DE102009048320A1 - lubricant pump - Google Patents
lubricant pump Download PDFInfo
- Publication number
- DE102009048320A1 DE102009048320A1 DE102009048320A DE102009048320A DE102009048320A1 DE 102009048320 A1 DE102009048320 A1 DE 102009048320A1 DE 102009048320 A DE102009048320 A DE 102009048320A DE 102009048320 A DE102009048320 A DE 102009048320A DE 102009048320 A1 DE102009048320 A1 DE 102009048320A1
- Authority
- DE
- Germany
- Prior art keywords
- lubricant pump
- chamber
- damping
- lubricant
- slide
- 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- Withdrawn
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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
- 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
- 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
- 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
- F04C15/0049—Equalization of pressure pulses
-
- 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
- F04C2/32—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 both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
- F04C2/332—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 both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members with vanes hinged to the outer member and reciprocating with respect to the inner member
-
- 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
- F04C2210/00—Fluid
- F04C2210/14—Lubricant
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/21—Manufacture essentially without removing material by casting
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/14—Pulsations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Die Erfindung betrifft eine Schmierstoffpumpe (1), insbesondere eine Zellenpumpe, zur Versorgung eines Verbrennungsmotors mit Schmierstoff, insbesondere mit Öl, - mit einem darin angeordneten und von einer Feder (8) vorgespannten Schieber (6), über welche eine Förderleistung der Schmierstoffpumpe (1irkenden Regeldruckkammer (14), welche in der Schmierstoffpumpe (1) angeordnet und mit Druck beaufschlagt ist und dadurch den Schieber (6) entgegen der Feder (8) verstellt, - wobei zwischen der Regeldruckkammer (14) und einer Dämpfungskammer (13) eine Verbindung (16) zum Ausgleich von Druckschwankungen und damit zur Dämpfung vorgesehen ist, oder - wobei zwischen der einer Dämpfungskammer (13) und einer Saugkammer (17) eine Verbindung (16') zum Ausgleich von Druckschwankungen und damit zur Dämpfung vorgesehen ist.The invention relates to a lubricant pump (1), in particular a cell pump, for supplying an internal combustion engine with lubricant, in particular oil, with a slide (6) arranged therein and pretensioned by a spring (8), via which a delivery rate of the lubricant pump (1activates) Control pressure chamber (14), which is arranged in the lubricant pump (1) and pressurized and thereby displaces the slide (6) against the spring (8), - with a connection (13) between the control pressure chamber (14) and a damping chamber (13) 16) is provided to compensate for pressure fluctuations and thus for damping, or - a connection (16 ') for compensating for pressure fluctuations and thus for damping is provided between a damping chamber (13) and a suction chamber (17).
Description
Die vorliegende Erfindung betrifft eine Schmierstoffpumpe, insbesondere eine Zellenpumpe, zur Versorgung eines Verbrennungsmotors mit Schmierstoff, beispielsweise Öl.The present invention relates to a lubricant pump, in particular a cell pump, for supplying an internal combustion engine with lubricant, for example oil.
Der Einsatz von mengengeregelten Schmierstoffpumpen in Verbrennungsmotoren ist seit langem Stand der Technik, um beispielsweise eine Fördermenge und einen Druck an den Bedarf der jeweiligen Bedürfnisse des Verbrennungsmotors anpassen zu können. Eine derartige Anpassung erfolgt meist über das Beaufschlagen eines Schiebers innerhalb der Schmierstoffpumpe mit einem aus einer Hauptölgalerie des Verbrennungsmotors stammenden Öldruck. Der Nachteil einer derartigen Steuerung liegt jedoch darin, dass der Schieber aufgrund von starken Druckpulsationen in der Hauptölgalerie des Verbrennungsmotors aufschwingen kann, wodurch unerwünschte Pulsationen und Schwingungen im Bereich der Schmierstoffpumpe hervorgerufen werden können.The use of volume-controlled lubricant pumps in internal combustion engines has long been state of the art, for example, to be able to adapt a delivery rate and pressure to the needs of the respective needs of the internal combustion engine. Such adaptation usually takes place via the application of a slide within the lubricant pump to an oil pressure originating from a main oil gallery of the internal combustion engine. However, the disadvantage of such a control is that the slide can swing open due to strong pressure pulsations in the main oil gallery of the internal combustion engine, whereby undesirable pulsations and vibrations in the area of the lubricant pump can be caused.
Die vorliegende Erfindung beschäftigt sich daher mit dem Problem, eine Schmierstoffpumpe anzugeben, welche insbesondere auf Grund ihrer Konstruktionsweise in der Lage ist derartige Schwingungen bzw. Pulsationen zu dämpfen.The present invention therefore deals with the problem of providing a lubricant pump, which is able to damp such vibrations or pulsations, in particular due to their design.
Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matter of
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, bei einer Schmierstoffpumpe zwischen zwei an sich voneinander getrennten Kammern, beispielsweise einer Regeldruckkammer und einer Dämpfungskammer, eine Verbindung vorzusehen, durch welche Druckschwankungen ausgeglichen und dadurch eine gewisse Dämpfung erreicht werden kann. Innerhalb der Schmierstoffpumpe ist dabei in bekannter Weise ein von einer Feder vorgespannter Schieber angeordnet, über den eine Förderleistung der Schmierstoffpumpe regelbar ist. Auf diesen von der Feder vorgespannten Schieber wirkt ein hydraulischer Druck in der Regeldruckkammer, wobei der Schieber bei steigendem Druck innerhalb der Regeldruckkammer entgegen der Feder verstellt wird. In einer zweiten auf den Schieber wirkenden Druckkammer, die beispielsweise als Dämpfungskammer ausgebildet ist, liegt dabei auch ein hydraulischer Druck an. Zwischen diesen beiden Druckkammern ist nun gemäß einer ersten alternativen Ausführungsform der erfindungsgemäßen Lösung eine kommunizierende Verbindung, beispielsweise in der Art eines Verbindungskanals vorgesehen, wodurch Druckschwankungen und insbesondere Druckpulsationen von einer Druckkammer in die andere weiter gegeben und dadurch ausgeglichen bzw. zumindest gedämpft werden können. Die Verbindung, z. B. in Form einer kleinen Bohrung, wirkt dabei als Dämpfungsdrossel. Das Öl muss durch die Verbindung/Bohrung und wird auch durch die Verbindung/Bohrung hindurch gepresst. Der zumindest ein Verbindungskanal kann dabei als einfach herzustellende Bohrung in einem Gehäuse der Schmierstoffpumpe ausgebildet sein. Alternativ hierzu kann eine Verbindung auch zwischen der Dämpfungskammer und einer Saugkammer angeordnet sein, wobei dann der Verbindungskanal nicht im Gehäuse, sondern vielmehr im Schieber selbst angeordnet ist, was die Herstellung nochmals vereinfacht. Bei einer dritten Alternative kann eine Verbindung auch als angeformter Kanal im Schieber oder im Gehäuse, im Spezialfall sogar als Spalt definiert sein. Der angeformte Kanal kann bereits in den Gussrohformen integriert sein. Bei einer weiteren alternativen Ausführung kann eine kleine geeignete Bohrung auch eines der Volumina, das heißt die beispielsweise die Saugkammer und/oder die Druckkammer, mit einem extern angebrachten Volumen, das Außen am Gehäuse befestigt wird, verbinden.The present invention is based on the general idea, in a lubricant pump between two separate chambers, for example, a control pressure chamber and a damping chamber to provide a connection, compensated by which pressure fluctuations and thereby a certain damping can be achieved. Within the lubricant pump, a slide biased by a spring is arranged in a known manner, via which a delivery rate of the lubricant pump can be regulated. On these biased by the spring slide a hydraulic pressure in the control pressure chamber acts, the slider is adjusted with increasing pressure within the control pressure chamber against the spring. In a second acting on the slide pressure chamber, which is for example designed as a damping chamber, while there is also a hydraulic pressure. Between these two pressure chambers, according to a first alternative embodiment of the solution according to the invention, a communicating connection is provided, for example in the manner of a connecting channel, whereby pressure fluctuations and in particular pressure pulsations can be passed on from one pressure chamber to the other and thereby compensated or at least damped. The compound, for. B. in the form of a small hole, acts as a damping throttle. The oil must pass through the connection / bore and is also pressed through the connection / bore. The at least one connecting channel can be formed as a simple bore to be produced in a housing of the lubricant pump. Alternatively, a connection between the damping chamber and a suction chamber may be arranged, in which case the connecting channel is not arranged in the housing, but rather in the slider itself, which further simplifies the production. In a third alternative, a connection can also be defined as a molded channel in the slide or in the housing, in the special case even as a gap. The molded channel can already be integrated in the Gussrohformen. In a further alternative embodiment, a small suitable bore may also connect one of the volumes, i.e., for example, the suction chamber and / or the pressure chamber, to an externally mounted volume which is externally attached to the housing.
Durch die erfindungsgemäß vorgesehene Verbindung kann somit ein Dämpfer geschaffen werden, der die in der Schmierstoffpumpe auftretenden Schwingungen bzw. Pulsationen weitgehend dämpft. Selbstverständlich kann dabei alternativ zu der Ausführung der Verbindung als Verbindungskanal auch eine Art Freischliff im Bereich zwischen dem Schieber und dem Gehäuse der Schmierstoffpumpe vorgesehen sein, der ebenfalls einen Druckausgleich ermöglicht und dadurch eine schwingungs- und pulsationsdämpfende Wirkung entfaltet, indem dieser beispielsweise die Dämpfungskammer mit der Regeldruckkammer oder mit der Saugkammer kommunizierend verbindet. Der Durchmesser der Verbindung als Bohrung oder Kanal sollte möglichst klein sein damit eine effektive Dämpfung erreicht wird, jedoch sollte der Durchmesser auch nicht zu klein sein, da sich sonst das Ansprechverhalten der Pumpe ändert. Ziel ist es dabei die Schwingungen des Schiebers zu dämpfen.By virtue of the connection provided according to the invention, a damper can thus be provided which largely damps the vibrations or pulsations occurring in the lubricant pump. Of course, it may alternatively be provided as a connection channel as a connection channel also a kind of freischliff in the area between the slide and the housing of the lubricant pump, which also allows pressure equalization and thereby unfolds a vibration and pulsation damping effect by this example, the damping chamber with the Control pressure chamber or communicating with the suction chamber connects. The diameter of the connection as a bore or channel should be as small as possible so that an effective damping is achieved, however, the diameter should not be too small, otherwise the response of the pump changes. The aim is to dampen the vibrations of the slider.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus der Zeichnung und aus der zugehörigen Figurenbeschreibung anhand der Zeichnung.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawing and from the associated description of the figures with reference to the drawing.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert. Die einzige
Entsprechend der
Ein Verstellen des Schiebers
Erfindungsgemäß ist nun entsprechend einer ersten Variante zwischen der Regeldruckkammer
Beiden Varianten ist dabei gemein, dass eventuell auftretende Druckschwankungen bzw. Druckpulsationen durch die Verbindung
Eine weitere Alternative ist es, mittels einer Drosselbohrung, die wie die Verbindung
Durch die Verbindung
Claims (6)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009048320A DE102009048320A1 (en) | 2009-10-05 | 2009-10-05 | lubricant pump |
PCT/EP2010/057836 WO2010142611A1 (en) | 2009-06-12 | 2010-06-04 | Lubricant pump system |
EP10724493.1A EP2440785B1 (en) | 2009-06-12 | 2010-06-04 | Lubricant pump system |
JP2012514429A JP5589068B2 (en) | 2009-06-12 | 2010-06-04 | Lubricating oil pump system and lubricating oil pump |
CN201080026230.5A CN102459904B (en) | 2009-06-12 | 2010-06-04 | Lubricant pump system |
KR1020117031682A KR101753419B1 (en) | 2009-06-12 | 2010-06-04 | Lubricant pump system |
US13/377,463 US8992184B2 (en) | 2009-06-12 | 2010-06-04 | Lubricant pump system |
EP10183716A EP2312162B1 (en) | 2009-10-05 | 2010-09-30 | Lubricant pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009048320A DE102009048320A1 (en) | 2009-10-05 | 2009-10-05 | lubricant pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009048320A1 true DE102009048320A1 (en) | 2011-04-07 |
Family
ID=43242554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009048320A Withdrawn DE102009048320A1 (en) | 2009-06-12 | 2009-10-05 | lubricant pump |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2312162B1 (en) |
DE (1) | DE102009048320A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013221864A1 (en) | 2013-10-28 | 2015-04-30 | Magna Powertrain Ag & Co. Kg | pump control |
DE102014205630A1 (en) * | 2014-03-26 | 2015-10-01 | Mahle International Gmbh | lubricant system |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4437819A (en) * | 1981-06-06 | 1984-03-20 | Zahnradfabrik Friedrichshafen, Ag | Controllable vane pump |
DE4231690A1 (en) * | 1992-09-22 | 1994-03-24 | Walter Schopf | Tuner gear pump with outer gear rotor in housing - has outer rotor fixing, bearing, and positioning members providing movement freedom and positioning for outer rotor |
CN2436689Y (en) * | 2000-06-08 | 2001-06-27 | 崔勇达 | High-performance double-action hydraulic vane pump |
EP0851123B1 (en) * | 1996-12-23 | 2003-07-09 | LuK Fahrzeug-Hydraulik GmbH & Co. KG | Vane pump |
WO2005108792A1 (en) * | 2004-05-07 | 2005-11-17 | Tesma International Inc. | Vane pump using line pressure to directly regulate displacement |
DE102005050216A1 (en) * | 2005-10-20 | 2007-04-26 | Zf Lenksysteme Gmbh | Vane-cell pump used in vehicles for preparing hydraulic energy for a power-assisted steering system comprises a housing, a rotor, a ring enclosing the rotor, operating chambers, operating chamber connections and adjusting chambers |
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 |
JP2009036137A (en) * | 2007-08-03 | 2009-02-19 | Hitachi Ltd | Variable displacement vane pump |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8417148D0 (en) * | 1984-07-05 | 1984-08-08 | Hobourn Eaton Ltd | Variable capacity roller-and vane-type pumps |
JP3866410B2 (en) * | 1998-04-23 | 2007-01-10 | ユニシア ジェーケーシー ステアリングシステム株式会社 | Variable displacement pump |
US7862306B2 (en) * | 2007-02-06 | 2011-01-04 | Gm Global Technology Operations, Inc. | Pressure regulating variable displacement vane pump |
-
2009
- 2009-10-05 DE DE102009048320A patent/DE102009048320A1/en not_active Withdrawn
-
2010
- 2010-09-30 EP EP10183716A patent/EP2312162B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4437819A (en) * | 1981-06-06 | 1984-03-20 | Zahnradfabrik Friedrichshafen, Ag | Controllable vane pump |
DE4231690A1 (en) * | 1992-09-22 | 1994-03-24 | Walter Schopf | Tuner gear pump with outer gear rotor in housing - has outer rotor fixing, bearing, and positioning members providing movement freedom and positioning for outer rotor |
EP0851123B1 (en) * | 1996-12-23 | 2003-07-09 | LuK Fahrzeug-Hydraulik GmbH & Co. KG | Vane pump |
CN2436689Y (en) * | 2000-06-08 | 2001-06-27 | 崔勇达 | High-performance double-action hydraulic vane pump |
WO2005108792A1 (en) * | 2004-05-07 | 2005-11-17 | Tesma International Inc. | Vane pump using line pressure to directly regulate displacement |
DE102005050216A1 (en) * | 2005-10-20 | 2007-04-26 | Zf Lenksysteme Gmbh | Vane-cell pump used in vehicles for preparing hydraulic energy for a power-assisted steering system comprises a housing, a rotor, a ring enclosing the rotor, operating chambers, operating chamber connections and adjusting chambers |
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 |
JP2009036137A (en) * | 2007-08-03 | 2009-02-19 | Hitachi Ltd | Variable displacement vane pump |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013221864A1 (en) | 2013-10-28 | 2015-04-30 | Magna Powertrain Ag & Co. Kg | pump control |
DE102014205630A1 (en) * | 2014-03-26 | 2015-10-01 | Mahle International Gmbh | lubricant system |
Also Published As
Publication number | Publication date |
---|---|
EP2312162A1 (en) | 2011-04-20 |
EP2312162B1 (en) | 2012-09-26 |
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