CN102713296A - Hydraulic control apparatus - Google Patents

Hydraulic control apparatus Download PDF

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Publication number
CN102713296A
CN102713296A CN2010800585814A CN201080058581A CN102713296A CN 102713296 A CN102713296 A CN 102713296A CN 2010800585814 A CN2010800585814 A CN 2010800585814A CN 201080058581 A CN201080058581 A CN 201080058581A CN 102713296 A CN102713296 A CN 102713296A
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CN
China
Prior art keywords
hydraulic
pump
control panel
control apparatus
oil hydraulic
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
Application number
CN2010800585814A
Other languages
Chinese (zh)
Other versions
CN102713296B (en
Inventor
U·巴斯蒂安
M·格雷特勒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN102713296A publication Critical patent/CN102713296A/en
Application granted granted Critical
Publication of CN102713296B publication Critical patent/CN102713296B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • 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
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • F01C21/104—Stators; Members defining the outer boundaries of the working chamber
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • 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
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • F04C14/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable
    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0073—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Transmission Device (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Jigs For Machine Tools (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention relates to a hydraulic control device having a control plate arrangement and a hydraulic transmission arrangement for transmitting a hydraulic medium. The invention is characterized in that the hydraulic transmission device is integrated into the control panel device.

Description

Hydraulic-pressure control apparatus
Technical field
The present invention relates to a kind of hydraulic-pressure control apparatus, it has control panel device and the hydraulic pressure transmitting set that is used to transmit hydraulic medium.
Background technique
In automatic transmission; For example grading automatical speed changer, CVT speed changer or double-clutch speed changer have hydraulic-pressure control apparatus; It is the actuator control apparatus; Like clutch actuator control apparatus or switch actuator control apparatus and the supply of cold oil supply/lubricant oil, need oil-servicing facilities (great majority are the pumps with pump starting structure).Said pump starting structure is the mechanical pump starting structure that is connected on the internal-combustion engine mostly.
In the speed changer, this mechanical pump starting structure can replenish motor-pump assembly (being motor and pump) in modern times.
Oil-servicing facilities is known, does not have the machine power pump enough to keep for speed changer and clutch actuator.Here certainly because the structural type of clutch like dry clutch, does not need cold oil.
Just in the clutch of wet type operation, should abandon mechanical actuation device, thereby in known system, must by motor-drive pump needed for this reason hydraulic power be provided fully.But the running state that occur this moment is very different.Therefore, the state that not only has high volume flow demand and little pressure demand is provided, and has had high pressure demand and low volume flow demand.This diverse boundary conditions needs very large motor (cost, weight, car load power supply load) in conventional motor/pump assembly (drive unit of speed governing), so that in oil supply system, form different operation states.
Summary of the invention
Task of the present invention is to supply with different supply scopes with hydraulic medium with simple mode.
This task is with a kind of hydraulic-pressure control apparatus completion that has the control panel device and be used to transmit the hydraulic pressure transmitting set of hydraulic medium, and wherein, said hydraulic pressure transmitting set is integrated in the said control panel device.Said control panel device comprises at least one control panel, and said control panel comprises hydraulic channel and the hydraulic interface that for example is used for hydrovalve.Can utilize shared structure space best through the arrangement of hydraulic pressure transmitting set according to the present invention in the control panel device, cancel needed hydraulic pressure connection between hydraulic-pressure control apparatus and hydraulic pressure transmitting set in addition in this case.
A preferred embodiment of said hydraulic-pressure control apparatus is characterised in that first oil hydraulic pump is integrated in first control panel of said control panel device.Said first oil hydraulic pump is used for for example supplying with hydraulic oil to the actuator system of parallelly connected speed changer.Said actuator system preferably is provided with pressure reservoir, and said pressure reservoir utilizes said first oil hydraulic pump to fill or load.Said first oil hydraulic pump preferably provides relatively little pressure medium volume flow, has high relatively pressure certainly.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that second oil hydraulic pump is integrated in second control panel of said control panel device.Said second oil hydraulic pump is used for for example supplying with wet clutch cooling medium, especially cold oil.Said second oil hydraulic pump provides big relatively hydraulic medium volume flow, has low relatively pressure certainly.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that said two oil hydraulic pumps pass through only motoring.Can cancel and in addition to be used for driving said second oil hydraulic pump, second motor.Said motor is preferably mounted at the outside of said first control panel.Said two oil hydraulic pumps preferably are arranged in two control panels of said control panel device fully.Therefore, do not need the additional structural space, especially do not need housing for said oil hydraulic pump.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that, the connection of being connected of said two oil hydraulic pumps.Said two oil hydraulic pumps preferably are arranged in said two control panels adjacent to each other.At this moment, said oil hydraulic pump is preferably arranged for and makes it have common rotary driving axle, and it is consistent with the rotary driving axle of said motor.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that said two oil hydraulic pumps can be coupled to each other through the clutch that can connect aspect driving.Through the said clutch of connecting, said two oil hydraulic pumps can connect with said motor, thereby it is simultaneously through said motoring.When needed, an oil hydraulic pump in the said oil hydraulic pump is breaking away from said motor aspect the driving by means of the said clutch of connecting.Like this, has only an oil hydraulic pump through said motoring in the said oil hydraulic pump.When said motor breaks away from, there is not oil hydraulic pump to be driven.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that said control panel is provided for the pump case of oil hydraulic pump.Can use shared structure space best thus.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that said two oil hydraulic pumps are embodied as gear pump, especially external gear pump.All pump gears of said two gear pumps are arranged in the said control panel.The bearing of said pump gear is integrated in the said control panel equally.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that said two oil hydraulic pumps drive through common pump shaft.Said common pump shaft preferably connects with common pump shaft through the Euclidean joiner, promptly drives to connect.Said Euclidean joiner preferred arrangements is on the end of said common pump shaft.The clutch that preferred arrangements can be connected on the other end of said pump shaft.
The further preferred embodiment of said hydraulic-pressure control apparatus is characterised in that, between said two control panels, arranges intermediate plate, and the pedestal bearing of said first control panel extends in said second control panel through said intermediate plate.Said pedestal bearing comprises for example pedestal bearing shell; It is fixedly connected with said first control panel; For example be pressed in said first control panel, and be projected into the admittance space that is used for said second oil hydraulic pump, in said second control panel, reserve said admittance space.
Description of drawings
Other advantages of the present invention, characteristic and details obtain from the following description, in said description, describe embodiment in detail with reference to accompanying drawing.In the accompanying drawings:
Fig. 1 is presented at and passes the view according to first cross section of hydraulic-pressure control apparatus of the present invention when handling drive clutch;
Fig. 2 is presented at the view in second cross section of the hydraulic-pressure control apparatus that passes Fig. 1 when handling drive clutch;
Fig. 3 is presented at the same cross section among Fig. 1 when not handling drive clutch.
Embodiment
In Fig. 1 to 3, in different cross section Situ and position, show the hydraulic-pressure control apparatus 1 of the parallelly connected speed changer that is used for automobile.Hydraulic-pressure control apparatus 1 comprises the control panel device 10 with first control panel 11 and second control panel 12.Between two control panels 11 and 12, arrange an intermediate plate 13.
Hydraulic pressure transmitting set 14 is integrated in the control panel device 10, and hydraulic pressure transmitting set 14 comprises first oil hydraulic pump 15 and second oil hydraulic pump 16.Two oil hydraulic pumps 15,16 drive through unique motor 18.
Motor 18 is installed on the sidepiece of first control panel 11 that deviates from second control panel 12.On the sidepiece of second control panel 12 that deviates from first control panel 11, the admittance space that is used for hydraulic pressure transmitting set 14 through a closing lid 19 and corresponding Sealing hydraulic seal close at two control panels 11,12.
Two oil hydraulic pumps 15,16 can drive through a common pump shaft 20 usefulness motor 18.Common pump shaft 20 passes intermediate plate 13 and extends in two control panels 11 and 12.An end of pump shaft 20 through Euclidean joiner 22 be permanently connected ground motor 18 live axle.
Two oil hydraulic pumps 15,16 are embodied as external gear pump, wherein, hydraulic medium, especially hydraulic oil is carried in the teeth groove, and is transferred to the pressure chamber from suction chamber along the control panel inwall.Stop undesirable backflow of said hydraulic medium through the gear interference of tooth.When said external gear pump moves, on the suction side, form low pressure, on the pressure side, form superpressure.
Common pump shaft 20 is fixedly attached on the pump gear 24 of first oil hydraulic pump 15 through transverse bolt 23.Mesh through the pump gear 24 of pump shaft 20 drivings and the other pump gear 28 of first oil hydraulic pump 15.The other pump gear 28 of first oil hydraulic pump 15 is fixedly connected pump shaft line 30 through other transverse bolt 29.Pump shaft line 30 is identical with pump shaft 20, is rotatably supported in two support holes 25,26.
Two pump gears 24,28 are bearing in first control panel 11 by means of support holes 25,26.Two support holes 25,26 are configured for the axial running face of pump gear 24,28.In order to compensate the slit, at least one seal ring is set.The pressure level of second oil hydraulic pump 16 is obviously lower than the pressure level of first oil hydraulic pump 15, and is not directly installed in the support holes between the intermediate plate 13 and second control panel 12.
Pedestal bearing 34 is used to support second oil hydraulic pump 16, and it comprises the pedestal bearing shell, uses its end to be fixed in first control panel 11.The pedestal bearing shell preferably is pressed in the control panel 11, and is projected in the admittance space of second oil hydraulic pump 16 in second control panel 12.Drive clutch 35 is arranged on the end that deviates from motor 18 of pump shaft 20, the pump shaft 20 that can be permanently connected of the tooth portion 36 on the end of pump shaft 20.
Drive clutch 35 for example through two noses, is fixedly connected the pump gear 32 of second oil hydraulic pump 16 through form fit enduringly, and when controlled clutch 35 not.Its advantage is not handle drive clutch 35, and then when upright pump gear 32, also has drive clutch 35 and the attached seal ring 37 that is used for the sealing load chamber, does not rotate, and thereby produces power loss.In addition, through the lasting form fit between drive clutch 35 and the pump gear 32, drive clutch 35 does not place pump gear 32 in the connection process.
The other pump gear 38 of pump gear 32 engagements of second oil hydraulic pump 16, other pump gear 38 is rotatably supported in second control panel 12 by means of other pedestal bearing 39.Pedestal bearing 39 comprises the pedestal bearing shell, and it is pressed in first control panel 11 with the end, and is projected in second control panel 12 with the other end.
In Fig. 1 and 2, show the drive clutch 35 that is in operation state, wherein, pump shaft 20 process transverse bolts 23 connect the pump gear 24 of first oil hydraulic pump 15 drivingly, connect the pump gear 32 of second oil hydraulic pump 16 drivingly through the drive clutch of handling 35.Drive clutch 35 is handled through hydraulic control signal, and said hydraulic control signal is communicated on the drive clutch 35 with hydraulic way through hydraulic channel 40.
When drive clutch 35 not during hydraulic operation, then as shown in Figure 3, settle the fixed connection between the tooth portion 42 that complementally constitutes of tooth portion 36 and drive clutch 35 on the end of pump shaft 20.In the not operation state of drive clutch 35, do not drive the pump gear 32 of second oil hydraulic pump 16.Therefore, have only first oil hydraulic pump, 15 usefulness motor 18 to drive., motor 18 do not drive two oil hydraulic pumps 15 and 16 when being closed.
Two oil hydraulic pumps 15,16 are embodied as external gear pump at first provides advantage when low temperature, have littler power loss because said external gear pump is compared with other gear-type.The advantage of using Euclidean joiner 22 to provide be can balanced motor 18 live axle and pump shaft 20 between axially and radial misalignments.Be fully integratible into the hydraulic channel that can save additional pump case in the control panel device 10 fully and need in addition through two oil hydraulic pumps 15,16.
Reference numerals list
1 hydraulic-pressure control apparatus
10 control panel devices
11 control panels
12 control panels
13 intermediate plates
14 transmitting sets
15 first oil hydraulic pumps
16 second oil hydraulic pumps
18 motor
19 closing lids
20 pump shafts
22 Euclidean joiners
23 transverse bolts
24 pump gears
25 support holes
26 support holes
28 pump gears
29 transverse bolts
30 pump shaft lines
32 pump gears
34 pedestal bearings
35 drive clutches
36 tooth portions
37 seal rings
38 pump gears
39 pedestal bearings
40 passages
42 tooth portions

Claims (10)

1. hydraulic-pressure control apparatus, it has control panel device (10) and is used to transmit the hydraulic pressure transmitting set (14) of hydraulic medium, it is characterized in that,
Said hydraulic pressure transmitting set (14) is integrated in the said control panel device (10).
2. hydraulic-pressure control apparatus according to claim 1 is characterized in that,
First oil hydraulic pump (15) is integrated in first control panel (11) of said control panel device (10).
3. hydraulic-pressure control apparatus according to claim 2 is characterized in that,
Second oil hydraulic pump (16) is integrated in second control panel (12) of said control panel device (10).
4. hydraulic-pressure control apparatus according to claim 3 is characterized in that,
Said two oil hydraulic pumps (15,16) drive through common motor (18).
5. according to claim 3 or 4 described hydraulic-pressure control apparatus, it is characterized in that,
Said two oil hydraulic pumps (15,16) series connection is connected.
6. according to any described hydraulic-pressure control apparatus among the claim 3-5, it is characterized in that,
Said two oil hydraulic pumps (15,16) are coupled to each other through the clutch (35) that can connect aspect driving.
7. according to any described hydraulic-pressure control apparatus among the claim 3-6, it is characterized in that,
Said control panel (11,12) is processed the pump case that is used for said oil hydraulic pump (15,16).
8. according to any described hydraulic-pressure control apparatus among the claim 3-7, it is characterized in that,
Said two oil hydraulic pumps (15,16) are embodied as gear pump, especially external gear pump.
9. according to any described hydraulic-pressure control apparatus among the claim 3-8, it is characterized in that,
Said two oil hydraulic pumps (15,16) drive through common pump shaft (20).
10. hydraulic-pressure control apparatus according to claim 9 is characterized in that,
Between said two control panels (11,12), arrange intermediate plate (13), pedestal bearing (34) through said intermediate plate (13) from said first control panel (11) extends in fact second control panel (12).
CN201080058581.4A 2009-12-21 2010-12-13 Hydraulic control apparatus Expired - Fee Related CN102713296B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009059747 2009-12-21
DE102009059747.6 2009-12-21
PCT/DE2010/001456 WO2011076172A2 (en) 2009-12-21 2010-12-13 Hydraulic control

Publications (2)

Publication Number Publication Date
CN102713296A true CN102713296A (en) 2012-10-03
CN102713296B CN102713296B (en) 2015-11-25

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ID=44196171

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080058581.4A Expired - Fee Related CN102713296B (en) 2009-12-21 2010-12-13 Hydraulic control apparatus

Country Status (4)

Country Link
EP (1) EP2516860B1 (en)
CN (1) CN102713296B (en)
DE (2) DE112010004908A5 (en)
WO (1) WO2011076172A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012214291A1 (en) 2011-09-14 2013-03-14 Schaeffler Technologies AG & Co. KG Plate construction-type hydraulic controller for use in e.g. continuously variable transmission, has intermediate element surface provided with elevations that are form-fit connected with recesses, which are provided in or at control plate
DE102012216122A1 (en) 2011-10-10 2013-04-11 Schaeffler Technologies AG & Co. KG Fluid conveying device e.g. double external low pressure gear pump for conveying hydraulic oil, has pair of gears exhibiting same axle distance and different gear geometries to provide different pressures and/or volumetric flows
DE102013203255A1 (en) 2012-03-12 2013-09-12 Schaeffler Technologies AG & Co. KG Fluid control assembly used in hydraulically operated automatic transmission, has jet pump which is partially integrated in control plate arrangement, and drive unit of jet pump is mounted in control plate arrangement
DE102017223675B4 (en) 2017-12-22 2023-01-26 Eckerle Technologies GmbH fluid delivery device
DE102019107961A1 (en) 2019-03-28 2020-10-01 Schaeffler Technologies AG & Co. KG External gear pump
DE102019133966A1 (en) 2019-12-11 2021-06-17 Schaeffler Technologies AG & Co. KG Hydraulic pump actuator driven by an electric motor
WO2022111757A1 (en) * 2020-11-24 2022-06-02 Schaeffler Technologies AG & Co. KG Gear pump
DE102021110892B3 (en) 2021-04-28 2022-09-01 Schaeffler Technologies AG & Co. KG Electric motor driven hydraulic pump actuator
DE102021116460A1 (en) * 2021-06-25 2022-12-29 Bühler Motor GmbH Bearing arrangement for a pump motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903814A (en) * 1959-07-30 1962-08-22 Vickers Armstrongs Ltd Improvements in or relating to gear pumps and motors
US3502033A (en) * 1967-12-23 1970-03-24 Barmag Barmer Maschf Gear pump
JPH09512087A (en) * 1994-04-22 1997-12-02 ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフト Hydraulic switching device for multi-stage transmission for vehicles
CN1420278A (en) * 2002-12-11 2003-05-28 涂雪龙 Gear pump
CN2906137Y (en) * 2006-05-17 2007-05-30 胡远祥 Improved external gear oil pump
CN101454572A (en) * 2006-05-30 2009-06-10 Trw汽车股份有限公司 Gear pump, in particular for a steering servo unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB903814A (en) * 1959-07-30 1962-08-22 Vickers Armstrongs Ltd Improvements in or relating to gear pumps and motors
US3502033A (en) * 1967-12-23 1970-03-24 Barmag Barmer Maschf Gear pump
JPH09512087A (en) * 1994-04-22 1997-12-02 ツェットエフ、フリードリッヒスハーフェン、アクチエンゲゼルシャフト Hydraulic switching device for multi-stage transmission for vehicles
US5810691A (en) * 1994-04-22 1998-09-22 Zf Friedrichshafen Ag Hydraulic changing device for a multi-ratio vehicle transmission
CN1420278A (en) * 2002-12-11 2003-05-28 涂雪龙 Gear pump
CN2906137Y (en) * 2006-05-17 2007-05-30 胡远祥 Improved external gear oil pump
CN101454572A (en) * 2006-05-30 2009-06-10 Trw汽车股份有限公司 Gear pump, in particular for a steering servo unit

Also Published As

Publication number Publication date
WO2011076172A3 (en) 2012-08-02
EP2516860A2 (en) 2012-10-31
DE112010004908A5 (en) 2012-10-25
CN102713296B (en) 2015-11-25
EP2516860B1 (en) 2014-03-12
WO2011076172A2 (en) 2011-06-30
DE102010054250A1 (en) 2011-06-22

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