US20150240807A1 - Adjustable vane pump - Google Patents

Adjustable vane pump Download PDF

Info

Publication number
US20150240807A1
US20150240807A1 US14/627,234 US201514627234A US2015240807A1 US 20150240807 A1 US20150240807 A1 US 20150240807A1 US 201514627234 A US201514627234 A US 201514627234A US 2015240807 A1 US2015240807 A1 US 2015240807A1
Authority
US
United States
Prior art keywords
housing
rotor
vane
floor
adjustment
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.)
Abandoned
Application number
US14/627,234
Other languages
English (en)
Inventor
Marc Reiber
Thomas Gulde
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.)
Joma Polytec GmbH
Original Assignee
Joma Polytec 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 Joma Polytec GmbH filed Critical Joma Polytec GmbH
Assigned to JOMA-POLYTEC GMBH reassignment JOMA-POLYTEC GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: REIBER, MARC, GULDE, THOMAS
Publication of US20150240807A1 publication Critical patent/US20150240807A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • 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
    • 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
    • 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

Definitions

  • the present invention relates, generally, to pumps and, more specifically, to an adjustable vane pump.
  • Adjustable vane pumps known in the related rt may include a bowl-shaped housing with a rotor supported in the housing such that the rotor can rotate about an axis of rotation.
  • the rotor guides at least one vane supported on the rotor such that the vane can move in the axial direction.
  • the housing has a first (upper) thrust surface running at a right angle to the rotor axis, and a second (lower) thrust surface running parallel thereto, for the rotor and vanes.
  • the second thrust surface is formed by a housing floor.
  • the housing includes: an adjustment housing, disposed between the thrust surfaces, enclosing the rotor and vanes, and which is adjustable transverse to the rotor axis; and a primary housing encompassing the adjustment housing.
  • Vane pumps of this type are used in motor vehicles, in the form of oil pressure pumps for motor oil or transmission fluid.
  • the pumps, or their rotors, respectively, are powered by a motor, in particular by a camshaft of an internal combustion engine.
  • Vane pumps typically include a crescent-shaped pressure compartment which is subdivided into pressure chambers by at least one vane. By turning the rotor, which is disposed eccentrically to the interior walls of the adjustment housing, a pressure difference between a suction intake and a pressure outlet can be created.
  • Vane pumps of this type are adjustable (or, variable); by displacing the adjustment housing, the size of the crescent-shaped pressure compartment can be adjusted and, as a result, the pump characteristic is also modified. Depending on specific application requirements, the performance of the vane pump can therefore also be adjusted.
  • the vane pump needs to be as tightly sealed as possible.
  • the primary housing needs to rest against the thrust surface in a sealed manner.
  • the adjustment housing and the rotor need to be able to be moved in a functionally stable manner between the thrust surfaces.
  • the present invention overcomes the disadvantages in the related art an adjustable vane pump having a bowl-shaped housing and a rotor rotatably supported about a rotor axis.
  • the rotor guides at least one vane supported so as to move radially.
  • the housing includes a first thrust surface and a second thrust surface for the rotor and vane, which are transverse to the rotor axis.
  • the second thrust surface is formed by a housing floor.
  • the housing includes an adjustment housing, disposed between the thrust surfaces, which encloses the rotor and vane, and which can be displaced transverse to the rotor axis.
  • the housing also includes a primary housing that encloses the adjustment housing.
  • the axial extension of the primary housing is greater than the axial extension of the adjustment housing, the rotor, and/or the vane.
  • a suction intake and a pressure outlet are provided in the housing floor.
  • the suction intake is encircled by a gasket provided on the housing floor such that an upper side of a provided channel, facing the housing floor, is connectable in a sealed manner to the suction intake, under tension.
  • a vane pump of this type provides that a suction intake and a pressure outlet are provided in the floor of the housing, wherein the axial extension of the primary housing is greater than the axial extension of the adjustment housing, the rotor, and/or the vane. Because the axial extension of the primary housing being at least slightly greater than the axial extension of the moving components present in the housing, it can be ensured that the two end surfaces of the primary housing come to rest securely against the two thrust surfaces, and that the moving components (for example, the adjustment housing, the rotor, and the vane) can be moved freely in the housing, even if the second (lower) thrust surface is pushed toward the first (upper) thrust surface by vacuum present in the region of the suction intake in the housing.
  • the housing floor can be pushed toward the first thrust surface.
  • a defined gap axially between the thrust surfaces and the end surfaces of the moving components facing the thrust surfaces can be provided so as to avoid clamping or wedging of these components between the two thrust surfaces.
  • the axial extension is the extension of the respective components, in the axial direction between the two thrust surfaces.
  • the suction intake and the pressure outlet may be provided in the housing floor.
  • the moving parts inside the housing cannot become clamped or wedged in an undesired way, even though the suction intake is provided in the housing floor.
  • both the pressure outlet and the suction intake can be introduced in the axial direction, through the housing floor (in particular from below) to the pump, wherein it is thus ensured that the pump will function in a stable way.
  • the axial extension of the adjustment housing, the rotor, and the vane is identical in the axial direction between the two thrust surfaces.
  • the axial extension of the primary housing is greater than the axial extension of the adjustment housing, the rotor, and/or the vane, in the range of 1/1,000 mm-1/100 mm. In particular, in the range of 5/1,000 mm-5/100 mm. As a result, a defined axial gap can be established between the end surfaces of the adjustment housing, the rotor, the vane, and the two thrust surfaces.
  • the adjustment housing, the rotor, and the vane can be made from the same material, such as metal (in particular, steel). In this way, it is ensured that the thermal expansion of the adjustment housing, the rotor, and the vane is substantially identical.
  • the first (upper) thrust surface can be formed by a housing cover, which, in turn, can be connected in a fixed manner to the primary housing.
  • a gasket is provided on the housing floor, on the side facing the rotor, which encompasses the suction intake and/or the pressure outlet. In this way, a separation of the intake and outlet can be provided.
  • the rotor is advantageously powered by a rotor shaft which penetrates the housing floor and is rotatably supported by a thrust ring on a bearing bushing provided on the housing floor, wherein the gasket then also encompasses the region of the bearing bushing adjacent to the suction intake.
  • the bearing bushing can also be designed as a single piece, incorporated in the housing floor.
  • the region of the bearing bushing is allocated to the suction region.
  • an outer housing is provided, encompassing the primary housing in the radial direction, wherein the outer housing preferably extends above the primary housing in the axial direction, and the housing floor is enclosed by the outer housing, at least in sections.
  • other sealing elements can be provided between the outer housing and the primary housing and/or the housing floor for further sealing purposes (for example, encompassing sealing rings).
  • the housing floor may include an encompassing seal on its radial outer side, for a sealing attachment to one of the intakes for the vane pump.
  • the outer housing may also include seals of this type.
  • FIG. 1 is bottom side plan view of a vane pump.
  • FIG. 2 is a sectional view of the pump taken along line II-II of FIG. 1 .
  • FIG. 3 is a sectional view of the pump taken along line III-III of FIG. 1 .
  • FIG. 4 is a cut view of the pump taken along line IV-IV of FIG. 3 .
  • FIG. 5 is an alternate sectional view of the pump of FIG. 2 shown in an installation situation.
  • an adjustable vane pump 10 is shown in the figures, which, as depicted by the cuts according to FIGS. 2 and 3 , includes a multi-part housing 12 which encloses a pump compartment 14 .
  • a rotor 18 disposed such that it can rotate about a rotor axis 16 , is provided in the pump compartment 14 .
  • the rotor 18 is rotatably coupled to a rotor shaft 20 .
  • the rotor 18 moves vanes 22 that are supported in the rotor 18 such that the vanes 22 can be displaced in the radial direction (see FIG. 4 ).
  • the pump compartment 14 is bordered by a first, upper thrust surface 24 and by a second and lower thrust surface 26 , parallel thereto.
  • the upper thrust surface 24 is formed by a housing cover 28 thereby; the lower thrust surface 26 is formed by a housing floor 30 .
  • the pump compartment 14 is bordered by an adjustment housing 32 .
  • the radially outward lying vane tips of the vane 22 lie against the internal wall of the adjustment housing 32 .
  • the rotor 18 is disposed eccentrically in the pump compartment 14 .
  • a pressure difference is obtained in the crescent-shaped pressure compartment 42 .
  • the adjustment housing 32 can, as such, as is likewise shown in FIG. 4 , be adjusted in the direction of the arrow 34 , transverse to the rotor axis 16 .
  • the adjustment housing 32 is pushed into a home position by adjustment springs 36 .
  • the adjustment housing 32 borders two pressure chambers 38 and 40 , lying radially outward (see FIG. 4 ).
  • the pressurizing of the pressure chamber 40 via a pressurizing medium moves the adjustment housing 32 toward the left as shown in FIG. 4 , counter to the force of the adjustment springs 36 .
  • the eccentric position of the rotor 18 inside the adjustment housing 32 is altered, and thus the size of the crescent-shaped pressure compartment 42 ; accordingly, the pump capacity of the pump is altered.
  • the adjustment housing 32 is enclosed radially by a primary housing 44 .
  • the primary housing 44 , the adjustment housing 32 , and the rotor 18 , with the vanes 22 are located axially between the two thrust surfaces 24 and 26 .
  • a suction intake 46 and a pressure outlet 48 spatially separated from the suction intake 46 , are provided in the housing floor 30 .
  • the pressure intake 46 and the pressure outlet 48 extend thereby in the axial direction, through the housing floor 30 into the pressure compartment 42 .
  • the axial extension A of the primary housing 44 is slightly greater than the axial extension of the adjustment housing 32 as well as the rotor 18 , including the vanes 22 .
  • the axial extension of the primary housing in the region between the two thrust surfaces 24 and 26 is greater than the axial extension of the adjustment housing 32 and the rotor 18 , together with the vanes 22 , in the range of 5/1,000 mm-5/100 mm.
  • the pump 10 can thus be operated in an operationally stable manner.
  • the axial extension between the thrust surfaces 24 , 26 of the adjustment housing 32 , the rotor 18 and the vanes 22 is of the same size; thus, the components are of identical height.
  • the specified components may made of the same or a similar material, such that their thermal expansion behavior is the same to the greatest extent possible.
  • two inner races 72 are provided encircling the rotor shaft 20 , wherein one inner race 72 rests against the upper thrust surface 24 and one inner race 72 rests against the lower thrust surface 26 .
  • the suction intake 46 is encompassed by an encircling gasket 50 disposed on the housing floor 30 .
  • the gasket 50 is inserted thereby (see FIGS. 2 and 3 ) in sections in the axial direction, and in particular, halfway, in the housing floor 30 .
  • the gasket 50 thus separates the region of the pressure outlet 48 from the region of the suction intake 46 .
  • the suction intake 46 and the pressure outlet 48 are both provided, adjacent to one another, on the bottom of the pump 10 .
  • the primary housing 44 is encompassed by an external housing 52 .
  • the external housing 52 extends in the axial direction beyond the primary housing 44 , such that the housing floor 30 is covered approximately halfway by the external housing 52 .
  • the housing floor 30 exhibits a shoulder 54 , which rises in the radial direction, which is substantially flush with the external surface of the outer housing 52 .
  • An encompassing sealing ring 56 is provided in the region of the shoulder 54 .
  • an encompassing sealing ring 58 is likewise provided on the housing floor 30 .
  • alignment pins 60 are provided, extending in the axial direction.
  • the primary housing 52 can be flange-mounted on the housing cover 28 by connecting screws 62 .
  • the rotor shaft 20 passes through the housing cover 28 .
  • the rotor shaft 20 can be made to rotate via its free end 64 .
  • the rotor shaft 20 is also rotationally coupled to the rotor 18 .
  • the rotor shaft 20 is, moreover, rotationally supported via a thrust ring 68 , attached to the rotor shaft 20 via a screw 66 , and rotationally supported on the housing floor 30 via a bearing bushing 60 provided on the housing floor 30 .
  • FIG. 5 the pump 10 depicted in FIGS. 1-4 is shown in an installation situation.
  • the external housing 52 that is adjoined to the shoulder 54 on the housing floor in a flush manner is inserted in a cylindrical accommodation 74 .
  • a seal between the housing floor 30 and the accommodation 74 is created by the sealing ring 56 .
  • a channel 76 is provided in the region of the floor of the accommodation 74 , which is open toward the floor 30 , bordered by an encompassing wall 78 .
  • the upper side of the channel 76 facing the housing floor 30 , rests tightly against the gasket 50 thereby. In this way, the channel 76 is connected in a sealed manner to the suction intake 46 for the pump 10 , under tension.
  • the tensioning can, for example, be provided via the seal 50 or via a spring element that can be provided.
  • the pressure outlet 48 provided in the housing floor 30 opens into a pressure channel 80 , which runs along the outer side of the wall 78 of the channel 76 .
  • the medium conveyed by the pump 10 can be supplied to the respective load via the pressure channel 80 .
  • FIG. 5 with an assembly of this type the suction side, as well as the pressure side, of the pump 10 can lead to the pump axially from below.
  • the axial extension of the external housing 52 is selected thereby such that in the installed state, a slight axial gap is provided between the shoulder 54 and the end surface of the external housing 52 facing the shoulder 54 . In this way, the two end surfaces of the primary housing 44 facing one another come to rest in a sealed manner against the two thrust surfaces 24 , 26 .
  • the pressure in the pressure channel 80 also increases. As shown in FIG. 1 , the crosshatched area of the housing floor 30 is pressurized, when the pressure in the pressure channel 80 is increased. This leads to a decrease of the axial gap, whereby axial gap compensation is provided. As shown in FIG. 5 , the housing floor 30 is then pressed more strongly against the primary housing 44 and the primary housing is pressed more strongly against the housing cover 28 . Nevertheless, due to the greater axial extension of the primary housing 44 than of the adjustment housing 32 , the rotor 18 and the vane 22 , no clamping of these moving parts occurs inside the housing 12 .
  • the pump 10 functions in a functionally stable manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
US14/627,234 2014-02-21 2015-02-20 Adjustable vane pump Abandoned US20150240807A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014203193.1 2014-02-21
DE102014203193.1A DE102014203193B4 (de) 2014-02-21 2014-02-21 Verstellbare Flügelzellenpumpe

Publications (1)

Publication Number Publication Date
US20150240807A1 true US20150240807A1 (en) 2015-08-27

Family

ID=53782380

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/627,234 Abandoned US20150240807A1 (en) 2014-02-21 2015-02-20 Adjustable vane pump

Country Status (3)

Country Link
US (1) US20150240807A1 (de)
CN (1) CN104863849A (de)
DE (1) DE102014203193B4 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016108944A1 (de) * 2016-05-13 2017-11-16 Joma-Polytec Gmbh Verstellbare Flügelzellenpumpe

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451344A (en) * 1967-07-13 1969-06-24 Webster Electric Co Inc Vane pump
US3523746A (en) * 1968-10-31 1970-08-11 Racine Hydraulics Inc Fluid translating device
US3642388A (en) * 1969-04-09 1972-02-15 Renault Variable-capacity vane pumps
US3964844A (en) * 1973-09-24 1976-06-22 Parker-Hannifin Corporation Vane pump
US4222718A (en) * 1978-03-09 1980-09-16 Rexnord Inc. Linear motion thrust block for hydraulic pumps and motors
US4251192A (en) * 1978-12-07 1981-02-17 Clark Alonzo R Rotary pump with symmetrical by-pass and rotor with resiliently mounted vanes
US5183392A (en) * 1989-05-19 1993-02-02 Vickers, Incorporated Combined centrifugal and undervane-type rotary hydraulic machine
US5769617A (en) * 1996-10-30 1998-06-23 Refrigeration Development Company Vane-type compressor exhibiting efficiency improvements and low fabrication cost
US6042343A (en) * 1997-09-19 2000-03-28 Jodosha Kiki Co., Ltd. Variable displacement pump
US6352415B1 (en) * 1999-08-27 2002-03-05 Bosch Braking Systems Co., Ltd. variable capacity hydraulic pump
US20020037222A1 (en) * 2000-09-28 2002-03-28 Dalton William H. Vane pump with underv ane feed
US20060059904A1 (en) * 2004-09-23 2006-03-23 Alper Shevket Hydraulic traction system for vehicles
DE102006012357A1 (de) * 2006-03-17 2007-09-20 Zf Lenksysteme Gmbh Verdrängerpumpe mit variablem Fördervolumen
US20080099271A1 (en) * 2006-10-30 2008-05-01 Showa Corporation Variable Displacement Pump
US20090291008A1 (en) * 2006-09-26 2009-11-26 Yukio Uchida Variable displacement vane pump
US20120257962A1 (en) * 2009-11-09 2012-10-11 Fuad Koldzic Positive displacement pump
WO2014083063A1 (en) * 2012-11-27 2014-06-05 Pierburg Pump Technology Gmbh Variable displacement lubricant vane pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718488A (en) * 1980-07-07 1982-01-30 Nippon Jiirootaa Kk Vane pump
JP3861638B2 (ja) * 2001-08-31 2006-12-20 ユニシア ジェーケーシー ステアリングシステム株式会社 可変容量形ポンプ
JP5022139B2 (ja) * 2007-08-17 2012-09-12 日立オートモティブシステムズ株式会社 可変容量型ベーンポンプ
CN201202639Y (zh) * 2008-05-09 2009-03-04 长治液压有限公司 一种叶片泵
DE102010022677B4 (de) * 2010-06-04 2016-06-30 Nidec Gpm Gmbh Flügelzellenpumpe

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451344A (en) * 1967-07-13 1969-06-24 Webster Electric Co Inc Vane pump
US3523746A (en) * 1968-10-31 1970-08-11 Racine Hydraulics Inc Fluid translating device
US3642388A (en) * 1969-04-09 1972-02-15 Renault Variable-capacity vane pumps
US3964844A (en) * 1973-09-24 1976-06-22 Parker-Hannifin Corporation Vane pump
US4222718A (en) * 1978-03-09 1980-09-16 Rexnord Inc. Linear motion thrust block for hydraulic pumps and motors
US4251192A (en) * 1978-12-07 1981-02-17 Clark Alonzo R Rotary pump with symmetrical by-pass and rotor with resiliently mounted vanes
US5183392A (en) * 1989-05-19 1993-02-02 Vickers, Incorporated Combined centrifugal and undervane-type rotary hydraulic machine
US5769617A (en) * 1996-10-30 1998-06-23 Refrigeration Development Company Vane-type compressor exhibiting efficiency improvements and low fabrication cost
US6042343A (en) * 1997-09-19 2000-03-28 Jodosha Kiki Co., Ltd. Variable displacement pump
US6352415B1 (en) * 1999-08-27 2002-03-05 Bosch Braking Systems Co., Ltd. variable capacity hydraulic pump
US20020037222A1 (en) * 2000-09-28 2002-03-28 Dalton William H. Vane pump with underv ane feed
US20060059904A1 (en) * 2004-09-23 2006-03-23 Alper Shevket Hydraulic traction system for vehicles
DE102006012357A1 (de) * 2006-03-17 2007-09-20 Zf Lenksysteme Gmbh Verdrängerpumpe mit variablem Fördervolumen
US20090291008A1 (en) * 2006-09-26 2009-11-26 Yukio Uchida Variable displacement vane pump
US20080099271A1 (en) * 2006-10-30 2008-05-01 Showa Corporation Variable Displacement Pump
US20120257962A1 (en) * 2009-11-09 2012-10-11 Fuad Koldzic Positive displacement pump
WO2014083063A1 (en) * 2012-11-27 2014-06-05 Pierburg Pump Technology Gmbh Variable displacement lubricant vane pump

Also Published As

Publication number Publication date
DE102014203193A1 (de) 2015-08-27
DE102014203193B4 (de) 2019-10-31
CN104863849A (zh) 2015-08-26

Similar Documents

Publication Publication Date Title
US10533550B2 (en) Electric oil pump, in particular for a motor vehicle
JP3874300B2 (ja) ベーンポンプ
JP2005036801A (ja) スクロール式圧縮機
US9932982B2 (en) Rotary pump with a compact setting structure for adjusting the delivery volume
US10436199B2 (en) Rotary compressor
US20140377115A1 (en) Internal Gear Pump
CA2912705C (en) Axially split pump
KR20160068648A (ko) 축방향 분할형 펌프
JP6444166B2 (ja) 可変容量ポンプ
US10240617B2 (en) Water pump bearing with active condensate purging system
US20150240807A1 (en) Adjustable vane pump
US9964108B2 (en) Variable displacement oil pump
CN109154294B (zh) 干式运行的叶片气泵
CN104929714B (zh) 气门正时控制器
US10696280B2 (en) Vacuum pump with rotor shaft supported by friction bearings
CN107044413B (zh) 叶片泵
US20180245592A1 (en) Lubricated automotive vacuum pump
CN109416043B (zh) 机动车真空泵
JP2010112174A (ja) ロータリ圧縮機
JP2007332919A (ja) スクロール圧縮機
JP6582244B2 (ja) スクロール圧縮機
KR100634873B1 (ko) 워터 펌프의 이물질 배출구조
KR102519962B1 (ko) 윤활유-밀봉된 진공 펌프
CN109415938B (zh) 带有一体式法兰元件的机动车辅助装置真空泵
US20090238680A1 (en) Pumping unit

Legal Events

Date Code Title Description
AS Assignment

Owner name: JOMA-POLYTEC GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:REIBER, MARC;GULDE, THOMAS;SIGNING DATES FROM 20141007 TO 20141009;REEL/FRAME:034993/0516

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION