EP3536956A1 - Unterstützungstaschen - Google Patents

Unterstützungstaschen Download PDF

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Publication number
EP3536956A1
EP3536956A1 EP19161045.0A EP19161045A EP3536956A1 EP 3536956 A1 EP3536956 A1 EP 3536956A1 EP 19161045 A EP19161045 A EP 19161045A EP 3536956 A1 EP3536956 A1 EP 3536956A1
Authority
EP
European Patent Office
Prior art keywords
pocket
rotary pump
peripheral wall
delivery chamber
outlet
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.)
Pending
Application number
EP19161045.0A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gerd Jäggle
Moritz Raatschen
Michael Ehringer
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.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive GmbH
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
Application filed by Schwaebische Huettenwerke Automotive GmbH filed Critical Schwaebische Huettenwerke Automotive GmbH
Publication of EP3536956A1 publication Critical patent/EP3536956A1/de
Pending legal-status Critical Current

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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
    • F04C2/10—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
    • F04C2/102—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 the two members rotating simultaneously around their respective axes
    • 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
    • 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
    • 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
    • F04C15/0088—Lubrication
    • 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
    • F04C2/084—Toothed wheels
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/54—Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors

Definitions

  • the invention relates to a rotary pump having a housing, which has a delivery chamber with an inlet for a fluid on a suction side of the rotary pump and an outlet for the fluid on a pressure side of the pump.
  • Centrally mounted in the delivery chamber are an outer rotor and eccentrically an inner rotor, which together form delivery cells in order to convey the fluid from the suction side to the delivery side.
  • the outer rotor includes an outer peripheral wall which is slidably supported on an inner peripheral wall of the delivery space, which is formed in particular by the housing.
  • Rotary pumps with external rotors which are slidably mounted on an inner circumferential wall of a delivery chamber, may have start-up problems, especially after a longer service life, when the outer rotor rests with its outer circumferential surface essentially on the entire surface of the inner peripheral wall of the delivery chamber of the rotary pump.
  • the adhesive and / or frictional forces between the outer peripheral surface of the outer rotor and the inner peripheral surface may be so large that at the start of the pump initially no or very little fluid is conveyed. This can lead to damage to the pump and / or aggregates that are to be supplied with the fluid that is pumped by the pump, to their destruction.
  • a rotary pump comprising a housing having a delivery space having an inlet for a fluid on a suction side of the rotary pump and an outlet for the fluid on a pressure side of the rotary pump.
  • the rotary pump further comprises an inner rotor, which is arranged eccentrically in the delivery chamber, and an outer rotor, which is arranged centrally in the delivery chamber and forms with the inner rotor conveyor cells, wherein the outer rotor is slidably mounted with its outer peripheral wall on an inner peripheral wall of the delivery chamber and preferably learns from this leadership.
  • the inner peripheral wall of the delivery chamber and / or the outer peripheral wall of the outer rotor has / have at least one pocket or a support pocket.
  • the outer peripheral wall of the outer rotor has no contact with the inner circumferential wall of the delivery chamber of the rotary pump. This means that in the region of the pocket, the outer peripheral wall of the outer rotor and the inner peripheral wall of the delivery chamber are not sealingly against each other, nor there is a guide of the outer rotor through the inner peripheral wall, in particular through the housing takes place.
  • the rotary pump may in particular be an internal gear pump or a pendulum slide pump.
  • the rotary pump is preferably designed as a lubricating oil pump of a motor vehicle, in particular for lubricating and / or cooling an internal combustion engine of the motor vehicle.
  • the pocket can thus be arranged on the outer rotor or on the inner peripheral wall of the delivery chamber, in particular of the housing, or have a radial and axial extent dimensioned such that there is no direct connection between the pocket and the outlet. Preferably, there is no direct connection, such as a channel or groove, connecting the bag to the outlet.
  • the terms “axial” and “radial” are particularly related to the axis of rotation of the inner rotor and / or outer rotor, so that the term “axially” in particular denotes a direction which is parallel or coaxial with the axis of rotation. Further, the term “radial” refers in particular to a direction which is perpendicular to the axis of rotation.
  • a “radial extent” is to be understood in particular an extension along or parallel to a radial direction.
  • An “axial extent” is to be understood in particular an extent along or parallel to an axial direction.
  • a supply of the bag with the fluid from the pumping chamber is preferably carried out only by leakage.
  • sealing gaps for example, an axial sealing gap between an end face of the outer rotor and an axial wall of the housing, and / or the dimensioning of the bag, for example, the axial and / or radial extent of the bag accordingly to get voted.
  • the sealing gaps and / or the pocket are advantageous executed in the manner that the least possible leakage from the pumping chamber takes place in the bag.
  • a filtered and / or cooled fluid can be used to supply the bag, whereby wear can be reduced.
  • the pocket may extend in the axial direction of the delivery chamber and the outer rotor over the entire axial length of the outer rotor, with open axial end faces, it may alternatively extend only over part of the axial length of the outer rotor, with only one open end or two closed end sides.
  • the pocket may be shorter in the axial direction than the axial length of the outer rotor and centered relative thereto.
  • the radial extent of the pocket is substantially smaller than the axial extent of the pocket.
  • the radial extension is advantageously at most 20% of the axial extent, particularly advantageously at most 10% of the axial extent and very particularly advantageously at most 5% of the axial extent.
  • the radial extent of the pocket is advantageously at most 3 millimeters, more preferably at most 1.5 millimeters, and most preferably at most 0.5 millimeters.
  • the pocket can preferably be supplied or filled with the fluid delivered by the rotary pump, for example by leakage within the delivery chamber.
  • a supply or filling of the bag via separate supply lines, such as passageways through the outer rotor or through the delivery chamber wall, which open in the pocket, conceivable.
  • the rotation pump can also have at least one connection which connects the pocket fluidically with the outlet from the delivery chamber or the pressure side of the rotary pump and / or the inlet into the delivery chamber or the suction side of the rotary pump.
  • the rotary pump may include a pocket connected to the inlet via a connection, such as a channel or groove. Additionally or alternatively, the rotary pump may comprise a pocket which is connected to the outlet via a connection, such as a channel or a groove.
  • connection may be, for example, a groove or a channel in a Delivery chamber facing the inside of a lid or bottom, which delimit the delivery space axially acting and which opens into the inlet and / or the outlet and extends to the inner peripheral wall of the delivery chamber or at least to close to the inner peripheral wall of the delivery chamber.
  • the rotary pump may have a groove or a channel in the inner circumferential wall of the delivery chamber and / or in the outer peripheral wall of the outer rotor.
  • the groove or the channel in the inner peripheral wall of the delivery chamber can be connected to a groove or a channel in the cover or bottom, which axially delimit the delivery chamber.
  • the groove or the channel in the inner peripheral wall of the pumping chamber a pocket that does not axially to the bottom or lid and thus has a closed end face, connect to the bottom or the lid.
  • the groove or channel may connect the inlet and / or outlet to the pocket by the shortest path or be curved.
  • the rotary pump may include a pocket fluidly connected to at least one of the delivery cells via a connection, such as a channel or groove.
  • this connection may extend into the drive web, in particular into a region of greatest meshing of the rotors, or the sealing web, in particular into a region of a smallest or missing tooth engagement of the rotors, for example as a channel open to the conveying chamber.
  • the drive web and the sealing web are arranged, viewed along a direction of rotation, respectively between the inlet and the outlet.
  • connection which supplies or fills the bag with the fluid via the inlet, the outlet, the web or the sealing web can run outside the delivery chamber.
  • the pocket can be arranged in the region of the outlet from the delivery chamber, in the region of the inlet into the delivery chamber, in the region of the sealing web or in the region of the delivery web.
  • the pocket may be located adjacent to the outlet, adjacent to the inlet, adjacent to the sealing ridge or adjacent to the web when viewed radially.
  • the pocket may extend in the circumferential direction of the outer peripheral wall and / or the inner peripheral wall from the outlet to the inlet.
  • the bag may open into the inlet and / or the outlet and thereby, for example, the inlet in the Permanently connect the delivery room with the outlet from the delivery room.
  • the pocket may extend around the entire circumference of the outer rotor.
  • the pocket may extend in the circumferential direction of the outer peripheral wall of the outer rotor and the inner peripheral wall of the delivery chamber from the sealing ridge to the drive bridge.
  • the circumferentially extending pocket may be connected to the inlet and / or the outlet and / or at least one of the conveyor cells at the same time in the region of the sealing web and / or the web. That is, the circumferentially extending pocket may, for example, have a combined connection to the inlet and / or outlet and / or to at least one of the delivery cells at the seal land and / or the dock land.
  • a first pocket in the region of the inlet into the delivery chamber and a second pocket in the region of the outlet can lie out of the delivery chamber.
  • the first pocket and the second pocket may be disposed opposite to each other with respect to a rotation axis of the outer rotor or circumferentially offset from each other in or against a rotational direction of the pump.
  • the plurality of pockets can be distributed over the inner circumference of the delivery chamber and / or the outer circumference of the outer rotor or outer rotor, preferably evenly distributed.
  • the inner peripheral wall of the delivery chamber and / or the outer peripheral wall of the outer rotor has at least two pockets, these pockets can be fluidly connected to one another via a connection.
  • This connection may be formed in the inner peripheral wall of the delivery space and / or the outer peripheral wall of the outer rotor.
  • the connection can connect the pockets permanently or rotationally dependent on the outer rotor.
  • at least one of the pockets may, for example, differ in geometry and / or shape and / or size from at least one of the other pockets.
  • the inner rotor or the outer rotor may be connected or coupled to a drive, such as an electric motor or a shaft driven by an engine, which generates the drive power for the rotary pump.
  • a drive such as an electric motor or a shaft driven by an engine, which generates the drive power for the rotary pump.
  • the rotor is connected to an electric motor.
  • the motor vehicle has an internal combustion engine as a drive
  • the rotary pump can be driven by the electric motor, preferably independently of the internal combustion engine, for example when the internal combustion engine is at a standstill.
  • the rotary pump advantageously has the electric motor.
  • the rotary pump is preferably designed as an electric rotary pump.
  • the rotary pump is preferably designed as an auxiliary pump and / or an auxiliary pump for supporting and / or for at least partially replacing a main or primary pump in a lubricant and / or coolant system of a motor vehicle.
  • auxiliary pump and / or an auxiliary pump for supporting and / or for at least partially replacing a main or primary pump in a lubricant and / or coolant system of a motor vehicle.
  • One direction of rotation of the rotary pump can preferably be switched, so that the pump can be used flexibly. Switching the direction of rotation of the rotary pump changes the flow direction of the medium to be pumped by the rotary pump, which in other words is a reversible rotary pump.
  • a second aspect relates to a pot-shaped part of a housing for a rotary pump, in particular for an internal gear pump or a pendulum slide pump, which forms an inner peripheral wall and a bottom of a delivery chamber of the rotary pump.
  • the inner peripheral wall comprises at least one pocket as described in the first aspect of the invention.
  • the inner peripheral wall may also have a connection as described in the first aspect of the invention.
  • the housing part can also form only the inner peripheral wall of the pumping chamber.
  • a third aspect of the invention relates to an external rotor or outer rotor for, for example, an internal gear pump.
  • An outer peripheral wall of the outer rotor comprises at least one pocket as described in the first aspect of the invention.
  • the outer peripheral wall may also have a connection as described in the first aspect of the invention.
  • the part of the housing according to the second aspect and / or the outer rotor according to the third aspect can be stored separately and replace, for example, the corresponding housing part and / or the outer rotor of a conventional rotary pump.
  • FIG. 1 shows a view from above into a delivery chamber 1 of a rotary pump. From the rotary pump, a part of the housing 2 can be seen, with the bottom 3 of the pumping chamber 1. In the bottom 3, an opening 4 is eccentrically formed by the example, a drive axle for only in the Figures 3 . 7 . 9, 10 shown inner rotor 9 can be guided into the interior of the pumping chamber 1.
  • an inlet 5 for a fluid in the delivery chamber 1 and an outlet 6 for the fluid from the delivery chamber 1 is further formed.
  • the numbering is for a rotary pump with a counterclockwise rotating inner rotor 9. When the direction of rotation is reversed, the inlet 5 to the outlet 6 is correspondingly formed, and the outlet 6 to the inlet 5.
  • the housing 2 forms an inner peripheral surface 11 of the delivery chamber 1, which, together with an outer peripheral surface 12 of the likewise only in the Figures 3 . 7 . 9, 10 shown outer rotor 10 forms a sealing gap 16 over large parts of the circumference, so that the inner peripheral surface 11 forms a guide or sliding surface for the outer rotor 10.
  • a pocket 7 is formed in the region of the outlet 6, which extends radially outward.
  • the pocket 7 is arranged in the circumferential direction centrally or centrally to the outlet 6.
  • the outer peripheral surface 12 of the outer rotor 10 and the inner peripheral surface 11 of the delivery chamber 1 are clearly spaced apart so that in the region of the pocket 7 the outer rotor 10 experiences no guidance through the inner circumferential surface 11.
  • the fluid may be, for example, an oil that is pumped from a reservoir to a consumer.
  • the collecting in the pocket 7 fluid or oil can then be used when starting the rotary pump to immediate lubrication in the sealing gap between the inner peripheral wall 11 and outer peripheral surface 12 of the outer rotor To ensure 10, so that the force required to start the rotary pump power can be reduced.
  • the accumulated in the pocket 7 fluid can also have a damping effect and contribute to a smoother running of the rotary pump, that is, for example, lower noise, during operation of the rotary pump.
  • the fluid in the pocket 7 can prevent or at least delay wear of the outer circumferential surface 12 of the outer rotor 10 and the inner circumferential surface 11 of the delivery chamber 1 and thus increase the service life of the rotary pump.
  • the pocket 7 is formed in the region of the inlet 5 and connected to the inlet 5 via a connection 8 in the bottom 3. Fluid may flow from the inlet 5 via the connection 8 into the pocket 7 and fill the pocket 7 with the fluid to be pumped.
  • the compound 8 is formed as a to the delivery chamber 1 open groove in the bottom 3.
  • FIG. 3 shows an embodiment of the invention, in which in the inner peripheral surface 11 of the pumping chamber 1, two pockets 7 are formed.
  • the inner rotor 9 and the outer rotor 10 are indicated.
  • a pocket 7 is formed in the region of the inlet 5 and the outlet 6.
  • Each of the pockets 7 is connected via a connection 8 with its associated inlet 5 and outlet 6, respectively.
  • a further connection not shown, which may be formed for example in the inner peripheral wall 11 or in the bottom 3, the two illustrated compounds 8 or the pockets 7 may be fluidly connected to each other.
  • FIG. 4 In each case, a pocket 7 is formed in the area of the drive web 14 and of the sealing web 15 in the inner circumferential wall 11.
  • FIG. 5 which are essentially the FIG. 1 is the only pocket 7 viewed in the circumferential direction not centrally or centrally, but arranged offset to the outlet 6.
  • the bag 7 of this embodiment can in particular of them overflowing, only in the Figures 3 . 7 . 9, 10 shown supply cells 13 and / or a leakage flow are supplied with fluid and filled.
  • FIG. 6 corresponds to the arrangement of the pockets 7 in the inner peripheral surface 11 of the arrangement as in the FIG. 3 shown.
  • the pockets 7 are not connected via a respective connection 8 to the inlet 5 or the outlet 6, but are supplied via a leakage flow and possibly over them overflowing conveyor cells 13 with the fluid.
  • FIG. 7 shows an embodiment of a rotary pump according to the invention with three pockets 7, which are arranged distributed over the circumference of the delivery chamber 1 and thus viewed in the circumferential direction substantially uniformly.
  • the pockets 7 may all be identically formed or each of the pockets 7 may have a different geometry and / or shape and / or size than another of the pockets 7.
  • the housing 2 with the delivery chamber 1 is shown.
  • the outer rotor 10 and the outer rotor 10 an eccentrically mounted inner rotor 9 is arranged in the delivery chamber 1, the outer rotor 10 and the outer rotor 10, an eccentrically mounted inner rotor 9 is arranged.
  • the inner rotor 9 and the outer rotor 10 together form delivery cells 13, in which the fluid can be transported from the inlet 5 to the outlet 6, during which the pressure in the fluid is increased and / or the fluid is compressed.
  • the inner rotor 9 or the outer rotor 10 may be connected to a rotary drive, wherein the driven inner rotor 9 / outer rotor 10 transmits the rotational movement to the non-driven outer rotor 10 / inner rotor 9.
  • FIG. 8 The embodiment of FIG. 8 is essentially the same as the FIG. 2 , In the FIG. 8 is the pocket 7 viewed in the circumferential direction centrally or centrally in the region of the inlet 5 is arranged.
  • the pocket 7 lacks a direct connection to the inlet 5 and the outlet 6.
  • the rotary pump may have a connection which connects the pocket 7 arranged in the region of the inlet 5 to the outlet 6.
  • the connection may extend in the bottom 3, the outer peripheral surface 12 and / or the inner circumferential surface 11.
  • connection 8 is formed, which connects the pocket 7 with each of the connection 8 overflowing conveyor cell 13, so that the residual fluid from this conveyor cell 13, which may be under a particularly high pressure (in particular squeezing pressure), in the pocket. 7 can flow into it.
  • This pressure relief on or in the drive bridge 14 can be advantageous for the smoothness of the inner rotor 9, as this forces can be reduced orthogonal to the axis of rotation of the inner rotor 9.
  • FIG. 10 In the FIG. 10 is ever a pocket 7 in the region of the sealing web 15 and the web 14 arranged.
  • a compound 8 In the drive bridge 14 and in the sealing ridge 15 is in each case a compound 8 is formed, which connects the respective pocket 7 with each of the connection 8 overflowing conveyor cell 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP19161045.0A 2018-03-06 2019-03-06 Unterstützungstaschen Pending EP3536956A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018105121.2A DE102018105121A1 (de) 2018-03-06 2018-03-06 Unterstützungstaschen

Publications (1)

Publication Number Publication Date
EP3536956A1 true EP3536956A1 (de) 2019-09-11

Family

ID=65717905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19161045.0A Pending EP3536956A1 (de) 2018-03-06 2019-03-06 Unterstützungstaschen

Country Status (4)

Country Link
US (1) US11353020B2 (zh)
EP (1) EP3536956A1 (zh)
CN (1) CN110230594B (zh)
DE (1) DE102018105121A1 (zh)

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Publication number Priority date Publication date Assignee Title
DE102021129445A1 (de) * 2021-11-11 2023-05-11 Schwäbische Hüttenwerke Automotive GmbH Drucktaschen am Hohlrad

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DE102008053318A1 (de) * 2008-10-27 2010-04-29 Trw Automotive Gmbh Reversibel betreibbare Zahnradmaschine, sowie Fahrzeuglenksystem und Verfahren zur Steuerung eines Fahrzeuglenksystems
DE102011100105A1 (de) * 2011-04-30 2012-10-31 Robert Bosch Gmbh Füllstücklose hydrostatischeInnenzahnradmaschine
JP2015108306A (ja) * 2013-12-03 2015-06-11 本田技研工業株式会社 オイルポンプ

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US20190277171A1 (en) 2019-09-12
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CN110230594B (zh) 2022-08-12
US11353020B2 (en) 2022-06-07

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