
- the magnet 18 is replaced by a ring magnet 18, fitted around an H- .sectioned member 34, in which the limbs of the member 34 are of unequal length, an annular air gap 21 being defined between the shorter limb of the member 34 and a ring 35.
- the magnet 18 is replaced by a coil 36.
- a current which varies with the signal can be passed through the coil 36 and/or the winding 22.
- the winding 22 is fixed on a drum 26 slidable to an axial hub 27, fixed to the pole piece 19.
- the drum 26 is connected by two or more levers 28, pivotally mounted at 29 on the body 1, to a cup 30, biased against the slide 3 by a spring 24.
- the pivot 29 is nearer to the pivotal connection between the levers 28 and the cup 20 than to the pivotal connection between the levers 28 and the drum 26.
- FIG. 6 The embodiment of FIG. 6 is generally similar to that shown in FIG. 1 except that the cup 23 is hooked over the slide 3. Additionally, a thrust pin 31 extends axially through the pole piece 19, the cup and the magnet 18, which is ring-shaped for this purpose, and bears against the slide 3.
- the pressure P in the device 15 is proportional to a force (I) exerted on the pin 31; when current of mean strength l,, is passed through the winding 22 in a sense to move the winding 22 to the left as viewed in FIG. 6, it exerts on the slide 3 a force F proportional to 1,, and opposite in direction to the forcef.
- the pressure P, falls and becomes proportional to f F, that is to say that the value by which it falls is proportional to l,,,.
- the bore 2 is connected to a chamber 16 by an aperture through which a thrust pin 32 extends. Equilibrium is established when the value of the force F is equal to s.P,,, s being the cross-sectional area of the pin 33. The force F is thus smaller than the value it will have in the embodiment in FIG. 1.
- the spring 24 can be pre-stressed as to bring the slide 3 into a position in which the passages 9 and 14 are in communication even at maximum pressure. Then, the winding 22 being arranged to be energized so as to be subjected to a force directed towards the left as viewed in FIG. 1, the pressure in the device 15 would have a value P in the absence of current in the winding 22, but, with current flowing through that winding, would fall by an amount related linearly to the mean strength of that current.
- said distributor having slide means selectively placing the feed pipe means in communication with said source of fluid under pressure and with the outlet,
- g. means subjecting the slide means to a first axial force dependent on pressure within said associated fluid-actuated device
- an electrodynamic motor having a winding through which flows a current governed by the control signal, the said winding constituting the moving part of the electrodynamic motor and being connected to the slide means to apply a second axial force thereto.
- a valve as claimed in claim 4 further comprising linking means connecting the winding to the slide means, said linking means applying a mechanical advantage to the slide means.
- valve as claimed in claim 1, in which the force acting on the winding and the force dependent on the pressure in said associated device act in the same direction, said valve further comprising means exerting a force on the slide means opposite in direction to the other forces.
- a valve as claimed in claim 6, in which the means exerting the opposite force comprises a spring.
- a valve as claimed in claim 1, in which the said means subjecting the slide means to a force dependent on the pressure in the associated device comprises means defining a chamber in communication with the feed pipe means, and
- the thrust member being smaller in section that the slide means, one end portion of the thrust member being received in said chamber, and the other end of the thrust member being movable with the slide means.
Abstract
An electrically operated valve comprises a distributor having a slide operative to selectively place a fluid actuated device in communication with a source of pressurised fluid, or with a fluid outlet. The slide is actuated by an electrodynamic motor in response to a control signal, whereby the fluid pressure in the device is dependent on the signal.
Description
United States Paten 1191 Grosseau Apr. 30, 1974 ELECTRICALLY OPERATED VALVES FOR DELIVERING FLUID UNDER PRESSURE [75] Inventor: Albert Grosseau, Chaville, France [73] Assignee: S.A. Automobiles Citroen, Paris,
France [22] Filed: June 6, 1972 [211 App]. No.: 260,272
[30] Foreign Application Priority Data 9/1968 Kubilos l37/625.6l X
Primary ExaminerHenry T. Klinksiek Attorney, Agent, or Firm-Eyre, Mann & Lucas ABSTRACT An electrically operated valve comprises a distributor having a slide operative to selectively place a fluid actuated device in communication with a source of pressurised fluid, or with a fluid outlet. The slide is actuated by an electrodynamic motor in response to a control signal, whereby the fluid pressure in the device [56] References Cited is dependent on the signal.
UNITED STATES PATENTS 3,179,123 4/1965 Kowalslri et al. 1'37 495 5 -10 Claims, 7 Drawing Figures 1 ELECTRICALLY OPERATED VALVES FOR DELIVERING FLUID UNDER PRESSURE FIELD OF THE INVENTION The present invention relates to electrically operated valves.
SUMMARY OF THE INVENTION According to the present invention, there is provided in an electrically operated valve for delivering a fluid pressure governed by a control signal, feed pipe means, means defining an outlet, a distributor, said distributor having slide means selectively placing the feed pipe means in communication with a source of fluid under pressure or with the outlet, means subjecting the slide means to an axial force dependent on pressure within an associated fluid-actuated device and an electrodynamicmotor, said motor having a winding through which flows a current governed by the control signal, the said winding constituting the moving part of the electrodynamic motor and being connected to the slide means,
In one embodiment of the invention, the force acting on the winding and the force dependent on the pressure in the associated device are opposite in direction so as to balance each other at least partially; the pressure in the associated device is then an increasing function of the control signal.
In another embodiment of the invention, the force acting on the winding and the force dependent on the pressure in the associated device act in the same direction, the valve having means for applying to the slide means a forceopposite in direction to the foregoing two forces; the pressure in the associated device is in this case a decreasing function of the control signal. This embodiment of the invention is particularly useful in preventing wheel lock on a motor vehicle, the electrically operated valve being interposed between the pressure source and a brake cylinder of a braked wheel, the control winding being energised by a signal having a mean intensity dependent on, for instance, the degree of wheel slip.
Preferably, the valve has a chamber connected to the feed pipe, within which chamber a transmission or thrust member connected to the slide means and smaller in section than the latter is mounted with freedom to move.
BRIEF DESCRIPTION OF THE DRAWINGS Embodiments of the invention will now be described, by way of example only, with reference to the accompanying diagrammatic drawings, in which:
FIG. 1 is a section of one embodiment of a valve in accordance with the invention;
FIG. 2 is a section, to an enlarged scale, of a portion of a valve; and
FIGS. 3 to 7 are sections showing details of other embodiments of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS a pressure source, and an outlet passage 10, connected to a vent, openinto the grooves 4 and 5, respectively. The pressure source consists of a hydraulic accumulator 11, charged from a tank 12 by a pump 13, and maintaining a pressure P higher than that which normally exists in a fluid actuated device 15. An intermediate feed pipe passage 14 is connected to the device 15, represented diagrammatically by a ram. According to the position of the slide 3, the passage 14 is either closed by the intermediate bearing portion 7 or partially or fully in communication with either the groove 4 or the groove 5. One end of the bore 2 opens into a chamber 16 of the same section, and which is connected to the passage 14 by a passage 17.
When axial force (F) is applied to the end of the slide 3 remote from the chamber 16, the slide 3 moves to the right (as viewed in FIG. 1), placing the passage 14 in communication with the passage 9 and hence with the high-pressure source. The pressure which then acts in the device 15 and hence in the chamber 16 acts as a fluid actuated device that tends to move the slide 3 towards the left. There is finally established in the device 15 a pressure (P,,) proportional to F, its value here being F/S, where S is the cross-sectional area of the end face of the bearing portion 8. Any variation in the force F or pressure P results in displacement of the slide 3 so as to alter the ratio of the pressure differentials between the passage 14 and the grooves 4 and 5, that is to say between the pressure source and the vent, in a direction corresponding to the restoration of equilibrium.
The slide 3 is actuated by an electrodynamic motor; in other words the motor applies the force F to the slide 3. The motor incorporates a permanent magnet 18 mounted between a pole piece 19 and the end wall of a pot-shaped magnetic yoke 20 so as to define, in conjunction with the pole piece 19, an annular gap 21; the yoke 20 is fixed to the body 1 of the distributor.
Mounted within the gap 21 is a winding 22 supported on a cup 23. The cup 23 is biased against the end of the slide 3 by a spring 24; a spring 25 mounted within the chamber 16, acts in opposition to the spring 24 whereby, when a control signal is zero, the slide is located in an equilibrium position in which the axial surface of the bearing portion 7 which faces towards the groove 5 lies in the transverse plane of that position of the generator line of the passage 14 which is nearest to the groove 5 (as shown in FIG. 2).
In this way, in the absence of current in the winding 22, the pressure in the connection to the deivce 15 is zero; but when current is passed through the winding 22 in the appropriate direction, the winding tends to move axially, towards the right (as viewed in FIG. 1), exerting on the slide 3 a force F which is proportional to the mean strength of current 1,, passing through the winding. The pressure in the device 15 is ultimately proportional to this mean current strength I,,,.
In the embodiment shown in FIG. 3, the magnet 18 is replaced by a ring magnet 18, fitted around an H- .sectioned member 34, in which the limbs of the member 34 are of unequal length, an annular air gap 21 being defined between the shorter limb of the member 34 and a ring 35.
In the embodiment shown in FIG. 4, the magnet 18 is replaced by a coil 36. In this case, a current which varies with the signal can be passed through the coil 36 and/or the winding 22.
In the embodiment of FIG. 5, the winding 22 is fixed on a drum 26 slidable to an axial hub 27, fixed to the pole piece 19. The drum 26 is connected by two or more levers 28, pivotally mounted at 29 on the body 1, to a cup 30, biased against the slide 3 by a spring 24. The pivot 29 is nearer to the pivotal connection between the levers 28 and the cup 20 than to the pivotal connection between the levers 28 and the drum 26. In use, current is passed through the winding 22 whereby the winding and the drum 26 move to the left as viewed in FIG. this movement is transmitted via the levers 28 to the cup 30 (and hence to the slide 3) with amplitude reduced, that is to say with the force increased, i.e. with a mechanical advantage.
The embodiment of FIG. 6 is generally similar to that shown in FIG. 1 except that the cup 23 is hooked over the slide 3. Additionally, a thrust pin 31 extends axially through the pole piece 19, the cup and the magnet 18, which is ring-shaped for this purpose, and bears against the slide 3. In the absence of current, the pressure P in the device 15 is proportional to a force (I) exerted on the pin 31; when current of mean strength l,, is passed through the winding 22 in a sense to move the winding 22 to the left as viewed in FIG. 6, it exerts on the slide 3 a force F proportional to 1,, and opposite in direction to the forcef. The pressure P,, falls and becomes proportional to f F, that is to say that the value by which it falls is proportional to l,,,.
In the embodiment shown in FIG. 7, the bore 2 is connected to a chamber 16 by an aperture through which a thrust pin 32 extends. Equilibrium is established when the value of the force F is equal to s.P,,, s being the cross-sectional area of the pin 33. The force F is thus smaller than the value it will have in the embodiment in FIG. 1.
In the embodiment shown in FIG. 1, the spring 24 can be pre-stressed as to bring the slide 3 into a position in which the passages 9 and 14 are in communication even at maximum pressure. Then, the winding 22 being arranged to be energized so as to be subjected to a force directed towards the left as viewed in FIG. 1, the pressure in the device 15 would have a value P in the absence of current in the winding 22, but, with current flowing through that winding, would fall by an amount related linearly to the mean strength of that current.
What is claimed is:
1. In an electrically operated valve for delivering a fluid pressure governed by a control signal,
a. feed pipe means,
b. means defining an outlet,
c. a fluid pressure source,
d. a distributor connected to said fluid pressure source and said feed pipe and outlet means,
e. said distributor having slide means selectively placing the feed pipe means in communication with said source of fluid under pressure and with the outlet,
f. a fluid actuated device associated with said distributor,
g. means subjecting the slide means to a first axial force dependent on pressure within said associated fluid-actuated device, and
h. an electrodynamic motor, having a winding through which flows a current governed by the control signal, the said winding constituting the moving part of the electrodynamic motor and being connected to the slide means to apply a second axial force thereto.
2. A valve as claimed in claim 1, in which the electrodynamic motor includes a permanent magnet.
3. A valve as claimed in claim 1, in which the electrodynamic motor comprises one fixed winding for creating a magnetic field, and
one moving winding.
4. A valve as claimed in claim 1, in which the force acting on the winding and the force dependent on the pressure in said associated device act in opposite directions so as to cancel each other out at least partially.
5. A valve as claimed in claim 4, further comprising linking means connecting the winding to the slide means, said linking means applying a mechanical advantage to the slide means.
6. A valve as claimed in claim 1, in which the force acting on the winding and the force dependent on the pressure in said associated device act in the same direction, said valve further comprising means exerting a force on the slide means opposite in direction to the other forces.
7. A valve as claimed in claim 6, in which the means exerting the opposite force comprises a spring.
8. A valve as claimed in claim 7, in which the spring is pre-stressed and exerts sufficient force on the slide means to retain the slide means in a position in which the feed pipe means is in communication with the source of fluid under pressure, even when the pressure in the associated device is at a maximum, the said force being insufficient to hold the slide means in the said position once the force acting on the winding has reached a predetermined value.
9. A valve as claimed in claim 1, in which the said means subjecting the slide means to a force dependent on the pressure in the associated device comprises means defining a chamber in communication with the feed pipe means, and
a movable thrust member, the thrust member being smaller in section that the slide means, one end portion of the thrust member being received in said chamber, and the other end of the thrust member being movable with the slide means.
10. A valve as claimed in claim 9, in which the said other end of the thrust member bears against the slide means.
Claims (10)
1. In an electrically operated valve for delivering a fluid pressure governed by a control signal, a. feed pipe means, b. means defining an outlet, c. a fluid pressure source, d. a distributor connected to said fluid pressure source and said feed pipe and outlet means, e. said distributor having slide means selectively placing the feed pipe means in communication with said source of fluid under pressure and with the outlet, f. a fluid actuated device associated with said distributor, g. means subjecting the slide means to a first axial force dependent on pressure within said associated fluid-actuated device, and h. an electrodynamic motor, having a winding through which flows a current governed by the control signal, the said winding constituting the moving part of the electrodynamic motor and being connected to the slide means to apply a second axial force thereto.
2. A valve as claimed in claim 1, in which the electrodynamic motor includes a permanent magnet.
3. A valve as claimed in claim 1, in which the electrodynamic motor comprises one fixed winding for creating a magnetic field, and one moving winding.
4. A valve as claimed in claim 1, in which the force acting on the winding and the force dependent on the pressure in said associated device act in opposite directions so as to cancel each other out at least partially.
5. A valve as claimed in claim 4, further comprising linking means connecting the winding to the slide means, said linking means applying a mechanical advantage to the slide means.
6. A valve as claimed in claim 1, in which the force acting on the winding and the force dependent on the pressure in said associated device act in the same direction, said valve further comprising means exerting a force on the slide means opposite in direction to the other forces.
7. A valve as claimed in claim 6, in which the means exerting the opposite force comprises a spring.
8. A valve as claimed in claim 7, in which the spring is pre-stressed and exerts sufficient force on the slide means to retain the slide means in a position in which the feed pipe means is in communication with the source of fluid under pressure, even when the pressure in the associated device is at a maximum, the said force being insufficient to hold the slide means in the said position once the force acting on the winding has reached a predetermined value.
9. A valve as claimed in claim 1, in which the said means subjecting the slide means to a force dependent on the pressure in the associated device comprises means defining a chamber in communication with the feed pipe means, and a movable thrust member, the thrust member being smaller in section that the slide means, one end portion of the thrust member being received in said chamber, and the other end of the thrust member being movable with the slide means.
10. A valve as claimed in claim 9, in which the said other end of the thrust member bears against the slide means.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7121414A FR2140925A5 (en) | 1971-06-09 | 1971-06-09 |
Publications (1)
Publication Number | Publication Date |
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US3807441A true US3807441A (en) | 1974-04-30 |
Family
ID=9078556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00260272A Expired - Lifetime US3807441A (en) | 1971-06-09 | 1972-06-06 | Electrically operated valves for delivering fluid under pressure |
Country Status (8)
Country | Link |
---|---|
US (1) | US3807441A (en) |
BE (1) | BE784005A (en) |
DE (1) | DE2227552A1 (en) |
ES (1) | ES403632A1 (en) |
FR (1) | FR2140925A5 (en) |
GB (1) | GB1345467A (en) |
IT (1) | IT959093B (en) |
SE (1) | SE377489B (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2280001A1 (en) * | 1974-07-24 | 1976-02-20 | Teves Gmbh Alfred | TWO POSITION, THREE WAY DIRECTIONAL CONTROL VALVE |
EP0123938A2 (en) * | 1983-03-30 | 1984-11-07 | HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG | Electromagnetically actuable valve |
US4579145A (en) * | 1983-08-05 | 1986-04-01 | Robert Bosch Gmbh | Pressure control device |
US4947893A (en) * | 1989-02-28 | 1990-08-14 | Lectron Products, Inc. | Variable force solenoid pressure regulator for electronic transmission controller |
DE4316637A1 (en) * | 1992-05-19 | 1993-11-25 | Kayaba Industry Co Ltd | Electromagnetic proportional pressure reducing valve |
US5295512A (en) * | 1992-02-24 | 1994-03-22 | M. B. Adams And Associates, Inc. | Fluid control spool valve |
US5460201A (en) * | 1993-05-07 | 1995-10-24 | Borcea; Nicky | Electromechanical servovalve |
US5597118A (en) * | 1995-05-26 | 1997-01-28 | Caterpillar Inc. | Direct-operated spool valve for a fuel injector |
US5715867A (en) * | 1994-02-04 | 1998-02-10 | Automobiles Peugeot | Mechanically-controlled power transmission device |
US6467751B1 (en) * | 1999-11-24 | 2002-10-22 | Carleton Technologies, Inc. | Inflation valve |
US20030019531A1 (en) * | 2001-07-11 | 2003-01-30 | Tomohiro Satoh | Linear solenoid valve |
US20080087345A1 (en) * | 2006-10-16 | 2008-04-17 | Caterpillar Inc. | Direct operated cartridge valve assembly |
US20090229693A1 (en) * | 2006-07-28 | 2009-09-17 | Matthew Henry Tibbetts | Hydraulic valves with integral seals |
US20100065766A1 (en) * | 2006-06-01 | 2010-03-18 | Aker Kvaerner Subsea Limited | Electrically operated hydraulic valve |
CN102086947A (en) * | 2009-12-08 | 2011-06-08 | 罗伯特.博世有限公司 | Electromagnetic spool valve with integrated safety function |
CN102213330A (en) * | 2010-04-01 | 2011-10-12 | 株式会社电装 | Solenoid spool valve |
US20150221427A1 (en) * | 2014-01-31 | 2015-08-06 | Borgwarner Inc. | Latching solenoid regulator valve |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3117192A1 (en) * | 1981-04-30 | 1982-11-25 | Internationale Fluggeräte und Motoren GmbH, 6940 Weinheim | Valve drive |
DE3237532A1 (en) * | 1982-10-09 | 1984-04-12 | Robert Bosch Gmbh, 7000 Stuttgart | CONTROL VALVE |
DE3311201C2 (en) * | 1983-03-26 | 1985-06-20 | Mannesmann Rexroth GmbH, 8770 Lohr | Solenoid operated poppet valve |
JPS59194106A (en) * | 1983-04-19 | 1984-11-02 | Ishikawajima Harima Heavy Ind Co Ltd | Direct-acting electric-fluid pressure servo valve |
JPH0223800Y2 (en) * | 1985-09-13 | 1990-06-28 | ||
NO163341C (en) * | 1987-06-17 | 1990-05-09 | Kongsberg Automotive | HYDRAULIC PROPORTIONAL PRESSURE MAGNET VALVE. |
CA2009338C (en) * | 1989-02-28 | 1995-08-01 | Ellsworth Stephen Miller | Variable force solenoid pressure regulator for electronic transmission controller |
DE4027553C1 (en) * | 1990-08-31 | 1991-10-02 | Bruno 8037 Olching De Gruber | |
DE10002279A1 (en) * | 2000-01-20 | 2001-07-26 | David Knuplesch | Electrohydraulic device operated with a current for generating force expresses its force effect by pulling or pressing while incorporating two or more coils moving on bearings on a ferromagnetic rail or cage to create magnetic force. |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3179123A (en) * | 1963-04-10 | 1965-04-20 | Kowalski Slawomir | Regulator and shut-off valve for rocket thrust control |
US3401711A (en) * | 1966-07-29 | 1968-09-17 | Abex Corp | Single receiver port jet displacement servovalve |
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1971
- 1971-06-09 FR FR7121414A patent/FR2140925A5/fr not_active Expired
-
1972
- 1972-05-26 BE BE784005A patent/BE784005A/en unknown
- 1972-06-06 US US00260272A patent/US3807441A/en not_active Expired - Lifetime
- 1972-06-07 GB GB2651972A patent/GB1345467A/en not_active Expired
- 1972-06-07 DE DE19722227552 patent/DE2227552A1/en active Pending
- 1972-06-08 IT IT68834/72A patent/IT959093B/en active
- 1972-06-08 ES ES403632A patent/ES403632A1/en not_active Expired
- 1972-06-09 SE SE7207639A patent/SE377489B/xx unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US3179123A (en) * | 1963-04-10 | 1965-04-20 | Kowalski Slawomir | Regulator and shut-off valve for rocket thrust control |
US3401711A (en) * | 1966-07-29 | 1968-09-17 | Abex Corp | Single receiver port jet displacement servovalve |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2280001A1 (en) * | 1974-07-24 | 1976-02-20 | Teves Gmbh Alfred | TWO POSITION, THREE WAY DIRECTIONAL CONTROL VALVE |
US3995652A (en) * | 1974-07-24 | 1976-12-07 | Itt Industries, Inc. | Directional control valve |
EP0123938A2 (en) * | 1983-03-30 | 1984-11-07 | HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG | Electromagnetically actuable valve |
EP0123938A3 (en) * | 1983-03-30 | 1987-03-25 | Heilmeier & Weinlein Fabrik Fur Oel-Hydraulik Gmbh & Co. Kg | Electromagnetically actuable valve |
US4579145A (en) * | 1983-08-05 | 1986-04-01 | Robert Bosch Gmbh | Pressure control device |
US4947893A (en) * | 1989-02-28 | 1990-08-14 | Lectron Products, Inc. | Variable force solenoid pressure regulator for electronic transmission controller |
US5295512A (en) * | 1992-02-24 | 1994-03-22 | M. B. Adams And Associates, Inc. | Fluid control spool valve |
DE4316637A1 (en) * | 1992-05-19 | 1993-11-25 | Kayaba Industry Co Ltd | Electromagnetic proportional pressure reducing valve |
US5309944A (en) * | 1992-05-19 | 1994-05-10 | Kayaba Kogyo Kabushiki Kaisha | Electromagnetic proportional pressure reducing valve |
US5960831A (en) * | 1993-05-07 | 1999-10-05 | Robohand, Inc. | Electromechanical servovalve |
US5460201A (en) * | 1993-05-07 | 1995-10-24 | Borcea; Nicky | Electromechanical servovalve |
US5715867A (en) * | 1994-02-04 | 1998-02-10 | Automobiles Peugeot | Mechanically-controlled power transmission device |
US5597118A (en) * | 1995-05-26 | 1997-01-28 | Caterpillar Inc. | Direct-operated spool valve for a fuel injector |
US6467751B1 (en) * | 1999-11-24 | 2002-10-22 | Carleton Technologies, Inc. | Inflation valve |
US20030019531A1 (en) * | 2001-07-11 | 2003-01-30 | Tomohiro Satoh | Linear solenoid valve |
AU2007266917B2 (en) * | 2006-06-01 | 2013-05-16 | Aker Subsea Limited | Electrically operated hydraulic valve |
US20100065766A1 (en) * | 2006-06-01 | 2010-03-18 | Aker Kvaerner Subsea Limited | Electrically operated hydraulic valve |
US8210208B2 (en) * | 2006-06-01 | 2012-07-03 | Aker Subsea Limited | Electrically operated hydraulic valve |
US20090229693A1 (en) * | 2006-07-28 | 2009-09-17 | Matthew Henry Tibbetts | Hydraulic valves with integral seals |
US8813786B2 (en) | 2006-07-28 | 2014-08-26 | Aker Subsea Limited | Hydraulic valves with integral seals |
US7766042B2 (en) * | 2006-10-16 | 2010-08-03 | Caterpillar Inc | Direct operated cartridge valve assembly |
US20080087345A1 (en) * | 2006-10-16 | 2008-04-17 | Caterpillar Inc. | Direct operated cartridge valve assembly |
CN102086947A (en) * | 2009-12-08 | 2011-06-08 | 罗伯特.博世有限公司 | Electromagnetic spool valve with integrated safety function |
CN102086947B (en) * | 2009-12-08 | 2015-06-24 | 罗伯特.博世有限公司 | Electromagnetic spool valve with integrated safety function |
CN102213330A (en) * | 2010-04-01 | 2011-10-12 | 株式会社电装 | Solenoid spool valve |
US20150221427A1 (en) * | 2014-01-31 | 2015-08-06 | Borgwarner Inc. | Latching solenoid regulator valve |
US9728314B2 (en) * | 2014-01-31 | 2017-08-08 | Borgwarner, Inc. | Latching solenoid regulator valve |
Also Published As
Publication number | Publication date |
---|---|
ES403632A1 (en) | 1975-05-01 |
BE784005A (en) | 1972-09-18 |
GB1345467A (en) | 1974-01-30 |
DE2227552A1 (en) | 1972-12-21 |
IT959093B (en) | 1973-11-10 |
FR2140925A5 (en) | 1973-01-19 |
SE377489B (en) | 1975-07-07 |
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