US20070148011A1 - Vane-cell pump provided with a deep-drawn metal-sheet pot - Google Patents

Vane-cell pump provided with a deep-drawn metal-sheet pot Download PDF

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Publication number
US20070148011A1
US20070148011A1 US10/557,513 US55751304A US2007148011A1 US 20070148011 A1 US20070148011 A1 US 20070148011A1 US 55751304 A US55751304 A US 55751304A US 2007148011 A1 US2007148011 A1 US 2007148011A1
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US
United States
Prior art keywords
pump
recited
sheet metal
metal pot
stroke
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
US10/557,513
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English (en)
Inventor
Heiko Schulz-Andres
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.)
Magna Powertrain Hueckeswagen GmbH
Original Assignee
LuK Automobiltechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LuK Automobiltechnik GmbH and Co KG filed Critical LuK Automobiltechnik GmbH and Co KG
Assigned to LUK AUTOMOBILTECHNIK GMBH & CO. KG reassignment LUK AUTOMOBILTECHNIK GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHULZ-ANDRES, HEIKO
Publication of US20070148011A1 publication Critical patent/US20070148011A1/en
Abandoned 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
    • F04C2/30—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
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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
    • 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
    • F04C2/3446—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 the inner and outer member being in contact along more than one line or surface
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/24—Manufacture essentially without removing material by extrusion
    • 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

Definitions

  • the present invention relates to a pump, e.g., for conveying lubricating oil to an internal combustion engine, in particular a multi-stroke vane-cell pump in which a rotatable group includes a rotor having vanes that are movable at least in a radial direction, a stroke profile along which the vane heads slide tightly and two axial lateral lids in the form of lateral plates or casing walls.
  • a pump e.g., for conveying lubricating oil to an internal combustion engine, in particular a multi-stroke vane-cell pump in which a rotatable group includes a rotor having vanes that are movable at least in a radial direction, a stroke profile along which the vane heads slide tightly and two axial lateral lids in the form of lateral plates or casing walls.
  • Such pumps are known. Their lateral plates have axial inlet openings and outlet openings which must be separated by sealing devices or the like according to their pressure areas, for example, and therefore result in a great overall axial length in such vane-cell pumps.
  • the components of the known rotatable groups such as lateral plates made of sintered steel and contour profile rings of solid steel or sintered steel are also accordingly designed with thick walls and thus require a great radial space as well as a great axial space.
  • the object of the present invention is thus to provide a pump which does not have these disadvantages.
  • a pump for conveying lubricating oil to an internal combustion engine, in particular a multi-stroke vane-cell pump in which the rotatable group has a rotor having vanes that are movable at least in a radial direction, a stroke profile along which the vane heads slide tightly and two axial lateral lids such as lateral plates or casing walls, the stroke profile and a first axial lateral plate being formed by a sheet metal pot.
  • the sheet metal pot is preferably manufacturable by deep drawing.
  • a pump in which a second axial lateral plate is formed by a sheet metal lid is also preferred.
  • a pump according to the present invention is characterized in that the sheet metal lid has an embossed shoulder having an outside profile in the shape of the stroke profile. This has the advantage that after insertion into the sheet metal pot, the sheet metal lid covers the rounded edges of the sheet metal pot formed by the deep-drawing operation and thus creates a narrow sealing gap within the rotatable group.
  • the sheet metal lid may be manufactured by precision blanking or fine-edge blanking.
  • a pump according to the present invention is characterized in that the intake openings are formed by radial openings in the sheet metal pot. This has the advantage that the rotatable group has a narrow design because the suction channel may be situated around the sheet metal pot radially and need not be situated axially on the opposite side of the pressure channel.
  • a pump in which the outlet openings are formed by axial openings (pressure pockets) and optionally the at least one radial opening in the sheet metal pot is preferred.
  • the radial outlet opening is closable by a temperature switching valve or a pressure switching valve and thus establishes a switchable delivery area.
  • a pump according to the present invention is characterized in that the temperature switching valve has an excess stroke spring. This has the advantage that after the radial outlet opening is sealed by the temperature switching valve and if there is no further expansion of a thermal expansion element due to an increase in temperature of the lubricating oil, the expansion element is able to execute an additional expansion movement against the excess stroke spring without any deformation or destruction.
  • the sheet metal pot of the rotatable group and possibly the temperature switching valve or pressure switching valve are integrated into a plastic casing.
  • the plastic casing is preferably finished by injection molding and therefore does not require any reworking.
  • the advantage here is that a rotatable group encapsulated in sheet metal is integrated into a plastic casing, making it possible to utilize the advantages of the two types of materials.
  • Another pump according to the present invention is characterized in that the axial outlet opening of the switchable conveyor area is closable by a reed nonreturn valve.
  • the reed nonreturn valve has the same shape as the stroke profile curvature.
  • the reed nonreturn valve is also mounted on a journal made of plastic in the plastic casing.
  • the reed nonreturn valve is also protected from overstrain by a stroke stop in the plastic casing.
  • This design of the reed nonreturn valve has the advantage of being very inexpensive while also being integrated into the pump in a neutral manner in terms of space.
  • a pump according to the present invention is characterized in that the sheet metal not has a notched or impressed cold start ring, which guides the vanes outward according to the stroke profile beneath the vanes in a cold operating state and steers against the stroke profile.
  • the sheet metal lid has a notched or impressed cold start ring.
  • a pump according to the present invention is characterized in that the sheet metal lid has apparent pressure pockets impressed in it, i.e., pressure pockets without through-openings which produce only an axial pressure surface compensation for the rotor in the pressure area.
  • the radial outlet opening(s) of the switchable delivery area open(s) into a channel opening directly by a short path into the intake area of the second nonswitchable delivery area.
  • FIG. 1 shows a view of the open pump.
  • FIG. 2 shows section B-B from FIG. 1 .
  • FIG. 3 shows a cross section of the sheet metal pot and the rotor.
  • FIG. 4 shows a detail of the sheet metal pot and the sheet metal lid.
  • FIG. 5 shows a cross section of the rotatable group and the temperature switching valve.
  • FIG. 6 shows a cross section of the temperature switching valve in the open state.
  • FIG. 7 shows the pump casing having the nonreturn valve.
  • FIG. 8 shows section D-D from FIG. 7 .
  • FIG. 9 shows section C-C from FIG. 7 .
  • FIG. 10 shows a cross section of an embodiment of the cold start ring.
  • FIG. 11 shows a cross section of another embodiment of the cold start ring.
  • FIG. 1 shows a top view of the pump according to the present invention in its casing without the cover.
  • Sheet metal pot 1 in which the stroke profile is designed contains the other parts of the rotatable group such as vanes 3 , which are displaceably situated in radial slots 5 in rotor 7 .
  • Rotor 7 has a recess 9 in which for example the crankshaft of an internal combustion engine engages and thus drives the lubricating oil pump. This is referred to as a neck-of-shaft pump.
  • the rotatable group is situated together with sheet metal pot 1 in a plastic casing 11 and is sealed by the sheet metal lid (not shown here).
  • the rotatable group, completely encapsulated in sheet metal thus has the advantage that there is no change in friction pairing.
  • Sheet metal pot 1 is partially surrounded inside plastic casing 11 by a channel 13 , which is subjected to the intake pressure of the pump. Due to the shape of the stroke profile, two pressure areas 15 . 1 and 15 . 2 in which the cells between the vanes, rotor, lift ring and lateral plates become smaller and thus eject the pressure medium, and two intake areas 17 . 1 and 17 . 2 in which the corresponding cells become larger and thus draw in the medium, are formed inside the rotatable group.
  • the function of such a double-stroke vane-cell pump is known and need not be explained further here.
  • a temperature switching valve 19 which has an expansion element inside a casing 21 , this expansion element being able to press a valve compression plate 25 against sheet metal pot 1 via a pin 23 against the force of a restoring spring 27 when there is a temperature increase in the lubricating oil.
  • sheet metal pot 1 there is a radial opening (not shown here) from which pressure pocket 15 . 1 is able to convey pressurized oil into intake channel 13 as long as the temperature switching valve remains in this open state.
  • the oil into intake by pressure pocket 15 . 1 thus goes through channel 13 to intake pocket 17 . 2 of the second half of the pump in a pressureless operation, thus permitting oil intake by the pump without any great losses.
  • Sheet metal pot 1 therefore has one or more radial openings in the intake area of suction pocket 15 . 2 .
  • suction pocket 17 . 1 of the first pump part has radial openings (not visible here) in sheet metal pot 1 through which oil may be drawn in from suction channel 29 .
  • Suction channel 29 like suction channel 13 , is connected to intake connection 31 from which the oil may be drawn in from the area of the internal combustion engine, e.g., the oil pan. The oil is then ejected via the lubricating oil pump in pressure channel 32 and sent under pressure through pressure connection 34 to the internal combustion engine.
  • a pressure-limiting valve (not shown here) is provided in area 36 of the plastic casing and when the maximum allowed pressure in pressure area 32 is exceeded, this valve opens and the excess oil flows through outflow channel 38 back to intake area 29 .
  • FIG. 2 shows section B-B from FIG. 1 .
  • Sheet metal pot 1 is embedded in plastic casing 11 .
  • Sheet metal pot 1 contains the rotatable group and thus, among other things, rotor 7 , a cross section of which is shown here.
  • the rotatable group is sealed by a sheet metal lid 40 .
  • the stroke profile is shaped directly into the sheet metal, as illustrated in FIG. 1
  • sheet metal bottom 42 of the sheet metal pot forms the first axial lateral plate of the rotatable group.
  • Lid 40 has a shoulder 44 protruding into the upper edge of sheet metal pot 1 , also having the shape of the stroke profile in its outer profile and thus forming the second axial lateral plate of the rotational group.
  • multiple radial openings 46 and 48 are introduced into sheet metal pot 1 in the suction area. Intake openings 46 and 48 open into intake channels 29 and 13 , a top view of which is shown in FIG. 1 .
  • FIG. 3 shows a detailed view of the design of sheet metal pot 1 in plastic casing 11 and rotor 7 .
  • rotor 7 On its lateral faces, rotor 7 has two grooves 52 in which cold start ring 54 engages.
  • Cold start ring 54 is notched or impressed out of sheet metal pot 1 and is also in the shape of the stroke profile on a reduced scale.
  • This cold start ring thus grips in rotor grooves 52 under the vanes and lifts them along the shape of the profile so that they slide approximately along the contour ring and seal it, even when the vanes are not pressed out beneath the vane by centrifugal forces or by additional compressive forces. Reliable contact of the vane heads with the contour ring is thus ensured even during a cold start and at low rotational speeds.
  • FIG. 4 shows in particular how sheet metal pot 1 works together with sheet metal lid 40 in detail. Due to the manufacturing procedure, rounded area 50 is formed by the deep-drawing operation on sheet metal pot 1 , but this area would be problematical as a sealing surface or as a running surface for the vanes. Therefore, sheet metal lid 40 , which may be manufactured as a flat part using a manufacturing method other than deep drawing, has a sharper-edged shaping of shoulder 44 , which covers rounded area 50 and thus ensures an adequate seal of the rotatable group on the top side of rotor 7 and the vane heads. The vanes and their lateral walls and their vane head are thus also accommodated inside the rectangular rotatable group space in a sufficiently sealed manner.
  • FIG. 5 shows a cross section of the rotatable group and the temperature switching valve.
  • the same parts are labeled with the same reference numbers and will not be explained again here to avoid repetition.
  • the temperature switching valve is extended due to the increased temperature of the lubricating oil in this diagram, sealing with its valve body 25 an opening 56 in the pressure area.
  • pressure pocket 15 . 1 from FIG. 1 is unable to convey oil into the pressureless circulation of the channel 13 and thus conveys it via a nonreturn valve 64 , to be explained in greater detail below, into pressure channel 66 , so that the two pressure pockets meet the lubricating oil demand of the internal combustion engine.
  • FIG. 6 shows the temperature switching valve in the open state, i.e., in the cooled state.
  • Valve closing body 25 has moved a distance away from radial pressure opening 56 of sheet metal pot 1 and the pressurized oil from area 15 . 1 is then able to flow through opening 56 into channel 13 for pressureless circulation up to intake pocket 17 . 2 from FIG. 1 .
  • spring pot 68 also guides operating pin 23 of the temperature switching valve. Restoring spring 27 has pressed the operating pin and the cooled expansion element back via spring pot 68 .
  • FIG. 8 shows section D-D from FIG. 7 and thus stroke end stop 76 of valve blade 72 .
  • FIG. 9 shows plastic pin 74 which supports spring blade 72 in plastic casing 11 .
  • FIG. 10 shows a cross section of an alternative version of cold start ring 54 . 1 in comparison with the version of cold start ring 54 in FIG. 3 .
  • Cold start contour 54 . 1 is pressed out of sheet metal pot 1 by blanking and thus engages beneath vane 3 which is situated in lift ring 7 and thus guides vane 3 along the stroke profile of sheet metal lid 1 .
  • FIG. 11 shows another variant of cold start contour 54 . 2 , which is manufactured by displacement of material out of sheet metal pot 1 , and thus, here again, is able to guide vane 3 toward the profile.
  • Axial and radial openings are provided in the pressure area of the switched stage.
  • the openings in the radial direction with the temperature switching valve or a pressure switching valve are used for pressureless circulation. In doing so, the oil is flushed back out of the pressure side and into the intake space for intake of the next suction stage.
  • the thus obtained channel guidance yields only minor flow losses due to deflection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
US10/557,513 2003-05-26 2004-05-15 Vane-cell pump provided with a deep-drawn metal-sheet pot Abandoned US20070148011A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10323572.8 2003-05-26
DE10323572 2003-05-26
PCT/DE2004/001032 WO2004109111A1 (fr) 2003-05-26 2004-05-15 Pompe à cellules en ailettes à pot en tôle d'acier emboutie

Publications (1)

Publication Number Publication Date
US20070148011A1 true US20070148011A1 (en) 2007-06-28

Family

ID=33494749

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/557,513 Abandoned US20070148011A1 (en) 2003-05-26 2004-05-15 Vane-cell pump provided with a deep-drawn metal-sheet pot

Country Status (8)

Country Link
US (1) US20070148011A1 (fr)
EP (1) EP1631745B1 (fr)
JP (1) JP2007500309A (fr)
KR (1) KR20060019557A (fr)
CN (1) CN100408858C (fr)
AT (1) ATE377710T1 (fr)
DE (1) DE502004005440D1 (fr)
WO (1) WO2004109111A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130052057A1 (en) * 2009-11-26 2013-02-28 Hella Kgaa Vane pump apparatus and method
US20160146331A1 (en) * 2013-06-18 2016-05-26 Continental Automotive Gmbh Delivery device for delivering oil from a reservoir to a transmission of a motor vehicle
WO2017112499A1 (fr) * 2015-12-23 2017-06-29 Sabic Global Technologies B.V. Pièces en matériau hybride métal-plastique et leur procédé pour la fabrication
US9920756B2 (en) 2014-02-27 2018-03-20 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with a plastic composite structure
US11396811B2 (en) * 2017-12-13 2022-07-26 Pierburg Pump Technology Gmbh Variable lubricant vane pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109282A1 (fr) * 2008-03-01 2009-09-11 Ixetic Hückeswagen Gmbh Couvercle de corps de pompe à vide
CN105673485B (zh) * 2016-01-15 2017-09-19 沈阳天朗艾尔压缩机有限公司 一种滑片式空气压缩机
CN117759534B (zh) * 2024-02-22 2024-04-26 苏州英磁新能源科技有限公司 一种自适应可变容量叶片泵

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US940246A (en) * 1908-08-24 1909-11-16 John C Hagerty Rotary engine.
US3809511A (en) * 1972-05-03 1974-05-07 Bosch Gmbh Robert Valve arrangement for a compressor
US4538974A (en) * 1983-09-17 1985-09-03 Glyco Antriebstechnik Gmbh Vane-type oil pump for automotive vehicle
US5310326A (en) * 1992-09-14 1994-05-10 Mainstream Engineering Corporation Rotary compressor with improved bore configuration and lubrication system
US5642991A (en) * 1996-03-11 1997-07-01 Procon Products Sliding vane pump with plastic housing
US20010012486A1 (en) * 1998-06-24 2001-08-09 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Hydraulic delivery device

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JPS5797091A (en) * 1981-10-01 1982-06-16 Kayaba Ind Co Ltd Vane pump
US4656710A (en) * 1985-08-19 1987-04-14 Noman Maciejewski Method of making a hydraulic pump housing
FR2660221B1 (fr) * 1990-03-31 1995-07-13 Barmac Luk Automobiltechnik Gm Procede de fabrication d'un carter en tole par emboutissage profond.
CN2148837Y (zh) * 1992-10-07 1993-12-08 大连液压件厂 转向助力泵
DE4331489A1 (de) * 1993-09-16 1995-03-23 Sihi Gmbh & Co Kg Flüssigkeitsringgaspumpe in Blockbauweise
CA2131081C (fr) * 1993-09-16 2004-01-20 Udo Segebrecht Pompe a essence a anneau liquide
DE19913632C2 (de) * 1999-03-25 2001-02-08 Siemens Ag Flüssigkeitsringpumpe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US940246A (en) * 1908-08-24 1909-11-16 John C Hagerty Rotary engine.
US3809511A (en) * 1972-05-03 1974-05-07 Bosch Gmbh Robert Valve arrangement for a compressor
US4538974A (en) * 1983-09-17 1985-09-03 Glyco Antriebstechnik Gmbh Vane-type oil pump for automotive vehicle
US5310326A (en) * 1992-09-14 1994-05-10 Mainstream Engineering Corporation Rotary compressor with improved bore configuration and lubrication system
US5642991A (en) * 1996-03-11 1997-07-01 Procon Products Sliding vane pump with plastic housing
US20010012486A1 (en) * 1998-06-24 2001-08-09 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Hydraulic delivery device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130052057A1 (en) * 2009-11-26 2013-02-28 Hella Kgaa Vane pump apparatus and method
US9212660B2 (en) * 2009-11-26 2015-12-15 Hella Kgaa Hueck & Co. Vane pump apparatus and method
US20160146331A1 (en) * 2013-06-18 2016-05-26 Continental Automotive Gmbh Delivery device for delivering oil from a reservoir to a transmission of a motor vehicle
US9797501B2 (en) * 2013-06-18 2017-10-24 Continental Automotive Gmbh Delivery device for delivering oil from a reservoir to a transmission of a motor vehicle
US9920756B2 (en) 2014-02-27 2018-03-20 Schwäbische Hüttenwerke Automotive GmbH Rotary pump with a plastic composite structure
WO2017112499A1 (fr) * 2015-12-23 2017-06-29 Sabic Global Technologies B.V. Pièces en matériau hybride métal-plastique et leur procédé pour la fabrication
US11396811B2 (en) * 2017-12-13 2022-07-26 Pierburg Pump Technology Gmbh Variable lubricant vane pump

Also Published As

Publication number Publication date
CN100408858C (zh) 2008-08-06
ATE377710T1 (de) 2007-11-15
WO2004109111A1 (fr) 2004-12-16
KR20060019557A (ko) 2006-03-03
CN1795333A (zh) 2006-06-28
DE502004005440D1 (de) 2007-12-20
EP1631745B1 (fr) 2007-11-07
JP2007500309A (ja) 2007-01-11
EP1631745A1 (fr) 2006-03-08

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