EP0906512B1 - Pompe a ailettes - Google Patents

Pompe a ailettes Download PDF

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Publication number
EP0906512B1
EP0906512B1 EP97929260A EP97929260A EP0906512B1 EP 0906512 B1 EP0906512 B1 EP 0906512B1 EP 97929260 A EP97929260 A EP 97929260A EP 97929260 A EP97929260 A EP 97929260A EP 0906512 B1 EP0906512 B1 EP 0906512B1
Authority
EP
European Patent Office
Prior art keywords
pressure
pressure plate
vane pump
region
opposite
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
EP97929260A
Other languages
German (de)
English (en)
Other versions
EP0906512A1 (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
Priority claimed from DE29612578U external-priority patent/DE29612578U1/de
Application filed by LuK Fahrzeug Hydraulik GmbH and Co KG filed Critical LuK Fahrzeug Hydraulik GmbH and Co KG
Publication of EP0906512A1 publication Critical patent/EP0906512A1/fr
Application granted granted Critical
Publication of EP0906512B1 publication Critical patent/EP0906512B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • 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
    • F04C15/0023—Axial sealings for working fluid

Definitions

  • the invention relates to a vane pump according to Preamble of claim 1.
  • Vane pumps of the type mentioned here are known from DE 28 35 816 A1. You assign one Rotor on, in the peripheral wall wings receiving slots are introduced. The rotor rotates within a contour ring, the preferably forms two crescent-shaped conveying spaces, that are passed through by the wings. In the Rotation of the rotor results in bigger and smaller becoming spaces. In operation of the vane pump there are suction and pressure areas. at a contour ring of the type mentioned here there are two separate pump sections with each a suction and a pressure area.
  • the side of the print area is limited on the outlet or delivery side by means of a close-fitting pressure plate and on the Conveyor side opposite side for example through the housing of the vane pump.
  • the vane pump has two tight pressure plates on the rotor, with the An opening is located on the delivery side opposite the pressure plate having a fluid connection between a preferably lower pressure range and one creates a closed pressure chamber. This will a pressure built up in this pressure chamber, which the The pressure plate bends slightly towards the rotor and presses close to the rotor. The one in the funding area built up pressure leads in the same way to a Acting on the pressure plate on the conveyor side a force that pushes this pressure plate close to the rotor presses.
  • the Fluid connection in the opposite of the delivery side Pressure plate a passage area that less than 1/3 of the passage area of the outlet opening the delivery-side pressure plate.
  • the Invention has the closing the pressure chamber Pressure plate that has an opening for connecting the includes lower pressure area with the pressure chamber, a further relatively small opening that from Pressure room in the other overhead Print area opens.
  • an opening is provided which is built in Location of the upper pressure area with the pressure chamber combines.
  • the print area below is sealed by the pressure plate to the pressure chamber.
  • An advantageous embodiment also consists in the pressure plate opposite the delivery side to be provided with two openings, each one Connection between a print area and the Establish pressure room and the high hydraulic Exhibit resistance. The sum of the two Resistance must exceed a value that to avoid a short circuit in the cold start phase necessary is.
  • FIG. 1 For a better understanding, let's start with general based on Figure 1 on the structure of a vane pump To be received.
  • This includes a housing 1, in which a channel leading to an outlet 3 is provided.
  • a consumer for example a power steering device with a fluid, for example hydraulic oil.
  • the housing has a circular interior 5 on which receives a contour ring 7 and a rotor 9, in the peripheral surface wing 8 receiving Slots are introduced.
  • the rotor 9 is over a drive shaft 11 rotated so that the wings 8 move within the contour ring 7, whose interior 5 is designed so that two crescent-shaped, also referred to as production rooms Open spaces are formed by the wings be run through. Between two circumferentially seen - neighboring wings are so-called Vane cells when the rotor rotates get smaller and bigger. This will Suction and pressure areas formed.
  • the end faces the contour ring 7 and the rotor 9 are applied Sealing surfaces on the pressure plates 17.1 and 17.2 be formed.
  • the vane pump is designed so that Hydraulic oil in the pressure area to the inside of the Rotors lying undersides of the wing - the so-called Under wing area - and this with Pressure applied. Through the in the lower wing area prevailing overpressure are the wings from the Slits are pressed radially outwards and thus lie sealing on the inside of the contour ring.
  • FIG. 2a shows an essentially annular groove 25 intended for the lower wing areas.
  • FIG. 2b shows an essentially annular groove 25 intended for the lower wing areas.
  • four independent, essentially ring segment-shaped Grooves 27 formed.
  • Figure 2a shows that the kidney-shaped Pressure areas 23 of the pressure plate on the pressure chamber side 17.2 merge into round channels 29. At least one or both channels 29 have a passage area, that is, flowed through cross-sectional area, that less than a 1/3 of the passage area of the Pressure areas 23 of the delivery-side pressure plate 17.1.
  • the vane pump according to Figure 3a has both on the outlet or delivery side F of the rotor as also on the opposite pressure chamber side D a pressure plate 17.1 or 17.2. Both pressure plates 17 lie close to the contour ring and rotor 51 and are said to have a leakage of Prevent hydraulic oil from the pressure areas.
  • the representation of the delivery-side pressure plate 17.1 in Figure 3a leaves two outlet channels 53.1 and 53.2 recognize each having a fluid connection between a pressure area and a conveyor respectively Create outlet area 55.
  • the pressure chamber side is on the opposite side Pressure plate 17.2 on the rotor 51.
  • she also has a channel 59, which is a fluid connection between a pressure range lower in the figure UD and a pressure chamber 61 produces.
  • This pressure chamber 61 is on the one hand by the pressure plate side pressure plate 17.2 and on the other hand formed by the housing.
  • the embodiment shown in Figure 3b differs different from the one just described in that the opening into the lower wing area Opening 63 not in the pressure plate on the pressure chamber side 17.2 but in the delivery pressure plate 17.1 is provided.
  • the Channel 59 of the pressure plate 17.2 not the lower one Print area but assigned to the upper print area. A change in the way the two work This results in pressure plates after the start-up phase However not.
  • FIG. 3c A third embodiment can be seen in FIG. 3c, which essentially corresponds to that in FIG 3a embodiment corresponds.
  • the pressure plate side pressure plate 17.2 a small, in essential ventilation channel 65 is provided, the connection between the Pressure chamber 61 and the upper pressure area creates.
  • the cross section of the channel 65 is dimensioned so that that its hydraulic resistance in particular for cold hydraulic oil with high viscosity is very large. Resistance should be on everyone Case be so large that in the cold start phase Oil flow from the lower pressure range over the pressure chamber 61 and the channel 65 in the upper pressure range, where the short circuit prevails, and then into the suction area is almost prevented.
  • this ventilation channel 65 exists in accumulating in the upper area of the pressure chamber 61 To let air escape. Therefore this is Vent channel 65 the overhead pressure area assigned. Through the ventilation achieved with it the pressure chamber 61 can reduce noise achieve.
  • Figure 3d shows a further embodiment, in which the pressure plate side pressure plate 17.2 two Has channels 71.
  • the upper channel 71.1 connects the upper pressure area with the pressure chamber 61, the lower channel 71.2 the lower pressure range with the Pressure chamber 61.
  • the cross sections of the two channels 71 are chosen so that the sum of the two individual hydraulic resistors for a viscous, cold oil is so big that almost no oil flow between the two pressure ranges developed by the pressure chamber 61.
  • this pump is related to the venting function regardless of location, since each is in the upper Area of the pressure chamber regardless of the installation position there is a ventilation duct through which the accumulating air can escape.
  • FIGS. 3e and 3f show two further exemplary embodiments shown how a pressure room side hydraulic resistance can be realized, for example instead of according to the small cross sections Figure 3d, can be used. So you can on the one hand provide a web 77 on the housing, which Oil flow in the cold start phase between lower and limited upper pressure range. In addition to the arrangement of the web 77 on the housing is of course also can be formed on the pressure plate 17.2, as in FIG. 3f shown. Other configurations are of course also possible hydraulic resistance is conceivable.

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 (9)

  1. Pompe à cellules, semi-rotative comportant un rotor muni d'ailettes, deux plaques de pression (17) appliquées de manière étanche contre le rotor, dont l'une est située du côté du refoulement de la pompe et l'autre du côté opposé, ainsi qu'une bague de contour entourant les ailettes et formant deux zones d'aspiration et de pression,
    au moins l'une des deux plaques de pression comportant des orifices d'entrée et de sortie (53) créant une liaison fluidique entre une zone de pression et une zone de dépression,
    caractérisée en ce que
    le plateau de pression (17.2) à l'opposé du côté refoulement comporte une ouverture créant une liaison entre une zone de pression et une chambre de pression (61) délimitée par cette plaque de pression (17.2) et assurant l'étanchéité de la chambre de pression (61) par rapport à l'autre zone de pression.
  2. Pompe à cellules, semi-rotative, selon la revendication 1,
    caractérisée en ce que
    la communication fluidique comprend une surface de passage dans la plaque de pression (17.2) à l'opposé du côté de refoulement, cette surface étant inférieure à 1/3 de la surface de passage de l'orifice de sortie du plateau de pression opposé (17.1).
  3. Pompe à cellules, semi-rotative, selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que
    le plateau de pression (17.2), en regard du plateau de pression, à l'opposé du côté refoulement, comporte un canal d'évacuation d'air situé en partie haute en position de montage, ce canal reliant la chambre de pression (61) à une autre zone de pression et étant conçu pour offrir une résistance hydraulique importante à un fluide froid à forte viscosité.
  4. Pompe à cellules, semi-rotative, selon l'une quelconque des revendications 1, 2 ou 3,
    caractérisée en ce que
    le plateau de pression (17.2), à l'opposé du côté de refoulement, comporte des ouvertures (59, 63) qui réalisent la communication de fluide entre la zone de pression et au moins une zone de dépression et, en même temps, une communication fluidique dans la chambre de pression (61).
  5. Pompe à cellules, semi-rotative, selon l'une quelconque des revendications 1, 2 ou 3,
    caractérisée en ce que
    des ouvertures prévues dans la plaque de pression (17.1) du côté du refoulement, réalisent la communication de fluide entre la zone de pression et au moins une zone de dépression et la plaque de pression (17.2), à l'opposé du côté de refoulement, assure l'étanchéité de la chambre de pression (61) par rapport à la zone de dépression.
  6. Pompe à cellules, semi-rotative, selon l'une quelconque des revendications 4 ou 5,
    caractérisée en ce qu'
    une zone de pression, supérieure (par rapport à la position de montage), communique par une liaison fluidique avec la chambre de pression (61).
  7. Pompe à cellules, semi-rotative, selon l'une quelconque des revendications 4 ou 5,
    caractérisée en ce qu'
    une zone de pression, inférieure (selon la position de montage), est en communication de fluide avec la chambre de pression (61).
  8. Pompe à cellules, semi-rotative, selon l'une quelconque des revendications 1, 2 ou 3,
    caractérisée en ce que
    les deux zones de pression sont en communication de fluide avec la chambre de pression (61), les liaisons dans la plaque de pression (17.2) opposées au côté de refoulement étant dimensionnées pour que la somme des deux résistances hydrauliques pour un fluide froid soit suffisamment grande pour bloquer le passage du fluide.
  9. Pompe à cellules, semi-rotative, selon la revendication 8,
    caractérisée par
    une entretoise (77) prévue dans le boítier et/ou le plateau de pression (17.2) du côté opposé au côté de refoulement, cette entretoise créant une résistance hydraulique importante pour éviter un court-circuit entre les deux zones de pression.
EP97929260A 1996-06-21 1997-06-23 Pompe a ailettes Expired - Lifetime EP0906512B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE29610896U 1996-06-21
DE29610896 1996-06-21
DE29612578U DE29612578U1 (de) 1996-06-21 1996-07-20 Flügelzellenpumpe
DE29612578U 1996-07-20
PCT/EP1997/003277 WO1997049915A1 (fr) 1996-06-21 1997-06-23 Pompe a ailettes

Publications (2)

Publication Number Publication Date
EP0906512A1 EP0906512A1 (fr) 1999-04-07
EP0906512B1 true EP0906512B1 (fr) 2002-10-23

Family

ID=26059109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97929260A Expired - Lifetime EP0906512B1 (fr) 1996-06-21 1997-06-23 Pompe a ailettes

Country Status (5)

Country Link
US (1) US6152716A (fr)
EP (1) EP0906512B1 (fr)
JP (1) JP4206132B2 (fr)
DE (1) DE19780598D2 (fr)
WO (1) WO1997049915A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136015A2 (fr) 2009-05-27 2010-12-02 Ixetic Bad Homburg Gmbh Pompe, en particulier pompe à palettes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10027811A1 (de) * 2000-06-05 2001-12-13 Luk Fahrzeug Hydraulik Pumpe
GB2383611B (en) * 2001-10-15 2005-04-06 Luk Automobiltech Gmbh & Co Kg Rotary vane-type machine
ES2440771T3 (es) * 2004-12-18 2014-01-30 Ixetic Bad Homburg Gmbh Bomba
US7361001B2 (en) * 2005-01-11 2008-04-22 General Motors Corporation Hydraulic vane pump
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
JP5214644B2 (ja) * 2010-02-09 2013-06-19 ジヤトコ株式会社 自動変速機用オイルポンプの空気抜き構造

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US3761206A (en) * 1971-02-02 1973-09-25 Shively Bros Inc Fluid device
US3787151A (en) * 1972-07-07 1974-01-22 Trw Inc Stack-up assembly
DE2735824C2 (de) * 1977-08-09 1986-01-23 Vickers Systems GmbH, 6380 Bad Homburg Flügelzellenpumpe, insbesondere zur Lenkhilfe
DE2835816C2 (de) * 1978-08-16 1984-10-31 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Drehkolbenpumpe
JPS5928853A (ja) * 1982-08-06 1984-02-15 Mitsubishi Electric Corp 回転電機
US4505654A (en) * 1983-09-01 1985-03-19 Vickers Incorporated Rotary vane device with two pressure chambers for each vane
EP0254721B1 (fr) * 1985-07-26 1989-01-11 ZF FRIEDRICHSHAFEN Aktiengesellschaft Pompe a aubes
JPH01155096A (ja) * 1987-12-10 1989-06-16 Suzuki Motor Co Ltd ベーン型回転圧縮機
US5147183A (en) * 1991-03-11 1992-09-15 Ford Motor Company Rotary vane pump having enhanced cold start priming
US5266018A (en) * 1992-07-27 1993-11-30 Vickers, Incorporated Hydraulic vane pump with enhanced axial pressure balance and flow characteristics
JPH09158868A (ja) * 1995-12-08 1997-06-17 Zexel Corp ベーン型圧縮機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136015A2 (fr) 2009-05-27 2010-12-02 Ixetic Bad Homburg Gmbh Pompe, en particulier pompe à palettes

Also Published As

Publication number Publication date
WO1997049915A1 (fr) 1997-12-31
DE19780598D2 (de) 1999-04-01
JP2000512709A (ja) 2000-09-26
EP0906512A1 (fr) 1999-04-07
US6152716A (en) 2000-11-28
JP4206132B2 (ja) 2009-01-07

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