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WO2010057688A2 - Pompe à vide - Google Patents

Pompe à vide Download PDF

Info

Publication number
WO2010057688A2
WO2010057688A2 PCT/EP2009/059539 EP2009059539W WO2010057688A2 WO 2010057688 A2 WO2010057688 A2 WO 2010057688A2 EP 2009059539 W EP2009059539 W EP 2009059539W WO 2010057688 A2 WO2010057688 A2 WO 2010057688A2
Authority
WO
WIPO (PCT)
Prior art keywords
check valve
opening
housing
vacuum pump
suction
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/EP2009/059539
Other languages
German (de)
English (en)
Other versions
WO2010057688A4 (fr
WO2010057688A3 (fr
Inventor
Bernd Hess
Willi Schneider
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.)
Joma Polytec Kunststofftechnik GmbH
Original Assignee
Joma Polytec Kunststofftechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42114693&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010057688(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Joma Polytec Kunststofftechnik GmbH filed Critical Joma Polytec Kunststofftechnik GmbH
Priority to EP09781015A priority Critical patent/EP2347133B1/fr
Priority to US12/998,679 priority patent/US8740589B2/en
Priority to CN2009801461093A priority patent/CN102216621A/zh
Publication of WO2010057688A2 publication Critical patent/WO2010057688A2/fr
Publication of WO2010057688A3 publication Critical patent/WO2010057688A3/fr
Publication of WO2010057688A4 publication Critical patent/WO2010057688A4/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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Definitions

  • the invention relates to a vacuum pump, in particular a
  • Vane pump with a pump housing, in which a suction chamber is provided, and opening into the suction pump housing breakthrough, wherein in the pump housing breakthrough opening into the open or in an external vacuum chamber suction check valve is arranged, which is housed in a pot-shaped valve housing and the cup-shaped valve housing has a housing shell.
  • a vacuum pump with such a structure has become known.
  • air is sucked out of a vacuum space, for example a brake booster, whereby the suction space inside the vacuum pump is formed by vane cells.
  • the vacuum pump is equipped with a suction check valve, which is arranged in a pump housing breakthrough.
  • This suction-check valve is sleeve-like and has a cup-shaped valve housing with a housing shell and a housing bottom, wherein the housing bottom is inserted into the pump housing of the vacuum pump.
  • the sealing of the suction check valve in the pump housing breakthrough takes place for example by means of sealing elements, for example O-rings.
  • the suction check valve is held on the pump housing and in the pump housing breakthrough that a flange of the suction check valve is overlapped by the edge of the Pumpengeophuse matbruchs so that the free end of the edge can be crimped or caulked, so that the flange is held in the pump housing breakthrough.
  • the attachment of the suction check valve therefore requires an additional operation and additional tools.
  • the pump housing is deformed. It must therefore consist of a plastically deformable material and must not be brittle.
  • suction check valve must be fixed by means of a separate operation on the pump housing.
  • pump housing must be made of a plastically deformable material.
  • the invention is therefore based on the object to provide a vacuum pump to which the suction check valve is easier fastened.
  • Suction check valve not only inserted into the pump housing opening, but also locked to the pump housing. So it requires no additional operation, with which the suction check valve is secured captively on the pump housing. In particular, neither the suction check valve nor the housing of the vacuum pump needs to be deformed or otherwise altered to define the suction check valve. There are also no adhesion promoters, such as adhesives or the like required for attachment.
  • the assembly of the suction check valve on the pump housing can be done not only faster and easier, but also by machine.
  • the suction check valve and / or the pump housing opening has at least one undercut.
  • This undercut serves to receive a locking means as soon as this locking means engages in the undercut.
  • the locking means is designed so that it is not released automatically from the undercut and thereby forms a pull-out prevention for the suction check valve.
  • Pump housing opening provided with at least one latching hook.
  • This locking hook is arranged so that the suction check valve can be easily inserted into the pump housing opening and thus the latch hook is deflected.
  • the catch hook reaches into the area of the undercut and engages in the latter.
  • the undercut is shaped so that it reaches behind the locking hooks and blocks or holds it. An extract of the suction check valve from the pump housing breakthrough is prevented in this way.
  • the latching hook is arranged radially outside of the housing shell.
  • the housing jacket forms the fluid-tight connection, for example between a laid outside the vacuum pump vacuum hose and the suction chamber and the latching hook is only used for latching fixation of the suction check valve on the pump housing.
  • this is arranged so that it is no longer accessible from outside after the insertion of the suction check valve in the pump housing opening. Removal of the suction check valve from the pump housing can only be done by destroying the suction check valve.
  • the latching hook has a relative to the housing shell of the suction check valve radially pivotable latching finger with a terminal locking lug.
  • the locking lug projects beyond the outer contour of the housing shell in the radial direction, so that the locking lug is initially displaced radially when inserting the suction check valve and then radially snaps with complete insertion of the suction check valve in the pump housing opening into a receptacle provided for this, in particular in an undercut ,
  • the suction check valve and / or the housing opening is provided with a circumferential groove.
  • This circumferential groove is formed at the pump housing opening as réelle insectsnut and the suction check valve as basesvonsnut and serves to a locking element of the latching hook take.
  • the circumferential groove may be formed completely circumferentially, so that rotation of the inserted and latching suction check valve is not hindered.
  • Undercut is formed by at least one breakthrough in the pump housing. In this breakthrough engage the locking lugs of the locking fingers.
  • the suction check valve is now not only securely attached to the pump housing but also secured against rotation.
  • a release of the suction check valve takes place in that from the outside in the breakthrough a locking lug from the breakthrough auslanderdes tool can be used.
  • Another for releasing the suction check valve provides that in the pump housing an inner circumferential groove is provided, which runs in the radial direction at least partially parallel next to and in the direction of insertion of the suction check valve behind the opening and in the circumferential direction in the inner periphery of the pump housing expires. If the suction-check valve latched to the pump housing is pushed further into the pump housing, the locking lugs having a bevel slide out of the opening and enter the inner circumferential groove. Now, the suction check valve can be rotated, whereby the locking lugs are dug out of the inner circumferential groove and rest against the paragraph free inner peripheral surface of the pump housing breakthrough. The suction check valve can now be removed. A secure hold of the suction check valve in the pump housing ensures a support spring on the front of the Suction check valve acts and is biased when inserting the suction check valve. The latching works in the manner of a bayonet lock.
  • Figure 1 shows a longitudinal section l-l according to Figure 2 by an inserted into a pump housing suction check valve.
  • Figure 2 is a side view of the suction check valve
  • FIG. 3 shows a longitudinal section through an inserted into a pump housing suction-check valve according to a second embodiment
  • Figure 4 shows a cross section IV - IV according to Figure 3;
  • Figure 5 shows the view of Figure 3 tools used to release the latching
  • FIG. 6 shows a cross section VI - VI according to FIG. 3
  • FIG. 1 shows a hint of a section of a total of 10 designated pump housing of a vacuum pump 12, wherein 14 denotes the inner peripheral surface of a suction chamber 16.
  • a suction check valve 24 is used, on whose free end 26 a (not shown) suction hose can be pushed.
  • the suction check valve 24 shown in longitudinal section has a valve housing 28, which is cup-shaped and is formed essentially by a housing shell 30 and a housing bottom 32.
  • the housing jacket 30 extends beyond the housing bottom 32 into an edge 34, softens the housing bottom 32 on its surmounted on the opposite side.
  • the valve housing 28 is provided with a circumferential groove 36 into which a sealing ring 38, in particular an O-ring, is inserted.
  • the suction-check valve 24 is provided with a latching means 42, which is designed as a latching hook 44 which extends essentially on the outside of the housing jacket 30 in the axial direction extends and integrally formed with its one end on the housing shell 30 and radially beyond the outer circumference or the outer contour of the housing shell 30 with its other, free end 46.
  • the free end 46 of the latching hook 44 is designed in the manner of a latching nose 48 and engages in an undercut 50, which is provided on the inner peripheral surface in the region of the free end 40 of the pump housing opening 20.
  • the undercut 50 is designed as mecanical thread 52.
  • Pump housing breakthrough 20 in the region of the sealing ring 28 has a shoulder 54, that is, that the diameter of the pump housing opening 20 in the insertion direction is smaller.
  • the sealing ring 38 is thus located on the shoulder edge 54, whereby on the one hand the advantage is achieved that the heel 54 causes a higher sealing effect, as if the sealing ring 38 would abut flat against the inner surface of the pump housing opening 20.
  • the sealing ring 38 not only serves as a sealing means for fluid-tight sealing of the suction check valve 24 in the pump housing opening 20 but also serves as a biasing means, so that the suction check valve 24, when the sealing ring 38 abuts against the shoulder edge 54, is biased in the extension direction. This ensures that the detents 48 (seen in the axial direction) engage clearance in the inner circumferential groove 52 and thus the suction check valve 24 is fixed without play in the pump housing opening 20 in the axial direction.
  • FIG. 3 shows a variant in which the undercut of two mutually opposite openings 56 is formed.
  • Each breakthrough extends, as shown in Figure 4, over about 30 ° in the circumferential direction slightly below the free end 40 of the pump housing 10.
  • this breakthrough 56 engage with inserted suction check valve 24, the locking lugs 48 of the latching fingers.
  • a coil spring 58 is present, which is compressed when inserting the suction check valve 24 at the bottom of the pump housing opening 20.
  • the width of the detent 48 corresponds to the width of the opening 56, which is clearly visible in Figure 4. As a result, twisting of the suction check valve 24 is prevented when the suction check valve 24 is engaged.
  • a release of the latching takes place by means of a tool 60, which is radially inserted from the outside into the (in each) opening 56 ( Figure 5).
  • the locking lugs 48 are pressed radially on and out of the opening 56 out, so that they are no longer overlapped by the free end 40 of the pump housing 10.
  • the suction check valve 24 can now be removed, or the suction check valve 24 is pushed by the coil spring 58 from the pump housing opening 20.
  • Inner circumferential groove 62 ( Figures 3 and 6) before, which connects in the insertion direction of the suction check valve 24 directly to the opening 56 or generally to the undercut 50 and has a larger diameter than the diameter of the free end 40 of the Pump housing 10 and the pump housing opening 20.
  • the inner circumferential groove extends over part of the inner circumference and runs on the diameter of the pump housing opening 20 from. If the suction check valve 24 is inserted, the latching lugs 48 enter the inner circumferential groove 62. If the suction check valve 24 is then rotated by 30, for example, the latching lugs 48 are lifted out of the inner circumferential groove 62 and lie against the inner surface of the pump housing opening 20, as in FIG shown on. The suction check valve 24 can now be removed.
  • the latch 48 without slope 64 but cuboid design. Insertion of the suction check valve 24 in the pump housing opening 20 without tools 60 is then no longer possible.
  • the free end 40 of the pump housing 10 is then provided with a funnel-shaped insertion slope.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne une pompe à vide, en particulier une pompe à palettes, comprenant un carter dans lequel est située une chambre d'aspiration, ainsi qu'une ouverture ménagée dans le carter et débouchant dans la chambre d'aspiration. Un clapet antiretour d'aspiration débouchant à l'extérieur ou dans une chambre de dépression externe est disposé dans l'ouverture du carter, ce clapet étant placé dans un corps en forme de pot présentant une enveloppe. Selon l'invention, le clapet antiretour d'aspiration peut être bloqué par encliquetage dans l'ouverture du carter.
PCT/EP2009/059539 2008-11-20 2009-07-24 Pompe à vide Ceased WO2010057688A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09781015A EP2347133B1 (fr) 2008-11-20 2009-07-24 Pompe à vide
US12/998,679 US8740589B2 (en) 2008-11-20 2009-07-24 Vacuum pump
CN2009801461093A CN102216621A (zh) 2008-11-20 2009-07-24 真空泵

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008059227.7 2008-11-20
DE102008059227.7A DE102008059227B4 (de) 2008-11-20 2008-11-20 Vakuumpumpe

Publications (3)

Publication Number Publication Date
WO2010057688A2 true WO2010057688A2 (fr) 2010-05-27
WO2010057688A3 WO2010057688A3 (fr) 2010-07-22
WO2010057688A4 WO2010057688A4 (fr) 2010-09-02

Family

ID=42114693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/059539 Ceased WO2010057688A2 (fr) 2008-11-20 2009-07-24 Pompe à vide

Country Status (5)

Country Link
US (1) US8740589B2 (fr)
EP (1) EP2347133B1 (fr)
CN (1) CN102216621A (fr)
DE (1) DE102008059227B4 (fr)
WO (1) WO2010057688A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059228A1 (de) * 2008-11-20 2010-05-27 Joma-Polytec Kunststofftechnik Gmbh Vakuumpumpe
US10441120B1 (en) * 2010-04-30 2019-10-15 Unger Marketing International, Llc Universal connecting members
DE102010039343B4 (de) * 2010-08-16 2012-06-14 Joma-Polytec Gmbh Vakuumpumpe
JP2023535393A (ja) * 2020-07-20 2023-08-17 ノーマ・ユー・エス・ホールディング・リミテッド・ライアビリティ・カンパニー 逆止弁を有する流体ラインクイックコネクタ

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105665A1 (de) 1980-02-20 1982-03-18 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid "fluegelzellenvakuumpumpe mit einer vorevakuierung des saugraumes, insbesondere zur bremskraftverstaerkung in kraftfahrzeugen"
FR2640026B2 (fr) 1988-06-14 1991-03-15 Hutchinson Dispositif de raccord rapide et appareillage pour sa mise en oeuvre
EP0435720B1 (fr) 1989-12-27 1993-10-27 HUTCHINSON S.A. une SociÀ©té Anonyme dotée d'un Conseil de Surveillance et d'un Directoire Dispositif de raccord rapide et appareillage pour sa mise en oeuvre
US5242581A (en) 1992-03-30 1993-09-07 Facet Quantek, Inc. Shut-off valve
DE19510193A1 (de) 1995-03-21 1996-09-26 Voss Armaturen Anschlußvorrichtung für Rohrleitungen
DE19538923C2 (de) 1995-10-19 1998-01-29 Bosch Gmbh Robert Vorrichtung zum Verbinden eines rohrförmigen Teils an einem Gehäuse, insbesondere in einer Sauganlage einer Brennkraftmaschine
US6199919B1 (en) * 1998-03-31 2001-03-13 Tokai Rubber Industries, Ltd. Tube connecting structure
JP2001050457A (ja) 1999-08-03 2001-02-23 Smc Corp 管継手
FR2802609B1 (fr) 1999-12-17 2002-07-12 Freudenberg Sa Raccord a montage rapide pour canalisation haute pression
DE10147325A1 (de) * 2000-10-18 2002-05-16 Luk Automobiltech Gmbh & Co Kg Pumpe
GB2371351B (en) 2000-11-17 2004-08-18 Luk Lamellen & Kupplungsbau Hydraulic system
ITPR20020036A1 (it) * 2002-06-24 2003-12-24 Ferrari Group Srl Attacco rapido per sistemi di irrigazione, in particolare domestica
DE10234609A1 (de) 2002-07-30 2004-02-19 Robert Bosch Gmbh Ventil zur Regelung eines strömenden Mediums, insbesondere Wasserventil
ATE503931T1 (de) 2003-01-17 2011-04-15 Ixetic Hueckeswagen Gmbh Pumpe
CN2837554Y (zh) * 2005-03-10 2006-11-15 张坤林 一种可防卡死的真空泵
DE102005062660B4 (de) 2005-12-23 2023-10-26 Stiebel Eltron Gmbh & Co. Kg Warmwasserbereiter sowie Grundbehälter für einen Warmwasserbereiter
WO2008009251A1 (fr) 2006-07-21 2008-01-24 Ixetic Hückeswagen Gmbh pompe À vide

Also Published As

Publication number Publication date
WO2010057688A4 (fr) 2010-09-02
EP2347133B1 (fr) 2012-12-19
EP2347133A2 (fr) 2011-07-27
US20110293451A1 (en) 2011-12-01
US8740589B2 (en) 2014-06-03
WO2010057688A3 (fr) 2010-07-22
DE102008059227B4 (de) 2021-01-14
CN102216621A (zh) 2011-10-12
DE102008059227A1 (de) 2010-05-27

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