WO2016180570A1 - Pompe volumétrique, procédé de fonctionnement d'une pompe volumétrique, système de direction et mécanisme - Google Patents

Pompe volumétrique, procédé de fonctionnement d'une pompe volumétrique, système de direction et mécanisme Download PDF

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Publication number
WO2016180570A1
WO2016180570A1 PCT/EP2016/056992 EP2016056992W WO2016180570A1 WO 2016180570 A1 WO2016180570 A1 WO 2016180570A1 EP 2016056992 W EP2016056992 W EP 2016056992W WO 2016180570 A1 WO2016180570 A1 WO 2016180570A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
displacement pump
lateral surface
recess
cam ring
Prior art date
Application number
PCT/EP2016/056992
Other languages
German (de)
English (en)
Inventor
Michael Reichenmiller
Original Assignee
Robert Bosch Automotive Steering 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 Robert Bosch Automotive Steering Gmbh filed Critical Robert Bosch Automotive Steering Gmbh
Publication of WO2016180570A1 publication Critical patent/WO2016180570A1/fr

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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • 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
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
    • 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
    • F04C2240/20—Rotors
    • 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
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry of the inlet or outlet
    • F04C2250/101—Geometry of the inlet or outlet of the inlet
    • 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
    • F04C2250/00—Geometry
    • F04C2250/20—Geometry of the rotor
    • 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
    • F04C2270/20—Flow

Definitions

  • Positive displacement pump method for operating a positive displacement pump
  • the invention relates to a positive displacement pump, in particular a
  • Vane pump for delivering a fluid to a consumer.
  • the invention further relates to a method for operating the
  • Positive displacement pump in particular the vane pump for conveying the fluid to the consumer.
  • the invention also relates to a steering system for a motor vehicle.
  • the invention further relates to a transmission for a
  • Vane pumps of known design are generally constructed such that a rotor rotates in a cam ring.
  • the cam ring is completed by one side with a housing forming a face plate and a control plate.
  • the cam ring has a to the axis of the rotor depending on the design coaxial or non-coaxial contour and forms a pump room.
  • In the peripheral surface of the rotor are arranged substantially radially extending slots over the width thereof, in which radially displaceable wings are guided. Upon rotation of the rotor about its axis, the wings are guided along the contour of the cam ring, wherein between two adjacent wings chambers each of varying volume are formed.
  • a suction region and a pump pressure space or pressure region are formed, wherein the suction region in the region of increasing volume and the pressure range of the
  • DE 102 33 581 A1 discloses a vane pump for conveying a fluid. The fluid flows from an end plate opening through a vane to an opposite end plate opening.
  • the invention is thus based on the object of specifying a displacement pump, in particular a vane pump for conveying a fluid for a consumer, which allows effective filling of the suction volume of the vane.
  • the object is with a positive displacement pump, in particular a
  • Vane pump for promoting a fluid for a consumer with the features of claim 1 solved. Furthermore, the object is achieved with a method for operating a displacement pump, in particular a vane pump for conveying a fluid for a consumer with the features of claim 8. Moreover, the object is achieved with a steering system with the features of claim 11. Furthermore, the object is achieved with a transmission having the features of patent claim 13.
  • the present invention provides a displacement pump, in particular a vane pump for conveying a fluid for a consumer, wherein a lateral surface of the rotor has at least one recess which is adapted to a fluid flow, with which in the suction zone
  • arranged delivery chamber is acted upon, in an interior of the
  • the present invention further provides a method of operating a positive displacement pump, in particular a vane pump for delivering a fluid to a consumer.
  • a positive displacement pump in particular a vane pump for delivering a fluid to a consumer.
  • At least one depression formed in a lateral surface of the rotor conducts a fluid flow, with which the delivery chamber arranged in the suction zone is charged, into an interior of the delivery chamber.
  • the present invention also provides a steering system with at least one consumer, and a positive displacement pump for delivering a fluid for the at least one consumer of the steering system.
  • the present invention further provides a transmission with at least one consumer, and a positive displacement pump for delivering a fluid for the at least one consumer of the transmission.
  • An idea of the present invention is to allow effective provision of the suction volume of the delivery chamber arranged in the suction zone by providing the depression in the lateral surface of the rotor. This can be achieved in that the fluid flow due to a geometric
  • Formation of the recess formed in the lateral surface of the rotor is passed into the interior of the delivery chamber.
  • a fluid pulse of the fluid flow thus bounces off the recess and is directed into the interior of the delivery chamber.
  • the at least one depression of the lateral surface of the rotor is designed such that a first diameter of respective end faces of the rotor is greater than a second diameter of the rotor in a center region of the lateral surface of the rotor formed in the axial direction of the rotor.
  • the fluid pulse can rebound from the lateral surface and show a pulse reflection in the interior of the delivery chamber between cam ring and lateral surface.
  • the at least one depression of the lateral surface of the rotor is formed by an at least partially concave, chamfered and / or stepped design of the lateral surface of the rotor.
  • the type of geometric configuration of the recess is thus selected to appropriate requirements of the positive displacement pump in terms of, for example, the formation of the recess and / or a height of an applied pressure.
  • the at least one depression of the lateral surface of the rotor at least
  • the recess of the lateral surface can thus be adapted to individual structural requirements of the positive displacement pump.
  • the at least one depression of the lateral surface of the rotor is formed along the entire lateral surface or in sections in a respective delivery chamber.
  • the special design of the recess of the lateral surface of the rotor is thus adaptable to corresponding requirements of the positive displacement pump.
  • a weight saving of the rotor can be achieved. If only a slight enlargement of the suction volume of the delivery chamber is intended, the sectional formation of the depression in the respective delivery chamber is advantageous.
  • the recess of the cam ring is formed such that the cam ring in the adjacent to the suction zone of the working chamber first portion of the cam ring has a reduced width than in an adjacent to the first portion of the cam ring second portion of the cam ring , As a result, a radial supply of the fluid or the fluid flow into the suction volume of the delivery chamber can be achieved.
  • a corresponding positioning of the recess along an axial width of the cam ring is advantageously freely selectable.
  • a rear wing pressure of the fluid in the rear wing channel flows in one
  • Operating state of the positive displacement pump is controlled by a dimension of at least one recess of the lateral surface of the rotor. Because of the fact that the lateral surface of the rotor has the recess, the wing is not fully sealed in the slot. By appropriate choice of the depression, the rear wing pressure can thus be influenced and a slight leakage of the fluid can be achieved. For example, a squish fluid pressure behind the wings can be avoided.
  • a respective wing in an operating state of the positive displacement pump in each case within a slot clearance of the slot tilts such that a
  • Rear wing edge of the wing sealingly abuts the slot on one side and the wing is supported at a position of a largest diameter of the rotor.
  • Embodiments of the invention mediate. They illustrate
  • Fig. 1 is a longitudinal sectional view of a positive displacement pump for promotion
  • Fig. 2 is an enlarged detail view of that shown in Fig. 1
  • Fig. 3 is a detail view of the positive displacement pump for delivering the fluid to the consumer according to another preferred
  • Fig. 4 is a detail view of the positive displacement pump for delivering the fluid to the consumer according to another preferred
  • Positive displacement pump for delivering the fluid to the consumer according to the preferred embodiment of the invention
  • Fig. 7 shows a steering system for a motor vehicle with the positive displacement pump for
  • Fig. 8 shows a transmission for a motor vehicle with the positive displacement pump for
  • Fig. 1 shows a longitudinal sectional view of a positive displacement pump for delivering a fluid for a consumer according to a preferred embodiment of the invention.
  • the positive displacement pump 10 preferably has a pump housing 18.
  • the pump housing 18 consists of a first control plate 32 and a second control plate 34, which together form the pump housing 18.
  • Control plate 34 used for example in the pump housing 18 or
  • the pump housing 18 may for example also be part of a steering housing (not shown in FIG. 1) or a transmission housing.
  • a cam ring 20 is inserted in the pump housing 18.
  • a rotor 24 is further arranged, which is supported by a drive shaft 22 and driven by a drive pinion 23.
  • the working chamber 30 is formed.
  • the working chamber 30 is limited in the axial direction by the control plates 32, 34.
  • the working chamber 30 preferably has a suction zone and a pressure zone.
  • the rotor 24 has a plurality of slots (not shown in FIG. 1) in which vanes are slidably guided.
  • the working chamber 30 has a plurality of (not shown in Fig. 1), divided by the wings
  • the cam ring 20 preferably has in a to the suction zone of the working chamber adjacent first portion 20 a of Cam ring a recess 38 for sucking fluid in one in the
  • Suction zone arranged delivery chamber.
  • a lateral surface 24a of the rotor 24 has a recess 41.
  • the depression 41 is preferably designed to direct a fluid flow F, with which the delivery chamber arranged in the suction zone is fed, into an interior space 31 of the delivery chamber.
  • the recess 41 of the lateral surface 24a of the rotor 24 is preferably designed such that a first diameter D1 of respective end faces 24b, 24c of the
  • Rotor 24 is greater than a second diameter D2 of the rotor 24 in a formed in the axial direction of the rotor 24 center region 25 of the lateral surface 24a of the rotor 24.
  • the positive displacement pump 10 preferably has a constant geometric delivery volume.
  • the positive displacement pump 10 may have, for example, a variable geometric delivery volume.
  • FIG. 2 shows an enlarged detail view of that shown in FIG. 1
  • Embodiment formed by a concave lateral surface 24a of the rotor 24 formed by a concave lateral surface 24a of the rotor 24.
  • the recess 41 of the lateral surface 24a of the rotor 24 for example beveled or stepped.
  • a combination of a concave, bevelled and / or step-shaped design of the lateral surface 24a of the rotor 24 have.
  • the recess 41 of the lateral surface 24a of the rotor 24 is preferably formed completely circumferentially in the circumferential direction of the lateral surface 24a of the rotor 24. Furthermore, the recess 41 of the lateral surface 24a of the rotor
  • the lateral surface 24a of the rotor 24 may be formed in sections in a respective delivery chamber.
  • the recess 38 of the cam ring 20 is preferably formed such that the cam ring 20 in the adjacent to the suction zone of the working chamber first portion 20a of the cam ring 20 has a reduced width than in a to the first portion 20a of the cam ring 20 adjacent (in Fig. 2 not shown) second portion of the cam ring 20 has.
  • the recess 38 is preferably formed on both sides of the cam ring 20. This can ensure that fluid on both sides of the cam ring 20 through the recess 38 in the suction of the
  • Fig. 3 shows a detailed view of the positive displacement pump for delivering the fluid to the consumer according to another preferred embodiment of the invention.
  • the recess 41 of the lateral surface 24a of the rotor 24 is preferably formed bevelled.
  • respective edge regions of the recess 41 have inclined surfaces and the central region 25 of the lateral surface 24a of the rotor 24 is preferably flat.
  • the recess 41 may be formed, for example step-shaped or have a combination of a concave, bevelled and / or step-shaped design of the lateral surface 24a of the rotor 24.
  • the recess 41 of the lateral surface 24a of the rotor 24 is preferably formed completely circumferentially in the circumferential direction of the lateral surface 24a of the rotor 24. Furthermore, the recess 41 of the lateral surface 24a of the rotor 24 is preferably in sections in the axial direction of the rotor 24 in the
  • the lateral surface 24a of the rotor 24 may be formed in sections in a respective delivery chamber.
  • the recess 38 of the cam ring 20 is preferably designed such that the cam ring 20 in the adjacent to the suction zone of the working chamber first portion 20a of the cam ring 20 has a reduced width than in a to the first portion 20a of the cam ring 20 adjacent (in Fig. 3 not shown) second portion of the cam ring 20 has.
  • the recess 38 is preferably formed on both sides of the cam ring 20. This can ensure that fluid on both sides of the cam ring 20 through the recess 38 in the suction of the
  • the recess 41 of the lateral surface 24a of the rotor 24 is preferably formed bevelled.
  • respective edge regions of the recess 41 oblique surfaces and the central region 25 of the lateral surface 24a of the rotor 24 also inclined surfaces, wherein in the respective
  • the respective inclined surfaces of the lateral surface 24a of the rotor 24 are
  • the respective inclined surfaces of the lateral surface 24a of the rotor 24 may be symmetrical to one another.
  • the recess 41 may be formed, for example step-shaped or have a combination of a concave, bevelled and / or step-shaped design of the lateral surface 24a of the rotor 24.
  • the recess 41 of the lateral surface 24a of the rotor 24 is preferably in
  • Circumferentially circumferential direction of the lateral surface 24a of the rotor 24 educated. Furthermore, the recess 41 of the lateral surface 24a of the rotor 24 is preferably in sections in the axial direction of the rotor 24 in the
  • the lateral surface 24a of the rotor 24 may be formed in sections in a respective delivery chamber.
  • the recess 38 is preferably formed on one side of the cam ring 20. Due to the non-symmetrical design of the recess of the lateral surface 24a of the rotor 24 may thus preferably an effective
  • Fig. 5 shows a cross-sectional view of the positive displacement pump for delivering the fluid for the consumer according to the preferred embodiment of the invention.
  • the rotor 24 preferably rotates clockwise.
  • the working chamber 30 preferably has a plurality of divided by the wings 27
  • the delivery chambers 30c and 30d are arranged in the suction zone 35 in FIG.
  • the delivery chamber 30f is arranged in the pressure zone 36 in FIG.
  • the rotor 24 has a plurality of slots 26 in which the wings 27 are slidably guided.
  • the slots 26 are connected by means of a Schuerielkanals 28 with a pump pressure side. Upon application of pressure, the wings 27 are thus pressed against an inner peripheral surface of the cam ring 20.
  • a Deutschenerieldruck P of the fluid in the Hälllinalkanal 28 is in an operating state of the positive displacement pump preferably by a
  • the other support of the wing 27 is preferably carried out the largest
  • FIG. 6 shows a flowchart of a method for operating the
  • Positive displacement pump for delivering the fluid to the consumer according to the preferred embodiment of the invention.
  • the method comprises supplying Sl a pump suction side from a suction port with a pressure medium and connecting one
  • the method further comprises providing S2 of a
  • the method also includes a
  • the method further comprises providing S4 a working chamber formed by the cam ring and the rotor, which is bounded in the axial direction by control plates, wherein the working chamber has a suction zone and a pressure zone and through the wing divided delivery chambers are formed.
  • the method further comprises suction S5 of the fluid into a delivery chamber located in the suction zone through at least one in the cam ring in a portion adjacent to the suction zone of the working chamber formed recess, wherein at least one recess formed in a lateral surface of the rotor, a fluid flow, which is applied to the arranged in the suction conveyor chamber, passes into an interior of the delivery chamber S6.
  • a respective wing tilts in an operating state of
  • Fig. 7 shows a steering system with the positive displacement pump for delivering the fluid to the consumer of the steering system according to the preferred embodiment of the invention.
  • the steering system 1 is located in a motor-driven vehicle, in particular in a passenger car or a commercial vehicle.
  • the steering system 1 comprises a steering wheel 2 to be actuated by the driver, which acts via a steering column 3 on a vehicle wheel via a steering gear 4 and adjusts this in accordance with the driver's request.
  • a steering angle torque sensor 5 is symbolically entered via the appropriate the steering angle, possibly also the steering angle speed to be determined and are supplied as input to a control and control unit, in which the input signals are processed and the from this - together with other vehicle status and operating variables - generates control signals via which the various units of the vehicle including the steering system 1 and the drive motor are to be set.
  • the steering system 1 has at least one consumer or actuating cylinder 6.
  • the adjusting cylinder 6 has two separate chambers 6a and 6b, which are each connected via hydraulic lines 8a, 8b to a pressure regulating valve 8.
  • the displacement pump 10 is preferably designed as a vane pump.
  • the Positive displacement pump 10 preferably generates a hydraulic pressure, so that the pressure control valve 8 via the positive displacement pump 10 hydraulic fluid is supplied under pressure.
  • a drive motor 9a is provided, which is connected to the positive displacement pump 10 by means of a coupling 9b.
  • a hydraulic reservoir 11 is provided, via the recirculated
  • Hydraulic medium of the positive displacement pump 10 can be fed.
  • Fig. 8 shows a transmission for a motor vehicle with the positive displacement pump for delivering the fluid to the consumer according to the preferred
  • the transmission 100 is located in a motor-driven vehicle, in particular in a passenger car or a commercial vehicle.
  • the displacement pump 10 is preferably designed as a vane pump.
  • the positive displacement pump 10 generates a hydraulic pressure for the consumer.
  • the recess of the cam ring may also have another suitable shape or design which, depending on the structural arrangement of the pressure lines or the pump pressure side allows effective filling of the delivery chamber of the suction side of the positive displacement pump.

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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)

Abstract

La divulgation concerne une pompe volumétrique (10), en particulier une pompe à palettes pour le transport d'un fluide destiné à un récepteur (6). Une surface extérieure (24a) d'un rotor (24) de la pompe volumétrique (10) présente au moins un renfoncement (41) configuré pour guider un écoulement de fluide (F) destiné à une chambre de pompage (30d) disposée dans une zone d'aspiration (35), de manière à l'amener dans une cavité interne (31) de la chambre de pompage (30d). La divulgation concerne en outre un procédé de fonctionnement d'une pompe volumétrique (10), ainsi qu'un système de direction (1) destiné à un véhicule automobile. La divulgation concerne également un mécanisme pour un véhicule automobile.
PCT/EP2016/056992 2015-05-13 2016-03-31 Pompe volumétrique, procédé de fonctionnement d'une pompe volumétrique, système de direction et mécanisme WO2016180570A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015107519.9 2015-05-13
DE102015107519.9A DE102015107519A1 (de) 2015-05-13 2015-05-13 Verdrängerpumpe, Verfahren zum Betreiben einer Verdrängerpumpe, Lenksystem und Getriebe

Publications (1)

Publication Number Publication Date
WO2016180570A1 true WO2016180570A1 (fr) 2016-11-17

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PCT/EP2016/056992 WO2016180570A1 (fr) 2015-05-13 2016-03-31 Pompe volumétrique, procédé de fonctionnement d'une pompe volumétrique, système de direction et mécanisme

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Country Link
DE (1) DE102015107519A1 (fr)
WO (1) WO2016180570A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9915263B2 (en) 2016-02-11 2018-03-13 Steyr Motors Gmbh Gear pump with deflector in fluid intake for diverting fluid towards voids in housing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015115587B4 (de) 2015-09-16 2024-07-18 Pump Technology Solutions PS GmbH Verdrängerpumpe,verfahren zum betreiben einer verdrängerpumpe,lenksystem und getriebe

Citations (7)

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Publication number Priority date Publication date Assignee Title
DE10233581A1 (de) 2002-07-24 2004-02-05 Zf Lenksysteme Gmbh Flügelzellenpumpe
DE10233582A1 (de) * 2002-07-24 2004-02-26 Zf Lenksysteme Gmbh Flügelzellenpumpe zur Förderung eines Fluids
EP1582745A2 (fr) * 2004-03-23 2005-10-05 Brother Kogyo Kabushiki Kaisha Pompe et imprimante à jet d' encre associée
DE102007039172A1 (de) * 2007-06-05 2008-12-11 Robert Bosch Gmbh Flügelzellenpumpe
US20130052073A1 (en) * 2011-08-31 2013-02-28 Showa Corporation Vane pump
DE102012104804A1 (de) * 2012-06-04 2013-12-05 Zf Lenksysteme Gmbh Verdrängerpumpe
DE102012104865A1 (de) * 2012-06-05 2013-12-05 Zf Lenksysteme Gmbh Welle-Läuferverbindung mit Gewinde

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Publication number Priority date Publication date Assignee Title
US2821143A (en) * 1954-07-06 1958-01-28 Vickers Inc Power transmission
WO1990008900A1 (fr) * 1989-02-03 1990-08-09 Racine Fluid Power, Inc. Palette fendue pour pompes ou moteurs a palettes
GB2419382B (en) * 2004-10-21 2010-03-31 Richard See Rotary device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233581A1 (de) 2002-07-24 2004-02-05 Zf Lenksysteme Gmbh Flügelzellenpumpe
DE10233582A1 (de) * 2002-07-24 2004-02-26 Zf Lenksysteme Gmbh Flügelzellenpumpe zur Förderung eines Fluids
EP1582745A2 (fr) * 2004-03-23 2005-10-05 Brother Kogyo Kabushiki Kaisha Pompe et imprimante à jet d' encre associée
DE102007039172A1 (de) * 2007-06-05 2008-12-11 Robert Bosch Gmbh Flügelzellenpumpe
US20130052073A1 (en) * 2011-08-31 2013-02-28 Showa Corporation Vane pump
DE102012104804A1 (de) * 2012-06-04 2013-12-05 Zf Lenksysteme Gmbh Verdrängerpumpe
DE102012104865A1 (de) * 2012-06-05 2013-12-05 Zf Lenksysteme Gmbh Welle-Läuferverbindung mit Gewinde

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9915263B2 (en) 2016-02-11 2018-03-13 Steyr Motors Gmbh Gear pump with deflector in fluid intake for diverting fluid towards voids in housing

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