EP2440785A1 - Schmierstoffpumpensystem - Google Patents
SchmierstoffpumpensystemInfo
- Publication number
- EP2440785A1 EP2440785A1 EP10724493A EP10724493A EP2440785A1 EP 2440785 A1 EP2440785 A1 EP 2440785A1 EP 10724493 A EP10724493 A EP 10724493A EP 10724493 A EP10724493 A EP 10724493A EP 2440785 A1 EP2440785 A1 EP 2440785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant pump
- pressure chamber
- lubricant
- pressure
- proportional valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000314 lubricant Substances 0.000 title claims abstract description 118
- 238000002485 combustion reaction Methods 0.000 claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 2
- 239000003921 oil Substances 0.000 description 20
- 238000013016 damping Methods 0.000 description 9
- 230000003993 interaction Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- 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
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/18—Pressure
-
- 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
- F04C2270/24—Level of liquid, e.g. lubricant or cooling liquid
-
- 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
- F04C2270/70—Safety, emergency conditions or requirements
Definitions
- the present invention relates to a map-controlled Schmierstoffpumpensystenn with a lubricant pump for supplying an internal combustion engine with lubricant.
- the invention also relates to a lubricant pump for such a map-controlled lubricant pump system.
- volume-controlled lubricant pumps in internal combustion engines is state of the art, for example, to be able to approximate a flow rate and a pressure to the needs of the respective needs of the internal combustion engine.
- This is usually done by applying an actuating unit within the lubricant pump, such as a control piston or a collar, with an originating from a Hauptölgalehe of the engine oil pressure.
- an actuating unit within the lubricant pump such as a control piston or a collar
- the disadvantage of such a control is that the control is in direct connection of the pressure prevailing in the engine oil pressure, the flow rate, an engine speed, a lubricant temperature and a voltage applied to the actuator spring force.
- the aim of so-called characteristic map controls is the decoupling of said direct influencing variables on the control in order to achieve a control map of the lubricant pump, which can respond to each individual influencing variable, thus coming closer to the needs of the internal combustion engine and at least reduce further drive and power losses.
- proportional valves are used which switch on or off a control oil pressure from the Hauptölgalehe or from an output of the lubricant pump as needed to the actuators. If it comes to controls in such a control loop or to a defect of the proportional valve, this can lead to a shortage of the internal combustion engine and thus to damage the same.
- a kind of emergency control is provided at a higher pressure level in the usual lubricant pumps in order to continue to supply the internal combustion engine in case of failure of the proportional valve with lubricant.
- the lubricant pump does not receive a regulation pressure via the proportional valve and thus promotes the maximum possible flow into the main oil gallery of the internal combustion engine acts and at the same time assumes a position in which the lubricant, ie the oil, the main oil gallery in dependence on the oil pressure to the actuator and can flow out and thus controls the lubricant pump to a desired higher pressure level
- the lubricant supply system is a high variety of parts with associated high assembly, storage and logistics costs.
- the present invention is concerned with the problem of providing a map-controlled lubricant pump system, which operates reliably and at the same time is inexpensive to implement. This problem is solved according to the invention by the subject matters of the independent claims. Advantageous embodiments are the subject of the dependent claims.
- the present invention is based on the general idea of omitting a hitherto customary "second-level valve" by a corresponding design of a lubricant pump in the case of a map-controlled lubricant pump system with a lubricant pump
- a spring-biased actuator such as a ring or a slider arranged, via which a delivery of the lubricant pump, which is usually designed as a cell pump, controllable
- the lubricant pump according to the invention in this case has a first pressure chamber acting on the setting unit, which pressure plate can be acted upon by pressure and dad Adjusted by the adjusting unit against the spring and at least a second in the same way acting on the actuator pressure chamber.
- the second pressure chamber is dimensioned smaller than the first, so that in case of failure of the proportional valve, the lubricant pump is pressurized exclusively via the at least one second pressure chamber and due to their smaller dimension, a higher lubricant pressure, that is, a higher oil pressure generated, so that the internal combustion engine is supplied with lubricant at a higher pressure level when the proportional valve fails.
- a permanently applied lubricant pressure acts on the first pressure chamber, as well as on the at least one second pressure chamber, wherein the ratio of the two pressure chambers and the actuator biasing spring is designed so that the permanently applied lubricant pressure as well as the supplied via the proportional valve lubricant pressure covers the entire map.
- the at least one second permanently impinged pressure chamber is dimensioned so that in case of failure of the proportional valve, so the sole concern of the permanent lubricant pressure at the at least one second pressure chamber, the lubricant pump due to the constant spring counteract force on the actuator continues to work at a higher pressure level and the engine with lubricant, that is supplied in particular with oil.
- the map-controlled lubricant pump system according to the invention operates on a higher equilibrium of forces when the proportional valve fails, which has the effect of reducing the costs of the second-level valve
- the lubricant pump according to the invention can also be used elsewhere, so that the lubricant pump system according to the invention a map control tion of all hydraulically variably controllable lubricant pumps for internal combustion engines with second-level control.
- Map-controlled means that, contrary to the two-stage or multi-stage control, the proportional valve is not "only” added or deactivated, and thus the additional pressure or control chamber is pressurized with control pressure, where the temperature, the speed, the oil pressure, the load case, etc. become The proportional valve is then frequency-modulated (boosted) and, on the basis of the respective position of the proportional valve, brings the actuating unit of the lubricant pump into a specific position which enables the lubricant pump , Flow rate and delivery pressure according to the predetermined "map" represent.
- the control pressures in direct dependence on oil temperature (medium temperature), speed u. the given geometries of the (pressure) chambers. Here only the pressure chambers are added.
- the lubricant pump according to the invention is continuously supplied with control pressure which corresponds to the SLR level.
- An advantage is that the lubricant pump can be controlled with pump output pressure (controlled internally) or with the pressure from the main supply channel and any points of the supply circuit.
- the map control system controls the proportional valve at high frequency and due to the respective position of the proportional valve, another actuating range is provided with pressure to the already existing SLR pressure range and brought the adjustment of the lubricant pump in a certain position, which allows the lubricant pump, flow rate and discharge pressure to represent the given "map".
- 1 shows a lubricant pump system according to the invention
- 2 is a sectional view through a possible embodiment of a lubricant pump
- FIG. 3 is a view as in Fig. 2, but in another embodiment,
- Fig. 4 shows another possible embodiment of the lubricant pump.
- a map-controlled lubricant pump system 1 has a lubricant pump 2 which is designed, for example, as a cell pump and which serves to supply an internal combustion engine 3 with lubricant.
- a filter 4 connected to an outlet side of the lubricant pump 2
- a pressure sensor 5 and a proportional valve 6 are also arranged, the latter for example being able to be designed as a 3/2-way valve.
- the lubricant pump system 1 according to the invention also includes a lubricant reservoir 7 in which the lubricant, for example the oil 8, is collected. Regardless of whether oil 8 is mentioned below, this naturally also includes any other common lubricant.
- an adjustable setting unit 9 is arranged within the lubricant pump 2, via which a delivery rate of the lubricant pump 2 can be regulated, and which is biased by a spring 10.
- an oil pressure acts which acts via a first pressure chamber 11 acting on the setting unit 9 and via at least one second pressure chamber 12, 12 '.
- the at least one second pressure chamber 12, 12 ' is dimensioned smaller than the first pressure chamber 11 and in the presence of two pressure chambers 12, 12', these are dimensioned smaller in total than the First pressure chamber 11. Both the first pressure chamber 11 and the at least one second pressure chamber 12, 12 'is acted upon by a map controlled oil pressure and adjusted depending on the introduced oil pressure, the actuator 9 against the spring force of the spring 10th
- the lubricant pump 2 is pressurized exclusively via the at least one second pressure chamber 12, 12 ', whereby a higher lubricant pressure is generated due to the smaller dimensioning of the at least one second pressure chamber 12, 12', so that the internal combustion engine 3 Even if the proportional valve 6 fails, on the one hand, it is sufficiently supplied with lubricant, but on the other hand, this takes place at a comparatively higher pressure level.
- the setting unit 9 is designed to be pivotable, while according to FIG. 3 it is designed as a translatorically adjustable slide.
- a hitherto required "second-level valve" can be dispensed with, as a result of which fewer parts are produced and mounted, and thus the entire lubricant pump system 1 can be designed more cost-effectively.
- interactions of the now omitted second-level valve can be excluded with the actuator 9, wherein the lubricant pump system 1 according to the invention also in its second-level control, in which only the at least one second pressure chamber 12, 12 'is pressurized, working on a higher balance of forces, which minimizes the influence of internal forces from a pump run set.
- the proportional valve 6 serving to control the lubricant pump 2 in the normal operating state is connected on the input side via a main oil gallery to the internal combustion engine 3 or to the outlet of the lubricant pump 2.
- a lubricant pump 1a has a shaft 2a, on which a rotor 3a is arranged non-rotatably.
- the rotor 3a is operatively connected via a single pendulum 4a with a cage 5a, wherein the cage 5a is guided in a slide 6a.
- the slider 6a in turn is pivotally mounted about a bearing pin 7a and biased by a spring 8a.
- the spring 8a for example a control spring, is supported at one end on the slide 6a and at the other end against a spring counterpart 9a on the housing 10a of the lubricant pump 1a.
- a capacity of the lubricant pump 1a according to the invention can be regulated, for example, by changing the volumes of a pressure chamber 11a and a suction chamber 12a by changing the eccentricity of the rotor 3a to the slider 6a.
- the lubricant pump 1a is designed as a so-called cell pump and is usually used to supply an internal combustion engine, not shown, with lubricant, in particular with oil.
- An adjustment of the slide 6a is effected by means of a hydraulic pressure within a control pressure chamber 14a, wherein an increase in the pressure in the control pressure chamber 14a causes an adjustment of the slide 6a against the spring 8a.
- the slide 6a still separates a damping chamber 13a from a suction chamber 17a, wherein a separation between the control pressure chamber 14a, the damping chamber 13a and the suction chamber 17a via arranged on the slide 6 sealing strips 15a and 15a ', which the slider 6a relative to the housing 10a the lubricant pump 1 a seal.
- connection 16a for example, a connecting channel, to compensate for pressure fluctuations and thus for damping the lubricant pump 1a is provided according to a first variant between the control pressure chamber 14a and the damping chamber 13a.
- the connection 16a can not only be designed as a connecting channel formed in the housing 10a, but also be integrated as a channel in the manner of a fingerschliff or already in the cast housing, between the slide 6a and the housing 10a.
- the connection 16a is shown in FIG. 1 greatly enlarged, so that it is usually designed so small that it develops a throttle effect.
- connection 16a may also be provided between the damping chamber 13a and the suction chamber 17a, wherein this connection 16a' extends within the slide 6a according to the invention and in this case may also be formed as a connecting channel.
- a connection between the damping chamber 13a and the suction chamber 17a alternatively as Freischliff be formed between the slide 6a and the housing 10a, overcoming the sealing strip 15a '.
- control pressure chamber 14a is usually smaller than the damping chamber 13a and is at the same time usually connected on the input side to a main oil gallery of the internal combustion engine.
- a further alternative is to connect a damping volume (lubricant reservoir 18a) mounted outside the housing 10a to one of the volumes in the pump by means of a throttle bore acting like the connection 16a, 16a '.
- connection 16a an overpumping of the oil is achieved from one to the other volume in all embodiments, at the same time there is a throttling whereby the pressure pulsations are reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910024698 DE102009024698A1 (de) | 2009-06-12 | 2009-06-12 | Schmierstoffpumpensystem |
DE102009048320A DE102009048320A1 (de) | 2009-10-05 | 2009-10-05 | Schmierstoffpumpe |
PCT/EP2010/057836 WO2010142611A1 (de) | 2009-06-12 | 2010-06-04 | Schmierstoffpumpensystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2440785A1 true EP2440785A1 (de) | 2012-04-18 |
EP2440785B1 EP2440785B1 (de) | 2014-01-08 |
Family
ID=42561077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10724493.1A Active EP2440785B1 (de) | 2009-06-12 | 2010-06-04 | Schmierstoffpumpensystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US8992184B2 (de) |
EP (1) | EP2440785B1 (de) |
JP (1) | JP5589068B2 (de) |
KR (1) | KR101753419B1 (de) |
CN (1) | CN102459904B (de) |
WO (1) | WO2010142611A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3135913A1 (de) * | 2015-08-28 | 2017-03-01 | MAHLE Filter Systems Japan Corporation | Pumpe mit variabler verdrängung |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010023068A1 (de) * | 2010-06-08 | 2011-12-08 | Mahle International Gmbh | Flügelzellenpumpe |
DE102011004970A1 (de) * | 2011-03-02 | 2012-09-06 | Mahle International Gmbh | Flügelzellenpumpe |
DE102011083278A1 (de) * | 2011-09-23 | 2013-03-28 | Mahle International Gmbh | Schmiermittelsystem |
DE102011086175B3 (de) * | 2011-11-11 | 2013-05-16 | Schwäbische Hüttenwerke Automotive GmbH | Rotationspumpe mit verbesserter Abdichtung |
DE102012210899A1 (de) * | 2012-06-26 | 2014-01-02 | Mahle International Gmbh | Hydraulikfördereinrichtung und Hydrauliksystem |
DE112013004386T5 (de) * | 2012-09-07 | 2015-06-11 | Hitachi Automotive Systems, Ltd. | Ölpumpe mit einer variablen Kapazität und diese verwendendes Ölzuführsystem |
JP6088313B2 (ja) * | 2013-03-28 | 2017-03-01 | 本田技研工業株式会社 | 可変容量型オイルポンプ |
JP2015140670A (ja) * | 2014-01-27 | 2015-08-03 | トヨタ自動車株式会社 | 可変容量形オイルポンプ |
JP6270684B2 (ja) * | 2014-10-03 | 2018-01-31 | トヨタ自動車株式会社 | 油圧制御装置 |
EP3207253A1 (de) * | 2014-10-15 | 2017-08-23 | VHIT S.p.A. | Steuerungssystem zur steuerung einer verdrängerpumpe |
US10030656B2 (en) * | 2014-12-31 | 2018-07-24 | Stackpole International Engineered Products, Ltd. | Variable displacement vane pump with integrated fail safe function |
DE102015101490B4 (de) | 2015-02-02 | 2018-09-13 | Schwäbische Hüttenwerke Automotive GmbH | Verdrängerpumpe mit einem oder mehreren Sintermetallteilen |
JP2017048681A (ja) * | 2015-08-31 | 2017-03-09 | 株式会社マーレ フィルターシステムズ | ポンプ |
DE102016108944A1 (de) * | 2016-05-13 | 2017-11-16 | Joma-Polytec Gmbh | Verstellbare Flügelzellenpumpe |
US11674455B2 (en) * | 2021-03-26 | 2023-06-13 | Hamilton Sundstrand Corporation | Variable displacement pump with active bypass feedback control |
CN114110398B (zh) * | 2021-11-30 | 2023-03-24 | 湖南机油泵股份有限公司 | 一种能减小压力波动的变量机油泵 |
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US4600364A (en) * | 1983-06-20 | 1986-07-15 | Kabushiki Kaisha Komatsu Seisakusho | Fluid operated pump displacement control system |
GB8417148D0 (en) | 1984-07-05 | 1984-08-08 | Hobourn Eaton Ltd | Variable capacity roller-and vane-type pumps |
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EP0851123B1 (de) | 1996-12-23 | 2003-07-09 | LuK Fahrzeug-Hydraulik GmbH & Co. KG | Flügelzellenmaschine, insbesondere Flügelzellenpumpe |
JP3866410B2 (ja) | 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 | 可変容量形ポンプ |
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EP1809905B1 (de) | 2004-05-07 | 2016-08-17 | STT Technologies Inc., A Joint Venture of Magna Powertrain Inc. and SHW GmbH | Zur direkten regelung von verdrängung leitungsdruck verwendende flügelzellenpumpe |
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-
2010
- 2010-06-04 JP JP2012514429A patent/JP5589068B2/ja not_active Expired - Fee Related
- 2010-06-04 US US13/377,463 patent/US8992184B2/en active Active
- 2010-06-04 EP EP10724493.1A patent/EP2440785B1/de active Active
- 2010-06-04 CN CN201080026230.5A patent/CN102459904B/zh active Active
- 2010-06-04 WO PCT/EP2010/057836 patent/WO2010142611A1/de active Application Filing
- 2010-06-04 KR KR1020117031682A patent/KR101753419B1/ko active IP Right Grant
Non-Patent Citations (1)
Title |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3135913A1 (de) * | 2015-08-28 | 2017-03-01 | MAHLE Filter Systems Japan Corporation | Pumpe mit variabler verdrängung |
US10018199B2 (en) | 2015-08-28 | 2018-07-10 | Mahle Filter Systems Japan Corporation | Variable displacement pump |
Also Published As
Publication number | Publication date |
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US8992184B2 (en) | 2015-03-31 |
JP5589068B2 (ja) | 2014-09-10 |
CN102459904A (zh) | 2012-05-16 |
CN102459904B (zh) | 2015-04-01 |
WO2010142611A1 (de) | 2010-12-16 |
KR20120027038A (ko) | 2012-03-20 |
EP2440785B1 (de) | 2014-01-08 |
US20120148423A1 (en) | 2012-06-14 |
JP2012529589A (ja) | 2012-11-22 |
KR101753419B1 (ko) | 2017-07-03 |
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