EP0816680B1 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

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Publication number
EP0816680B1
EP0816680B1 EP97110211A EP97110211A EP0816680B1 EP 0816680 B1 EP0816680 B1 EP 0816680B1 EP 97110211 A EP97110211 A EP 97110211A EP 97110211 A EP97110211 A EP 97110211A EP 0816680 B1 EP0816680 B1 EP 0816680B1
Authority
EP
European Patent Office
Prior art keywords
opening
vane pump
compression
delivery
pump according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97110211A
Other languages
German (de)
English (en)
Other versions
EP0816680A2 (fr
EP0816680A3 (fr
Inventor
Ivo Agner
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.)
LuK Fahrzeug Hydraulik GmbH and Co KG
Original Assignee
LuK Fahrzeug Hydraulik 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 Fahrzeug Hydraulik GmbH and Co KG filed Critical LuK Fahrzeug Hydraulik GmbH and Co KG
Publication of EP0816680A2 publication Critical patent/EP0816680A2/fr
Publication of EP0816680A3 publication Critical patent/EP0816680A3/fr
Application granted granted Critical
Publication of EP0816680B1 publication Critical patent/EP0816680B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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

Definitions

  • the invention relates to a vane pump according to Preamble of claim 1.
  • Vane pumps of this type are generally known. They usually include a rotor, in the peripheral wall of the wing receiving slots are introduced. The rotor turns inside a contour ring that is used in a double-stroke vane pump forms two crescent-shaped delivery rooms, that are passed through by the wings. Each of these delivery spaces is an inlet opening and a Assigned outlet opening. Through the inlet opening the fluid to be pumped into one between two Suction-trained feed cell and sucked ejected through the outlet opening.
  • the delivery of the fluid is achieved in that due to the geometry of the contour ring Increase vane volume in the intake area and reduce in the print area.
  • the object of the invention is therefore to to create a vane pump where none or only slight cavitation noises occur.
  • a vane pump 1 has a housing 3, in which a rotor 5 rotatably mounted clockwise is.
  • a peripheral wall 7 of the rotor 5 are several in the present embodiment ten radially running slots 9 introduced.
  • the slots 9 are used to accommodate radially movable wings 11, with their end facing away from the rotor during the rotation of the rotor 5 on an inner wall 13 of a contour ring 15.
  • the contour ring 15 is designed so that at a rotation of the rotor 5 that shown in Figure 2 Stroke course of the wing in a double-stroke Pump results.
  • Two angular ranges 101 in which the stroke -also a movement of the wings in another direction - im remains essentially constant.
  • These angular ranges another angular range follows, in which the wing moves radially outwards and thus is experiencing an increasing stroke.
  • Another Rotation of the rotor 5 presses the contour ring on the wing again radially inwards, the stroke reduction initially flat in an area 105, the means relatively slow, and in a subsequent one Angular range 107 is steeper, that is to say faster.
  • the angular range 107 then follows the one already specified Angular range 101.
  • the volume curve can be divided into three Subdivide areas, namely a suction area 119, a pre-compression area 125 and one Print area 131.
  • Figure 1 is partially as a sealing surface acting pressure plate 20 to recognize the -related the drawing level on the lower face of the Rotor 5 and the contour ring 15 is sealing. Another on the upper end of the rotor 5 adjacent also acting as a sealing surface Pressure plate is not shown. Between the peripheral wall 7 of the rotor 5, the inner wall 13 the contour ring 15, the two pressure plates and neighboring Wings 11 form conveyor cells 17 with a variable cell volume. In the intake area 119 increases the volume of each Delivery cell 17, so that by one in the lower Pressure plate 20 provided suction opening 21st Fluid is sucked into the cell.
  • the pre-compression area 125 a for example as a deepening in the surface of the pressure plate facing the rotor 20 trained breakthrough 33 which starts from the edge 23 of the suction opening 21 and extends in the direction of rotation.
  • This breakthrough 33 serves as an opening extension of the suction opening 21 into the pre-compression area 125.
  • the side lies in the area of the opening Area of a wing crossing the breakthrough not directly on the pressure plate, so that in the Delivery cell 17 fluid present during pre-compression flow back into the suction area 21 can.
  • suction opening 21 is formed as a notch 33 ', the tip in the direction of rotation of the rotor 5 shows, that is towards the following Print area. This results in the direction of rotation seen - a strongly decreasing flowable area the notch 33 '.
  • a delivery cell 17 that means the leading wing this cell, the suction area 119 and sucks due to the increasing cell volume, Fluid through the suction opening 21, for example from an oil sump. Very often it is sucked in Oil contains air previously, for example introduced by the gears of an automatic transmission has been.
  • the delivery cell 17 i.e. the trailing wing
  • the area boundary between suction area 119 and pre-compression area Has exceeded 125 is the connection between delivery cell 17 and suction opening 21 essentially interrupted. Within the pre-compression area the cell volume experiences a reduction, so the pressure inside the feed cell 17 due to the contour of the contour ring 15 rises sharply.
  • the delivery cell 17 it is possible to use the delivery cell 17 only open to the printing area, when the rear wing crossed the notch 33 ' Has. However, it is also possible to have an overlap allow, so that at least in the short term Connection between pressure area and suction area about the feed cell 17 and the notch 33 '. Because of the very small flow cross-section however, the notch 33 'does not result in any significant Short circuit.
  • the notch geometry results in an almost independent of operating pressure Pressure increase in the pre-compression area, as long as no connection with the operating pressure via the conveyor opening 29.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Claims (8)

  1. Pompe à palettes avec un rotor (5) qui présente des fentes (9) qui s'étendent radialement pour recevoir de façon mobile des palettes (11) et qui s'appuie sur des surfaces d'étanchéité avec ses surfaces frontales, lesquelles sont munies d'ouvertures d'aspiration et de refoulement associées à des zones d'aspiration et de pression et avec un anneau de contour (15) entourant les palettes (11) et formant des zones d'aspiration, de précompression et de pression, caractérisée en ce que l'anneau de contour (15) est formé de telle manière que la précompression cinématique dans une cellule de refoulement est supérieure à la précompression souhaitée et que l'ouverture d'aspiration (21) présente un élargissement d'ouverture (33) qui s'étend en direction de rotation et qui ramène à la valeur souhaitée une augmentation rapide de la pression dans la zone de précompression (125).
  2. Pompe à palettes selon la revendication 1, caractérisée en ce que l'élargissement d'ouverture (33) a la forme d'une entaille (33') dont le bout est orienté en direction de rotation.
  3. Pompe à palettes selon la revendication 1 ou 2, caractérisée en ce que l'élargissement d'ouverture (33) s'étend au maximum jusqu'à une distance telle qu'une séparation est assurée entre l'ouverture d'aspiration (21) et l'ouverture de refoulement (29) le long d'une cellule de refoulement (17).
  4. Pompe à palettes selon la revendication 1 ou 2, caractérisée en ce que l'élargissement d'ouverture (33) s'étend au minimum en direction de rotation jusqu'à ce qu'il n'y ait pas encore de liaison entre l'ouverture de refoulement (29) et l'ouverture d'aspiration (21) le long d'une cellule de refoulement (17).
  5. Pompe à palettes selon l'une des revendications précédentes, caractérisée en ce que l'anneau de contour (15) est formé de telle sorte que le volume d'une cellule de refoulement (17) se réduit dans la zone de précompression (125).
  6. Pompe à palettes selon l'une des revendications précédentes, caractérisée en ce que sont formées deux zones d'aspiration, de précompression et de pression.
  7. Pompe à palettes selon l'une des revendications précédentes, caractérisée en ce que l'élévation d'un palette pour au total dix palettes dans la zone de précompression est sur une zone d'angle d'au moins 30° supérieure à 3,5 µm/degré.
  8. Pompe à palettes selon l'une des revendications précédentes, caractérisée en ce que les surfaces d'étanchéité ont la forme de plaque de serrage (20) et que l'élargissement d'ouverture (33) est ménagé comme une rainure dans une surface de la plaque de serrage (20), orientée vers le rotor (5), et qui est formée de manière ouverte sur le bord vers l'ouverture d'aspiration.
EP97110211A 1996-06-29 1997-06-23 Pompe à palettes Expired - Lifetime EP0816680B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19626211 1996-06-29
DE19626211A DE19626211C2 (de) 1996-06-29 1996-06-29 Flügelzellenpumpe

Publications (3)

Publication Number Publication Date
EP0816680A2 EP0816680A2 (fr) 1998-01-07
EP0816680A3 EP0816680A3 (fr) 1998-08-26
EP0816680B1 true EP0816680B1 (fr) 2003-03-12

Family

ID=7798447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110211A Expired - Lifetime EP0816680B1 (fr) 1996-06-29 1997-06-23 Pompe à palettes

Country Status (4)

Country Link
US (1) US5975868A (fr)
EP (1) EP0816680B1 (fr)
JP (1) JP4072219B2 (fr)
DE (2) DE19626211C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6497557B2 (en) * 2000-12-27 2002-12-24 Delphi Technologies, Inc. Sliding vane pump
WO2005001289A2 (fr) * 2003-06-30 2005-01-06 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Pompe
RU2306458C2 (ru) * 2005-09-13 2007-09-20 Юрий Михайлович Волков Способ создания равномерного потока рабочей жидкости и устройство для его осуществления
RU2327900C1 (ru) * 2006-10-30 2008-06-27 Александр Анатольевич Строганов Роторная шиберная машина
US8333576B2 (en) * 2008-04-12 2012-12-18 Steering Solutions Ip Holding Corporation Power steering pump having intake channels with enhanced flow characteristics and/or a pressure balancing fluid communication channel
CA2679776A1 (fr) * 2008-10-08 2010-04-08 Magna Powertrain Inc. Pompe a ailettes, a commande directe de debit
RU2517641C2 (ru) * 2008-11-07 2014-05-27 ЭсТиТи ТЕКНОЛОДЖИС ИНК., Э ДЖОЙНТ ВЕНЧЕР ОФ МАГНА ПАУЭРТРЕЙН ИНК. ЭНД СХВ ГМБХ Погружной электронасос
US8696326B2 (en) * 2009-05-14 2014-04-15 Magna Powertrain Inc. Integrated electrical auxiliary oil pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3790314A (en) * 1972-05-22 1974-02-05 Abex Corp Vane pump having extended undervane suction ports
JPS60256580A (ja) * 1984-02-03 1985-12-18 Toyoda Mach Works Ltd ベ−ンポンプ
DE3579829D1 (en) * 1984-02-01 1990-10-31 Toyoda Machine Works Ltd Fluegelpumpe.
JPS61106991A (ja) * 1984-10-30 1986-05-24 Toyoda Mach Works Ltd ベ−ンポンプ
JPH0431682A (ja) * 1990-05-28 1992-02-03 Toyoda Mach Works Ltd ベーンポンプ
DE4126022A1 (de) * 1991-08-06 1993-02-11 Zahnradfabrik Friedrichshafen Fluegelzellenpumpe
DE4209840A1 (de) * 1992-03-26 1993-09-30 Zahnradfabrik Friedrichshafen Flügelzellenpumpe

Also Published As

Publication number Publication date
EP0816680A2 (fr) 1998-01-07
EP0816680A3 (fr) 1998-08-26
DE19626211A1 (de) 1998-01-02
US5975868A (en) 1999-11-02
JPH1061566A (ja) 1998-03-03
DE19626211C2 (de) 2002-03-14
DE59709468D1 (de) 2003-04-17
JP4072219B2 (ja) 2008-04-09

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