WO2006045190A1 - Variable capacity vane pump with force reducing chamber on displacement ring - Google Patents
Variable capacity vane pump with force reducing chamber on displacement ring Download PDFInfo
- Publication number
- WO2006045190A1 WO2006045190A1 PCT/CA2005/001640 CA2005001640W WO2006045190A1 WO 2006045190 A1 WO2006045190 A1 WO 2006045190A1 CA 2005001640 W CA2005001640 W CA 2005001640W WO 2006045190 A1 WO2006045190 A1 WO 2006045190A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- pump
- working fluid
- control
- displacement
- Prior art date
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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
- F04C14/226—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam by pivoting the cam around an eccentric axis
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
- F04C28/20—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the form of the inner or outer contour of the working chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0827—Vane tracking; control therefor by mechanical means
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
Definitions
- the present invention relates to a variable capacity vane pump. More specifically, the present invention relates to a variable capacity vane pump wherein the imbalance in forces on the displacement ring is reduced to allow improved control of the ring.
- Variable capacity vane pumps are well known and feature a capacity adjusting element in the form of a pump displacement ring, or slide, that can be moved to alter the eccentricity of the pump and hence alter the volumetric capacity of the pump.
- the ring is mounted within the pump body by a pivot pin and an appropriate control system, often a piston or pressurized chamber acting against a spring, is provided to move the ring about the pivot to obtain the desired equilibrium pressure from the pump.
- an appropriate control system often a piston or pressurized chamber acting against a spring, is provided to move the ring about the pivot to obtain the desired equilibrium pressure from the pump.
- the pressurized working fluid produced by the pump acts against the ring to force the ring in one direction.
- the control system for the ring typically must have larger components than would otherwise be necessary to move the ring. In many circumstances, especially in an automotive engine environment, these larger components require space which may not be available, or which could be put to better use.
- a variable displacement vane pump comprising: a pump rotor having a plurality of moveable vanes; a pump housing defining a pump chamber with the rotor being located within the chamber; a displacement varying ring pivotally mounted in the pump chamber, the displacement varying ring enclosing the pump rotor to define a high pressure area and a low pressure area about the rotor, the pump housing having an inlet to admit working fluid into the low pressure area and an outlet to receive higher pressure working fluid from the high pressure area; a control mechanism to pivot the displacement varying ring within the pump chamber to vary the volumetric displacement of the pump; and wherein the outlet also provides working fluid to a first portion within the pump chamber outside the displacement varying ring, the working fluid in the first portion acting on an area substantially similar to the area
- the present invention provides a novel variable displacement vane pump wherein high pressure working fluid is provided to a portion of the pump chamber to act on the outside of the displacement control ring to substantially balance the force created by the high pressure working fluid inside the ring. Similarly, low pressure working fluid acts on a portion of the displacement control ring from both inside and outside the pump chamber to substantially balance the forces created these pressures on the displacement control ring. As the resultant pressure forces acting on the pivoting pin are reduced, the movement of the displacement control ring can be smoother, reducing undesirable hysteresis, the wear on the pivot pin is reduced and the additional force required to move the displacement control ring to vary the volumetric displacement of the pump is less than would otherwise be needed, allowing the related control mechanisms to be smaller.
- Figure 1 shows a schematic representation of a prior art variable displacement vane pump
- Figure 2 shows a front view of a first embodiment of a variable capacity vane pump in accordance with the present invention with a displacement varying ring in a maximum displacement position;
- Figure 3 shows the pump of Figure 2 with the displacement varying ring in a minimum displacement position
- Figure 4 shows a front view of a second embodiment of a variable capacity vane pump in accordance with the present invention with a displacement varying ring in a maximum displacement position
- Figure 5 shows the pump of Figure 4 with the displacement varying ring in a minimum displacement position.
- a prior art variable capacity vane pump is indicated at 10 in Figure 1.
- pump 10 includes a displacement ring 12 which is mounted with the body 14 of pump 10 via a pivot pin 16.
- Ring 12 defines a pump chamber 18 within which the pump rotor 20 is located.
- the left hand side of pump chamber 18 is the high pressure side of pump 10 and the right hand side is the low pressure side.
- the resultant pressure differential acting on the inside of the ring 12 results in a net force, indicated by arrow 22, being produced on pivot pin 16.
- force 22 can exert significant force on pin 16.
- a second net force acts on the outside of the ring 12 from the pressurized working fluid in area 26.
- Second force 24 moves ring 12 to act against spring 30, which is part of the capacity control mechanism of pump 10.
- force 24 results in a requirement that control spring 30 be larger than would other wise be the case.
- force 22 will rotate with ring 12 and will act in different directions on pin 16 which can, in some circumstance, result in undesirable hysteresis, or "hunting", of pump 10 about its equilibrium point.
- pivot pin 12 must be sized to accommodate forces 22 and 24 and can wear at a faster rate due to these forces.
- FIG. 2 shows an embodiment of a pump 100 in accordance with the present invention.
- Pump 100 includes a housing 104 defining a pump chamber 108 there within.
- Chamber 108 has a working fluid inlet 112 on the back side of housing 104, through which working fluid is admitted to chamber 108, and a working fluid outlet 116 on the back side of housing 104 through which pressurized working fluid exits chamber 108.
- a displacement varying ring 120 is mounted in chamber 108 via a pivot pin 124 and ring 120 can pivot within a range defined between positions wherein ring 120 abuts against full displacement stop 128 or minimum displacement stop 132.
- Chamber 108 further includes a pump rotor 136, which turns with pump drive shaft 140, and rotor 136 includes the pump vanes 144 which rotate with rotor 136.
- inlet port 1 12 admits inlet working fluid to a portion 148 of the interior of pump chamber 108, from where it is drawn into the low pressure side 152 of the interior of ring 120.
- the high pressure side 156 of the interior of ring 120 is connected to a portion 160 of the interior of pump chamber 108 and then to outlet 116.
- Portion 148 and portion 160 of pump chamber 108 are separated by a pair of seals 164 and 168 which act between housing 104 and slots 172 in ring 120 to seal low pressure portion 148 from high pressure portion 160.
- Seals 164 can be fabricated from any suitable material such as elastomeric rubber compounds, etc.
- the area of ring 120 on which working fluid in portion 160 acts is designed to be similar to the area of ring 120 on which working fluid in high pressure side 156 acts.
- the are of ring 120 on which working fluid in portion 148 acts is designed to be similar to the area of ring 120 on which working fluid in low pressure side 152 acts.
- the undesired force resulting from the high pressure working fluid in portion 160 is typically far greater than the undesired force resulting from the low pressure working fluid in portion 148.
- the reduction of the forces produced in portion 160 is the priority and much of the advantage of the present invention can be achieved without reducing the forces produced in portion 148.
- Control piston 184 has control volume 185 that communicates with a supply of pressurized working fluid from outlet 116, or other suitable supply, applied to it to create a force on control piston 184 to move ring 120.
- both control spring 176 and control piston 184 are smaller than would otherwise be required due to the reduction of the net forces between portion 160 and side 156 and between portion 148 and side 152. Further, the forces exerted on pivot pin 124 are reduced.
- Figure 2 shows pump 100 with ring 120 in its maximum displacement position, with ring 120 abutting stop 128.
- Figure 3 shows pump 100 in its minimum displacement position with ring 120 abutting stop 132.
- Figure 4 shows a second embodiment of a variable displacement vane pump 200 in accordance with the present invention.
- control of the equilibrium pressure is performed with control spring 176 which acts against a control tab 204 in a manner similar to that described above in the previous embodiment.
- control force which acts against control spring 176 results from the pressurize working fluid supplied to control area 208 which acts upon ring 120, in a similar manner to that disclosed in prior art U.S. Patent 4,342,545.
- the forces resulting from working fluid pressure in portion 148 are still largely balanced by the forces created in pump side 152, as are the forces resulting from working fluid pressure in portion 160 which are largely balanced by the forces created in pump side 156.
- an additional seal 212 is located in a slot 216 at the end of control tab 204 to isolate working fluid in control area 208 from working fluid in portion 148.
- seal 212 can be fabricated in any suitable manner of any suitable material.
- control tab 204 abuts a maximum displacement stop 220 which limits movement of ring 120 in the displacement increasing direction.
- Figure 5 shows pump 200 with ring 120 in the minimum displacement position wherein ring 120 abuts minimum displacement stop 132.
- Control of the equilibrium pressure of pump 200 is achieved, in a similar manner to that of pump 100.
- Control spring 176 biases control tab 204 on ring 120 towards control area 208.
- Control area 208 is supplied with pressurized working fluid from outlet 116, or other suitable supply, to create a force on ring 120 against the force of control spring 176.
- both control spring 176 and the area of control area 208 are smaller than would otherwise be required due to the net reduction in the forces between portion 160 and side 156 and between portion 148 and side 152.
- the present invention provides a novel variable displacement vane pump wherein the working fluid in portion 148 of pump chamber 108 acts on the outside of ring 120 to reduce the net forces created by the working fluid in low pressure area 152 acting on the inside of ring 120. Similarly, the working fluid in portion 160 of pump chamber 108 acts on the outside of ring 120 to reduce the net forces created by the working fluid in high pressure area 156 acting on the inside of ring 120. As these forces are reduced, and especially the force created by the high pressure working fluid in portion 160, the force required to move ring
- variable displacement vane pumps utilizing control springs and control pistons, or control springs and pressurized control areas to control the pump and it is instead contemplated that the present invention can be advantageously employed with variable displacement vane pumps utilizing a wide variety of control mechanisms.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/577,755 US7614858B2 (en) | 2004-10-25 | 2005-10-25 | Variable capacity vane pump with force reducing chamber on displacement ring |
DE112005002644T DE112005002644T5 (en) | 2004-10-25 | 2005-10-25 | Vane pump with variable displacement and force reduction chamber on displacement ring |
KR1020077011721A KR101235988B1 (en) | 2004-10-25 | 2005-10-25 | Variable capacity vane pump with force reducing chamber on displacement ring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62176904P | 2004-10-25 | 2004-10-25 | |
US60/621,769 | 2004-10-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006045190A1 true WO2006045190A1 (en) | 2006-05-04 |
Family
ID=36226911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2005/001640 WO2006045190A1 (en) | 2004-10-25 | 2005-10-25 | Variable capacity vane pump with force reducing chamber on displacement ring |
Country Status (4)
Country | Link |
---|---|
US (1) | US7614858B2 (en) |
KR (1) | KR101235988B1 (en) |
DE (1) | DE112005002644T5 (en) |
WO (1) | WO2006045190A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006061326A1 (en) * | 2006-12-22 | 2008-07-03 | Beez, Günther, Dipl.-Ing. | Adjusting device for use in e.g. lubricating oil pump in motor vehicle, has control pressure chambers separately controlled and subjected with pump- or main channel pressure and arranged at circumference of control slide valve |
WO2008124174A1 (en) * | 2007-04-10 | 2008-10-16 | Borgwarner Inc. | Variable displacement dual vane pump |
EP2375073A1 (en) * | 2010-03-31 | 2011-10-12 | Pierburg Pump Technology GmbH | Sealing for the control chamber of a variable displacement lubricant pump |
WO2011150917A2 (en) | 2010-06-04 | 2011-12-08 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Vane pump |
WO2014141013A1 (en) * | 2013-03-13 | 2014-09-18 | Magna Powertrain Inc. | Vane pump with multiple control chambers |
DE102008007491B4 (en) * | 2007-02-06 | 2014-10-30 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Vane pump with variable displacement for pressure control |
WO2014111813A3 (en) * | 2013-01-15 | 2014-12-18 | Stackpole Powertrain International Ulc | Variable displacement pump with multiple pressure chambers |
US9181803B2 (en) | 2004-12-22 | 2015-11-10 | Magna Powertrain Inc. | Vane pump with multiple control chambers |
DE102009037277B4 (en) * | 2009-08-12 | 2016-02-04 | Schwäbische Hüttenwerke Automotive GmbH | Adjustable vacuum pump |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7794217B2 (en) | 2004-12-22 | 2010-09-14 | Magna Powertrain Inc. | Variable capacity vane pump with dual control chambers |
AT502189B1 (en) * | 2005-07-29 | 2007-02-15 | Miba Sinter Holding Gmbh & Co | VANE PUMP |
US8118575B2 (en) * | 2008-04-25 | 2012-02-21 | Magna Powertrain Inc. | Variable displacement vane pump with enhanced discharge port |
KR101020500B1 (en) * | 2009-02-03 | 2011-03-09 | 마그나파워트레인코리아 주식회사 | Oil Pump For Automatic Transmission |
BRPI1010521A2 (en) * | 2009-03-05 | 2016-03-15 | Sst Technologies Inc A Joint Venture Of Magna Powertrain Inc And Shw Gmbh | "fluid pumping system for a power transmission device" |
JP5174720B2 (en) * | 2009-03-09 | 2013-04-03 | 日立オートモティブシステムズ株式会社 | Variable displacement pump |
KR101491175B1 (en) * | 2009-11-23 | 2015-02-06 | 현대자동차주식회사 | Variable Oil Pump |
JP4890604B2 (en) * | 2009-11-25 | 2012-03-07 | 日立オートモティブシステムズ株式会社 | Variable displacement pump |
DE102010023068A1 (en) * | 2010-06-08 | 2011-12-08 | Mahle International Gmbh | Vane pump |
JP5688003B2 (en) * | 2011-12-21 | 2015-03-25 | 日立オートモティブシステムズ株式会社 | Variable displacement oil pump |
GB2517966B (en) * | 2013-09-06 | 2020-05-20 | Concentric Birmingham Ltd | Variable flow hydraulic machine |
CN104675698B (en) * | 2013-11-28 | 2016-07-13 | 王光明 | Piston hinge formula variable displacement vane pump |
JP6289943B2 (en) * | 2014-03-10 | 2018-03-07 | 日立オートモティブシステムズ株式会社 | Variable displacement pump |
CN107000810B (en) | 2014-09-02 | 2021-07-09 | 李东远 | Hydraulic automatic speed changing bicycle |
JP6393172B2 (en) * | 2014-12-01 | 2018-09-19 | 日立オートモティブシステムズ株式会社 | Variable displacement oil pump |
JP2016104967A (en) * | 2014-12-01 | 2016-06-09 | 日立オートモティブシステムズ株式会社 | Variable capacity type oil pump |
US10227979B2 (en) * | 2016-10-19 | 2019-03-12 | Ford Global Technologies, Llc | Vane spacing for a variable displacement oil pump |
US11635076B2 (en) * | 2021-01-22 | 2023-04-25 | Slw Automotive Inc. | Variable displacement vane pump with improved pressure control and range |
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US5752815A (en) * | 1995-09-12 | 1998-05-19 | Mercedes Benz Ag | Controllable vane pump |
US6375435B2 (en) * | 1999-02-17 | 2002-04-23 | Coltec Industries Inc | Static cam seal for variable displacement vane pump |
US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
US6786702B2 (en) * | 2000-02-17 | 2004-09-07 | Goodrich Pump & Engine Control Systems | Fuel metering unit |
US6790013B2 (en) * | 2000-12-12 | 2004-09-14 | Borgwarner Inc. | Variable displacement vane pump with variable target regulator |
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JPS5958185A (en) * | 1982-09-28 | 1984-04-03 | Nachi Fujikoshi Corp | Variable delivery pump |
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JP2788774B2 (en) | 1989-12-27 | 1998-08-20 | トヨタ自動車株式会社 | Variable displacement vane pump |
JP2870600B2 (en) * | 1990-03-20 | 1999-03-17 | トーヨーエイテック株式会社 | Variable displacement vane pump |
JPH03279686A (en) * | 1990-03-27 | 1991-12-10 | Toyoda Mach Works Ltd | Variable delivery vane pump |
DE4319200C1 (en) | 1993-06-09 | 1994-07-21 | Glyco Metall Werke | Multi-stage controller for lubricant pumps with continuously variable delivery volumes |
JPH09273487A (en) * | 1996-04-08 | 1997-10-21 | Jidosha Kiki Co Ltd | Variable displacement type pump |
DE19962554C2 (en) | 1999-12-23 | 2002-05-16 | Daimler Chrysler Ag | Adjustable pump |
-
2005
- 2005-10-25 US US11/577,755 patent/US7614858B2/en not_active Expired - Fee Related
- 2005-10-25 DE DE112005002644T patent/DE112005002644T5/en not_active Withdrawn
- 2005-10-25 KR KR1020077011721A patent/KR101235988B1/en not_active IP Right Cessation
- 2005-10-25 WO PCT/CA2005/001640 patent/WO2006045190A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US5752815A (en) * | 1995-09-12 | 1998-05-19 | Mercedes Benz Ag | Controllable vane pump |
US6375435B2 (en) * | 1999-02-17 | 2002-04-23 | Coltec Industries Inc | Static cam seal for variable displacement vane pump |
US6786702B2 (en) * | 2000-02-17 | 2004-09-07 | Goodrich Pump & Engine Control Systems | Fuel metering unit |
US6790013B2 (en) * | 2000-12-12 | 2004-09-14 | Borgwarner Inc. | Variable displacement vane pump with variable target regulator |
US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
Cited By (20)
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US9534597B2 (en) | 2004-12-22 | 2017-01-03 | Magna Powertrain Inc. | Vane pump with multiple control chambers |
US9181803B2 (en) | 2004-12-22 | 2015-11-10 | Magna Powertrain Inc. | Vane pump with multiple control chambers |
DE102006061326B4 (en) * | 2006-12-22 | 2012-02-16 | Mahle International Gmbh | Positioning device for a volume-adjustable cell pump |
DE102006061326A1 (en) * | 2006-12-22 | 2008-07-03 | Beez, Günther, Dipl.-Ing. | Adjusting device for use in e.g. lubricating oil pump in motor vehicle, has control pressure chambers separately controlled and subjected with pump- or main channel pressure and arranged at circumference of control slide valve |
DE102008007491B4 (en) * | 2007-02-06 | 2014-10-30 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Vane pump with variable displacement for pressure control |
WO2008124174A1 (en) * | 2007-04-10 | 2008-10-16 | Borgwarner Inc. | Variable displacement dual vane pump |
DE102009037277B4 (en) * | 2009-08-12 | 2016-02-04 | Schwäbische Hüttenwerke Automotive GmbH | Adjustable vacuum pump |
EP2375073A1 (en) * | 2010-03-31 | 2011-10-12 | Pierburg Pump Technology GmbH | Sealing for the control chamber of a variable displacement lubricant pump |
WO2011121045A3 (en) * | 2010-03-31 | 2012-06-21 | Pierburg Pump Technology Gmbh | Variable displacement lubricant pump |
CN103221690B (en) * | 2010-06-04 | 2015-11-25 | 欧根·施密特博士仪器和泵制造有限责任公司 | Vane pump |
US8998594B2 (en) | 2010-06-04 | 2015-04-07 | Geraete- Und Pumpenbau Gmbh Dr. Eugen Schmidt | Vane cell pump with vane plate guide crosspieces and synchronization cylinder |
CN103221690A (en) * | 2010-06-04 | 2013-07-24 | 欧根·施密特博士仪器和泵制造有限责任公司 | Vane pump |
DE102010022677A1 (en) | 2010-06-04 | 2011-12-08 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Vane pump |
DE102010022677B4 (en) * | 2010-06-04 | 2016-06-30 | Nidec Gpm Gmbh | Vane pump |
WO2011150917A2 (en) | 2010-06-04 | 2011-12-08 | Geräte- und Pumpenbau GmbH Dr. Eugen Schmidt | Vane pump |
WO2014111813A3 (en) * | 2013-01-15 | 2014-12-18 | Stackpole Powertrain International Ulc | Variable displacement pump with multiple pressure chambers |
US9109597B2 (en) | 2013-01-15 | 2015-08-18 | Stackpole International Engineered Products Ltd | Variable displacement pump with multiple pressure chambers where a circumferential extent of a first portion of a first chamber is greater than a second portion |
WO2014141013A1 (en) * | 2013-03-13 | 2014-09-18 | Magna Powertrain Inc. | Vane pump with multiple control chambers |
CN105074217A (en) * | 2013-03-13 | 2015-11-18 | 麦格纳动力系有限公司 | Vane pump with multiple control chambers |
EP2971779A4 (en) * | 2013-03-13 | 2016-12-07 | Magna Powertrain Usa Inc | Vane pump with multiple control chambers |
Also Published As
Publication number | Publication date |
---|---|
US20090074598A1 (en) | 2009-03-19 |
KR20070084516A (en) | 2007-08-24 |
KR101235988B1 (en) | 2013-02-21 |
US7614858B2 (en) | 2009-11-10 |
DE112005002644T5 (en) | 2007-09-20 |
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