CN102713296B - Hydraulic-pressure control apparatus - Google Patents
Hydraulic-pressure control apparatus Download PDFInfo
- Publication number
- CN102713296B CN102713296B CN201080058581.4A CN201080058581A CN102713296B CN 102713296 B CN102713296 B CN 102713296B CN 201080058581 A CN201080058581 A CN 201080058581A CN 102713296 B CN102713296 B CN 102713296B
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- pump
- control panel
- oil hydraulic
- control apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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
- 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
Abstract
The present invention relates to a kind of hydraulic-pressure control apparatus, it has control panel device and the hydraulic power transmission device for transmitting hydraulic medium.The invention is characterized in that described hydraulic power transmission device is integrated in described control panel device.
Description
Technical field
The present invention relates to a kind of hydraulic-pressure control apparatus, it has control panel device and the hydraulic power transmission device for transmitting hydraulic medium.
Background technique
In automatic transmission, such as grading automatical speed changer, CVT speed changer or double-clutch speed changer, there is hydraulic-pressure control apparatus, i.e. actuator control apparatus, as 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).Described pump starting structure is the mechanical pump starting structure be connected on internal-combustion engine mostly.
In modern speed changer, this mechanical pump starting structure can supplement motor-pump assembly (i.e. motor and pump).
Oil-servicing facilities is known, does not have machine power pump enough to maintain for speed changer and clutch actuator.Here certainly because the structural type of clutch, as dry clutch, do not need cold oil.
Just should abandon mechanical actuation device in the clutch of wet type operation, thus for this reason required hydraulic power must be provided by motor-drive pump completely in known systems.But the running state now occurred is very different.Therefore, provide the state not only with high volume flow demand and little pressure demand, and there is 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 electric motor/pump assembly (drive unit of speed governing), to form different running statees in oil supply system.
Summary of the invention
Task of the present invention can supply different supply scopes with hydraulic medium in a straightforward manner.
This task has control panel device with a kind of and complete for the hydraulic-pressure control apparatus of the hydraulic power transmission device transmitting hydraulic medium, and wherein, described hydraulic power transmission device is integrated in described control panel device.Described control panel device comprises at least one control panel, and described control panel comprises such as hydraulic channel and the hydraulic interface of hydrovalve.Shared structure space can be utilized best by the arrangement of hydraulic power transmission device according to the present invention in control panel device, cancel hydraulic connecting required between hydraulic-pressure control apparatus and hydraulic power transmission device in addition in this case.
The feature of a preferred embodiment of described hydraulic-pressure control apparatus is, the first oil hydraulic pump is integrated in the first control panel of described control panel device.Described first oil hydraulic pump is used for such as to the actuator system supply hydraulic oil of speed changer in parallel.Described actuator system is preferably provided with pressure reservoir, and described pressure reservoir utilizes described first oil hydraulic pump to fill or load.Described first oil hydraulic pump preferably provides relatively little pressure medium volume flow, certainly has relatively high pressure.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, the second oil hydraulic pump is integrated in the second control panel of described control panel device.Described second oil hydraulic pump is used for such as supplying wet clutch cooling medium, especially cold oil.Described second oil hydraulic pump provides relatively large hydraulic medium volume flow, certainly has relatively low pressure.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, described two oil hydraulic pumps pass through an only motoring.Can cancel needs in addition be used for drive described second oil hydraulic pump second motor.Described motor is preferably mounted at the outside of described first control panel.Described two oil hydraulic pumps are preferably arranged in two control panels of described control panel device completely.Therefore, described oil hydraulic pump is not needed to the structure space added, especially do not need housing.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, described two oil hydraulic pumps are connected connection.Described two oil hydraulic pumps are preferably arranged in described two control panels adjacent to each other.Now, described oil hydraulic pump is preferably arranged for and makes it have common driving running shaft, and it is consistent with the driving running shaft of described motor.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, the clutch of described two oil hydraulic pumps through connecting in driving can be coupled to each other.By the described clutch connected, described two oil hydraulic pumps can connect with described motor, thus it is simultaneously by described motoring.When needed, an oil hydraulic pump in described oil hydraulic pump departs from described motor in driving by means of the described clutch connected.Like this, an oil hydraulic pump is only had in described oil hydraulic pump by described motoring.When described motor departs from, oil hydraulic pump is not had to be driven.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, described control panel arranges the pump case being used for oil hydraulic pump.Shared structure space can be used best thus.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, described two oil hydraulic pumps are embodied as gear pump, especially external gear pump.All pump gears of described two gear pumps are arranged in described control panel.The bearing of described pump gear is integrated in described control panel equally.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, described two oil hydraulic pumps are driven by common pump shaft.Described common pump shaft connects with common pump shaft preferably by Euclidean joiner, namely drives connection.Described Euclidean joiner is preferably placed on the end of described common pump shaft.The clutch that preferred arrangements can be connected on the other end of described pump shaft.
The feature of the further preferred embodiment of described hydraulic-pressure control apparatus is, between described two control panels, arrange intermediate plate, and the pedestal bearing of described first control panel is extended in described second control panel by described intermediate plate.Described pedestal bearing comprises such as pedestal bearing shell, it is fixedly connected with described first control panel, such as be pressed in described first control panel, and be projected in the receiving space for described second oil hydraulic pump, in described second control panel, reserve described receiving space.
Accompanying drawing explanation
Other advantages of the present invention, characteristic sum details obtain from the following description, in described description, describe embodiment in detail with reference to accompanying drawing.In the accompanying drawings:
Fig. 1 is presented at when handling drive clutch through the view according to the first cross section of hydraulic-pressure control apparatus of the present invention;
Fig. 2 is presented at the view through the second cross section of the hydraulic-pressure control apparatus of Fig. 1 when handling drive clutch;
Fig. 3 is presented at same cross section when not handling drive clutch in Fig. 1.
Embodiment
In Fig. 1 to 3, in different cross section Situ and position, display is used for the hydraulic-pressure control apparatus 1 of the speed changer in parallel of automobile.Hydraulic-pressure control apparatus 1 comprises the control panel device 10 with the first control panel 11 and the second control panel 12.An intermediate plate 13 is arranged between two control panels 11 and 12.
Hydraulic power transmission device 14 is integrated in control panel device 10, and hydraulic power transmission device 14 comprises the first oil hydraulic pump 15 and the second oil hydraulic pump 16.Two oil hydraulic pumps 15,16 are driven by unique motor 18.
Motor 18 is arranged on the sidepiece of the first control panel 11 deviating from the second control panel 12.On the sidepiece of the second control panel 12 deviating from the first control panel 11, the receiving space for hydraulic power transmission device 14 is closed in two control panels 11,12 by a closing lid 19 and corresponding Sealing hydraulic seal.
Two oil hydraulic pumps 15,16 can be passed through common pump shaft 20 motor 18 and drive.Common pump shaft 20 extends in two control panels 11 and 12 through intermediate plate 13.An end of pump shaft 20 is permanently connected through Euclidean joiner 22 live axle of ground motor 18.
Two oil hydraulic pumps 15,16 are embodied as external gear pump, and wherein, hydraulic medium, especially hydraulic oil is carried in teeth groove, and is transferred to pressure chamber along control panel inwall from suction chamber.Undesirable backflow of described hydraulic medium is stoped by gear interference of tooth.When described external gear pump runs, suction side forms low pressure, forms superpressure on the pressure side.
Common pump shaft 20 is fixedly attached on the pump gear 24 of the first oil hydraulic pump 15 through transverse bolt 23.The pump gear 24 driven by pump shaft 20 is engaged with the other pump gear 28 of the first oil hydraulic pump 15.The other pump gear 28 of the first oil hydraulic pump 15 is fixedly connected with pump shaft line 30 by other transverse bolt 29.Pump shaft line 30 is identical with pump shaft 20, is rotatably supported in two bearing hole 25,26.
Two pump gears 24,28 are bearing in the first control panel 11 by means of bearing hole 25,26.Two bearing hole 25,26 are configured for the axial running face of pump gear 24,28.In order to compensate gap, at least one seal ring is set.The pressure level of the second oil hydraulic pump 16 is obviously lower than the pressure level of the first oil hydraulic pump 15, and is not directly installed in the bearing hole between intermediate plate 13 and the second control panel 12.
Pedestal bearing 34 is for supporting the second oil hydraulic pump 16, and it comprises pedestal bearing shell, with its end winding support in the first control panel 11.Pedestal bearing shell is preferably pressed in control panel 11, and is projected in the receiving space of the second oil hydraulic pump 16 in the second control panel 12.Drive clutch 35 is arranged on the end deviating from motor 18 of pump shaft 20, and the teeth portion 36 on the end of pump shaft 20 can be permanently connected pump shaft 20.
Drive clutch 35, by form fit, such as, by two noses, is fixedly connected with the pump gear 32 of the second oil hydraulic pump 16 enduringly, and when not controlled clutch 35.Its advantage is not handling drive clutch 35, and then when upright pump gear 32, also have drive clutch 35 and the attached seal ring 37 for sealing load room, do not rotate, and thus produce power loss.In addition, by the lasting form fit between drive clutch 35 and pump gear 32, drive clutch 35 is not placed in pump gear 32 in connection process.
The pump gear 32 of the second oil hydraulic pump 16 engages other pump gear 38, and other pump gear 38 is rotatably supported in the second control panel 12 by means of other pedestal bearing 39.Pedestal bearing 39 comprises pedestal bearing shell, and it is pressed in the first control panel 11 with end, and is projected in the second control panel 12 with the other end.
Display is in the drive clutch 35 of operation state in fig 1 and 2, and wherein, pump shaft 20 connects the pump gear 24 of the first oil hydraulic pump 15 with driving through transverse bolt 23, and the drive clutch 35 through handling connects the pump gear 32 of the second oil hydraulic pump 16 with driving.Drive clutch 35 is handled through hydraulic control signal, and described hydraulic control signal is communicated on drive clutch 35 with hydraulic way through hydraulic channel 40.
When drive clutch 35 not hydraulic operation time, then as shown in Figure 3, settle pump shaft 20 end on teeth portion 36 and the teeth portion 42 complementally formed of drive clutch 35 between being fixedly connected with.In the not operation state of drive clutch 35, do not drive the pump gear 32 of the second oil hydraulic pump 16.Therefore, the first oil hydraulic pump 15 motor 18 is only had to drive.Two oil hydraulic pumps 15 and 16 are not driven when motor 18 is closed.
First two oil hydraulic pumps 15,16 are embodied as external gear pump provides advantage when low temperature, because described external gear pump has less power loss compared with other gear-type.The advantage using Euclidean joiner 22 to provide is can axis between the live axle of balanced motor 18 and pump shaft 20 and radial misalignments.The hydraulic channel that can save additional pump case completely and need in addition in control panel device 10 is fully integratible into by 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 bearing hole
26 bearing hole
28 pump gears
29 transverse bolts
30 pump shaft lines
32 pump gears
34 pedestal bearings
35 drive clutches
36 teeth portion
37 seal rings
38 pump gears
39 pedestal bearings
40 passages
42 teeth portion
Claims (8)
1. a hydraulic-pressure control apparatus, it has control panel device (10) and the hydraulic power transmission device (14) for transmitting hydraulic medium, it is characterized in that,
Described hydraulic power transmission device (14) is integrated in described control panel device (10), described control panel device comprises the first control panel (11) and the second control panel (12), described hydraulic power transmission device (14) comprises the first oil hydraulic pump (15) and the second oil hydraulic pump (16), first oil hydraulic pump (15) is integrated in first control panel (11) of described control panel device (10), and the second oil hydraulic pump (16) is integrated in second control panel (12) of described control panel device (10).
2. hydraulic-pressure control apparatus according to claim 1, is characterized in that,
Described two oil hydraulic pumps (15,16) are driven by common motor (18).
3. hydraulic-pressure control apparatus according to claim 1, is characterized in that,
Described two oil hydraulic pumps (15,16) series connection is connected.
4. hydraulic-pressure control apparatus according to claim 1, is characterized in that,
Described two oil hydraulic pumps (15,16) are coupled to each other by the clutch (35) that can connect in driving.
5. the hydraulic-pressure control apparatus according to any one in claim 1-4, is characterized in that,
Described first control panel (11) makes the pump case for described first oil hydraulic pump (15), or described second control panel (12) makes the pump case for described second oil hydraulic pump (16).
6. the hydraulic-pressure control apparatus according to any one in claim 1-4, is characterized in that,
Described two oil hydraulic pumps (15,16) are embodied as gear pump.
7. the hydraulic-pressure control apparatus according to any one in claim 1-4, is characterized in that,
Described two oil hydraulic pumps (15,16) are driven by common pump shaft (20).
8. hydraulic-pressure control apparatus according to claim 7, is characterized in that,
Between described two control panels (11,12), arrange intermediate plate (13), pedestal bearing (34) is extended to described second control panel (12) from described first control panel (11) by described intermediate plate (13).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009059747.6 | 2009-12-21 | ||
| DE102009059747 | 2009-12-21 | ||
| PCT/DE2010/001456 WO2011076172A2 (en) | 2009-12-21 | 2010-12-13 | Hydraulic control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102713296A CN102713296A (en) | 2012-10-03 |
| CN102713296B true CN102713296B (en) | 2015-11-25 |
Family
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-pressure 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)
| 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)
| 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 |
-
2010
- 2010-12-13 WO PCT/DE2010/001456 patent/WO2011076172A2/en active Application Filing
- 2010-12-13 EP EP10808974.9A patent/EP2516860B1/en not_active Not-in-force
- 2010-12-13 DE DE112010004908T patent/DE112010004908A5/en not_active Withdrawn
- 2010-12-13 DE DE102010054250A patent/DE102010054250A1/en not_active Withdrawn
- 2010-12-13 CN CN201080058581.4A patent/CN102713296B/en not_active Expired - Fee Related
Patent Citations (7)
| 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 |
| CN102713296A (en) | 2012-10-03 |
| WO2011076172A2 (en) | 2011-06-30 |
| DE112010004908A5 (en) | 2012-10-25 |
| DE102010054250A1 (en) | 2011-06-22 |
| EP2516860B1 (en) | 2014-03-12 |
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