WO2013045127A2 - Pompe à palettes - Google Patents

Pompe à palettes Download PDF

Info

Publication number
WO2013045127A2
WO2013045127A2 PCT/EP2012/063004 EP2012063004W WO2013045127A2 WO 2013045127 A2 WO2013045127 A2 WO 2013045127A2 EP 2012063004 W EP2012063004 W EP 2012063004W WO 2013045127 A2 WO2013045127 A2 WO 2013045127A2
Authority
WO
WIPO (PCT)
Prior art keywords
cover part
peripheral part
vane
rotor unit
chamber
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.)
Ceased
Application number
PCT/EP2012/063004
Other languages
German (de)
English (en)
Other versions
WO2013045127A3 (fr
Inventor
Stefan Hammer
Michael Rombach
Andreas Kuhnekath
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.)
Pierburg Pump Technology GmbH
Original Assignee
Pierburg Pump Technology 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 Pierburg Pump Technology GmbH filed Critical Pierburg Pump Technology GmbH
Publication of WO2013045127A2 publication Critical patent/WO2013045127A2/fr
Publication of WO2013045127A3 publication Critical patent/WO2013045127A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F04C28/265—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face
    • 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
    • F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
    • 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
    • F04C18/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/28—Safety arrangements; Monitoring

Definitions

  • the invention relates to a vane pump for a compressible fluid having a sealed housing, which has a pump chamber, wherein the housing is essentially constructed of a flange, a peripheral part and a cover part, wherein in the flange part, a rotor shaft with a rotor unit, the at least one slide element has, is rotatably mounted such that the rotor unit divides the pump chamber into at least two sub-chambers and provides a pressure / negative pressure build-up.
  • Such vane pumps are used for example in braking systems of motor vehicles. Further fields of application are transmissions, longitudinal systems as well as active suspension systems of motor vehicles.
  • DE 38 32 042 C2 discloses a vane pump with a slidably mounted slide element, which thus divides the pump chamber into two sub-chambers.
  • the vane pump of this document at the ends of the Schiebereiementes pivotally mounted sliders, which are in operative connection with the peripheral part.
  • lubricating oil of the motor vehicle is sucked into the pump chamber and pressed out of the pump chamber during pivoting of the slide element.
  • the lubricating oil especially in the cold state, ie at low ambient temperatures and not yet reached operating condition of the engine has a low flowability. This can be especially true at Startup lead to a high, undesirable pressure build-up, which represents such a burden on the slide elements and thus also for the rotor unit, that it can lead to failure of the vane pump.
  • the object of the invention is therefore to provide a cost-effective, simply constructed vane pump, which avoids the above-mentioned disadvantage.
  • the cover part is designed to be movable in the axial direction of the rotor shaft, such that when the pressure in a partial chamber is too high, pressure is relieved by a fluidic connection to the adjacent partial chamber.
  • a movable cover part allows by its flexibility an overflow of the fluid into an adjacent chamber and thus a short-term pressure reduction, whereby a failure of the vacuum pump can be prevented.
  • An advantageous embodiment results from the fact that the cover part is arranged radially sealed flexible on the peripheral part. In this case, an elastic Klips- or spring connection connect the cover part with the peripheral part. In this way it is possible to produce a mobility in the axial direction in a simple manner with a simple cover part.
  • the cover part can also be made flexible, so that it provides the necessary mobility in the axial direction, either alone or in conjunction with an elastic Klips- or spring connection.
  • the cover part can be rigidly connected, for example with screws, to the peripheral part, so that no adaptation of the assembly process is necessary.
  • the cover part in the circumferential direction at least one recess and the peripheral part over have the circumference distributed openings, wherein two-legged spring members are provided, which extend through the openings and are supported with the first, directed to the rotor unit leg on the cover part and are supported with the second, remote from the rotor unit leg on the peripheral part.
  • the cover part may alternatively also have a circumferential recess.
  • the flange part may be made in one piece around the peripheral part.
  • FIG. 1 shows a schematic perspective view of the opened vane pump
  • Figure 2 is a sectional view of a first embodiment of the vane pump according to the invention
  • Figure 3 is a sectional view of a second embodiment of the vane pump according to the invention.
  • FIG. 1 shows a schematic perspective view of an open vane pump 2.
  • an opened housing 4 can be seen that defines a pump chamber 6.
  • the housing 4 consists essentially of a flange part 8, a peripheral part 10 and a cover part 12, which has been omitted in this view.
  • a rotor unit 16 with a slide element 20 the pump chamber is divided into two sub-chambers 5, 7, in which a negative pressure is built up by rotation of the rotor unit.
  • a suction port not shown, air is sucked in and removed via an outlet, not shown.
  • FIG. 2 shows a sectional view of a first embodiment of the vane pump 2 according to the invention.
  • the flange 8 and the peripheral part 10 are made in one piece in the present embodiment.
  • the rotor unit 16 is driven.
  • the rotor shaft 14 and a rotor base portion 18, in which the slider element 20 is slidably disposed are made in one piece in the present embodiment.
  • the slide element 20 divides the pump chamber 6, as shown in Figure 1, in two sub-chambers 5, 7.
  • the rotor shaft 14 may be connected in a known manner by a not further shown coupling with a camshaft of the engine.
  • the cover element 12 is made in the present embodiment of a flexible material, such as sheet metal, and is connected via a clip connection 22 with the peripheral part 10.
  • the clip connection 22 in this case consists of recesses 24, 26 engage in the Klips institute 28, wherein the left side of the vane pump 2 is shown without engaging Klips institute 28.
  • the recesses 24, 26 may also be designed as a continuous, circumferential recess, so that a circumferential clip element 28 produces the clip connection.
  • FIG. 3 now shows a further embodiment of the vane cell pump 2 according to the invention.
  • the vane pump 2 according to FIG. 3 is basically constructed in the same way as the vane cell pump 2 from FIG. 2.
  • an oil drain opening 26 with built-in valve can be seen.
  • the lid part 12 is designed to be stiff in the present embodiment and, for the purpose of weight saving substantially has a smaller thickness than the lid part 12 of Figure 2.
  • the cover part 12 has a circumferential recess 30.
  • the peripheral part 10 has a number of circumferentially distributed openings 32 through which two-legged spring members 34 engage the recess 30.
  • a first, directed to the rotor unit 16 leg 36 is supported on the cover part 12.
  • a second leg 38 facing away from the rotor unit 16 is supported in the recess on the peripheral part 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne une pompe à palettes pour un fluide compressible doté d'un carter (4) étanchéifié comprenant une chambre de pompe (6), le carter (4) étant sensiblement composé d'une partie bride (8), d'une partie circonférentielle (10) et d'une partie couvercle (12), un arbre de rotor (14) doté d'une unité rotor (18) comportant au moins un élément coulissant (20) étant monté de manière à pouvoir tourner dans la partie bride (8), de telle manière que l'unité rotor (16) divise la chambre de pompe (6) en au moins deux chambres partielles (5, 7) et envisage l'établissement d'une pression/dépression, la partie couvercle (12) étant mobile dans la direction axiale de l'arbre de rotor (14), de telle manière qu'en cas de pression trop élevée dans une chambre partielle (5, 7), une décompression s'effectue du fait d'une liaison fluidique par rapport à la chambre partielle (5, 7) voisine.
PCT/EP2012/063004 2011-09-27 2012-07-04 Pompe à palettes Ceased WO2013045127A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11182852.1A EP2574792B1 (fr) 2011-09-27 2011-09-27 Pompe à cellules battantes
EP11182852.1 2011-09-27

Publications (2)

Publication Number Publication Date
WO2013045127A2 true WO2013045127A2 (fr) 2013-04-04
WO2013045127A3 WO2013045127A3 (fr) 2013-08-29

Family

ID=46489210

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/063004 Ceased WO2013045127A2 (fr) 2011-09-27 2012-07-04 Pompe à palettes

Country Status (2)

Country Link
EP (1) EP2574792B1 (fr)
WO (1) WO2013045127A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11639720B2 (en) 2017-01-30 2023-05-02 Litens Automotive Partnership Clutched vacuum pump system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832042C2 (de) 1987-10-05 1997-08-14 Barmag Barmer Maschf Flügelzellenpumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1450639A (fr) * 1965-06-30 1966-06-24 Beaudouin Sa Ets Perfectionnements aux pompes mécaniques à vide à injection d'huile et à injection d'air
JPH09310773A (ja) * 1996-05-22 1997-12-02 Daihatsu Motor Co Ltd ブリーザ装置
JP5448394B2 (ja) * 2008-08-27 2014-03-19 三菱重工業株式会社 圧縮機の安全弁

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832042C2 (de) 1987-10-05 1997-08-14 Barmag Barmer Maschf Flügelzellenpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11639720B2 (en) 2017-01-30 2023-05-02 Litens Automotive Partnership Clutched vacuum pump system

Also Published As

Publication number Publication date
WO2013045127A3 (fr) 2013-08-29
EP2574792B1 (fr) 2015-06-03
EP2574792A1 (fr) 2013-04-03

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