EP0816680B1 - Flügelzellenpumpe - Google Patents
Flügelzellenpumpe Download PDFInfo
- 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
Links
- 238000007906 compression Methods 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
- 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)
Description
- Figur 1
- schematisch einen Ausschnitt, nämlich einen Pumpenabschnitt, einer doppelhubigen Flügelzellenpumpe im Querschnitt, und
- Figur 2
- ein Diagramm des Konturverlaufs und des Volumenverlaufs einer Förderzelle.
Claims (8)
- Flügelzellenpumpe mit einem Rotor (5), der zur verschieblichen Aufnahme von Flügeln (11) radial verlaufende Schlitze (9) aufweist und der mit seinen Stirnflächen an Dichtflächen anliegt, die mit Saug- und Druckbereichen zugeordneten Ansaug- und Förderöffnungen versehen sind, und mit einem die Flügel (11) umgebenden, Saug-, Vorkompressions- und Druckbereiche bildenden Konturring (15), dadurch gekennzeichnet, daß der Konturring (15) so ausgebildet ist, daß die kinematische Vorkompression in einer Förderzelle größer als die gewünschte Vorkompression ist, und daß die Ansaugöffnung (21) eine in Drehrichtung verlaufende Öffnungserweiterung (33) aufweist, die einen steilen Druckanstieg im Vorkompressionsbereich (125) auf den gewünschten Wert abschwächt.
- Flügelzellenpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnungserweiterung (33) als Kerbe (33') ausgebildet ist, deren Spitze in Drehrichtung zeigt.
- Flügelzellenpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sich die Öffnungserweiterung (33) maximal soweit erstreckt, daß eine Trennung zwischen Ansaugöffnung (21) und Förderöffnung (29) über eine Förderzelle (17) gewährleistet ist.
- Flügelzellenpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Öffnungserweiterung (33) sich mindestens soweit in Drehrichtung erstreckt, daß eine Verbindung zwischen Förderöffnung (29) und Ansaugöffnung (21) über eine Förderzelle (17) gerade noch nicht besteht.
- Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Konturring (15) so ausgebildet ist, daß sich das Volumen einer Förderzelle (17) im Vorkompressionsbereich (125) verringert.
- Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwei Saug-, Vorkompressions- und Druckbereiche ausgebildet sind.
- Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Hub eines Flügels bei insgesamt zehn Flügeln im Vorkompressionsbereich über einen Winkelbereich von mindestens 30° größer 3,5µm/Grad ist.
- Flügelzellenpumpe nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Dichtflächen als Druckplatte (20) ausgebildet sind, und daß die Öffnungserweiterung (33) als Nut in eine dem Rotor (5) zugewandte Fläche der Druckplatte (20) eingebracht ist, die zur Ansaugöffnung randoffen ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19626211A DE19626211C2 (de) | 1996-06-29 | 1996-06-29 | Flügelzellenpumpe |
DE19626211 | 1996-06-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0816680A2 EP0816680A2 (de) | 1998-01-07 |
EP0816680A3 EP0816680A3 (de) | 1998-08-26 |
EP0816680B1 true EP0816680B1 (de) | 2003-03-12 |
Family
ID=7798447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97110211A Expired - Lifetime EP0816680B1 (de) | 1996-06-29 | 1997-06-23 | Flügelzellenpumpe |
Country Status (4)
Country | Link |
---|---|
US (1) | US5975868A (de) |
EP (1) | EP0816680B1 (de) |
JP (1) | JP4072219B2 (de) |
DE (2) | DE19626211C2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6497557B2 (en) * | 2000-12-27 | 2002-12-24 | Delphi Technologies, Inc. | Sliding vane pump |
WO2005001289A2 (de) * | 2003-06-30 | 2005-01-06 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Flügel- oder rollenzellenpumpe |
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 (en) * | 2008-10-08 | 2010-04-08 | Magna Powertrain Inc. | Direct control variable displacement vane pump |
CN102203422B (zh) | 2008-11-07 | 2014-04-02 | Stt技术有限公司(麦格纳动力系有限公司和Shw有限公司的合资公司) | 完全潜没的一体式电动油泵 |
US8696326B2 (en) * | 2009-05-14 | 2014-04-15 | Magna Powertrain Inc. | Integrated electrical auxiliary oil pump |
Family Cites Families (7)
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 |
-
1996
- 1996-06-29 DE DE19626211A patent/DE19626211C2/de not_active Expired - Fee Related
-
1997
- 1997-06-23 EP EP97110211A patent/EP0816680B1/de not_active Expired - Lifetime
- 1997-06-23 DE DE59709468T patent/DE59709468D1/de not_active Expired - Lifetime
- 1997-06-27 JP JP17241697A patent/JP4072219B2/ja not_active Expired - Fee Related
- 1997-06-30 US US08/885,600 patent/US5975868A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19626211A1 (de) | 1998-01-02 |
US5975868A (en) | 1999-11-02 |
JPH1061566A (ja) | 1998-03-03 |
DE19626211C2 (de) | 2002-03-14 |
EP0816680A3 (de) | 1998-08-26 |
JP4072219B2 (ja) | 2008-04-09 |
EP0816680A2 (de) | 1998-01-07 |
DE59709468D1 (de) | 2003-04-17 |
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