WO2009046810A1 - Pompe à vide, en particulier pompe à palettes - Google Patents

Pompe à vide, en particulier pompe à palettes Download PDF

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Publication number
WO2009046810A1
WO2009046810A1 PCT/EP2008/007585 EP2008007585W WO2009046810A1 WO 2009046810 A1 WO2009046810 A1 WO 2009046810A1 EP 2008007585 W EP2008007585 W EP 2008007585W WO 2009046810 A1 WO2009046810 A1 WO 2009046810A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
vacuum pump
rotor
annular groove
bearing
Prior art date
Application number
PCT/EP2008/007585
Other languages
German (de)
English (en)
Inventor
Gunther Lorenz
Carsten Sczesny
Michael Korn
Nabil Al-Hasan
Original Assignee
Ixetic Hückeswagen 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=40090006&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2009046810(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ixetic Hückeswagen Gmbh filed Critical Ixetic Hückeswagen Gmbh
Priority to DE112008002164.3T priority Critical patent/DE112008002164B4/de
Publication of WO2009046810A1 publication Critical patent/WO2009046810A1/fr

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
    • 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
    • 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
    • F01C21/08—Rotary pistons
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/028—Means for improving or restricting lubricant flow

Definitions

  • Vacuum pump in particular vane pump
  • the invention relates to a vacuum pump, in particular a vane pump, with a rotor bearing portion, with which a rotor is rotatably mounted about a rotation axis in a housing bearing portion of a housing.
  • the object of the invention is to extend the life of a vacuum pump, in particular a vane pump, with a rotor bearing portion with which a rotor is rotatably mounted about a rotation axis in a housing bearing portion of a housing.
  • the object is in a vacuum pump, in particular a vane pump, with a rotor bearing portion, with which a rotor is rotatably mounted about a rotation axis in a housing bearing portion of a housing, achieved in that in at least one of the bearing portions an annular groove is provided which is for receiving lubricant - and / or sealant is used.
  • the annular groove improves the supply of the bearing sections with lubricants and / or sealants.
  • the lubricating and / or sealing agent is preferably oil which serves to lubricate the bearing sections.
  • the oil serves to seal the annular gap or bearing lubrication gap or bearing gap between the bearing sections.
  • annular groove is provided in the rotor bearing portion or in the housing bearing portion.
  • the annular groove has, for example, a rectangular cross-section.
  • a further preferred embodiment of the vacuum pump is characterized in that the annular groove is bounded in the axial direction by a shoulder of the housing bearing section and a shoulder of the rotor bearing section.
  • the axial direction is a direction parallel to the rotor axis of rotation.
  • a further preferred embodiment of the vacuum pump is characterized in that the annular groove in the radial direction of the rotor bearing portion and the housing is limited. This has the advantage that no groove must be incorporated into the bearing sections.
  • a further preferred embodiment of the vacuum pump is characterized in that a supply channel opens into the annular groove. Through the supply channel of the annular groove lubricants and / or sealant is supplied.
  • the vacuum pump is characterized in that the supply channel is recessed in the housing.
  • the supply channel is connected, for example, to the oil supply of an internal combustion engine.
  • the supply channel is preferably designed as a bore.
  • a further preferred embodiment of the vacuum pump is characterized in that the rotor has at least one wing which divides a working space in the housing into a suction chamber and a pressure chamber.
  • the structure and function of a vane pump are known.
  • the housing can be made in one or more parts.
  • FIG. 1 shows the view of a section through a vacuum pump with an annular groove in one
  • Figure 2 is a similar sectional view as in Figure 1 with an annular groove in one
  • Figure 3 is a similar sectional view as in Figures 1 and 2 with an annular groove between two bearing sections.
  • a vacuum pump 1; 21; 41 each shown in fragmentary longitudinal section.
  • the drive side of the vacuum pump is 2; 22; 42 denotes.
  • the pump side of the vacuum pump is 3; 23; 43 denotes.
  • the vacuum pump includes a Rotor 4; 24; 44, in a housing 5; 25; 45 is rotatably arranged.
  • the rotor 4; 24; 44 has a wing receiving portion 28 toward the pump side 3; 48, which serves a wing 8; 29; 49 slidably lead.
  • wing 8; 29; 49 is a working space in the housing 5; 25; 45 divided into a suction chamber and a pressure chamber.
  • the pressure chamber communicates with a pressure connection and the suction chamber with a suction connection.
  • a gaseous medium in particular air or an air-oil mixture
  • the vacuum pump is used to apply a negative pressure, that is to say a vacuum, to a brake booster of a motor vehicle.
  • the oil in the air-oil mixture is used to close occurring during operation of the vacuum pump air gaps.
  • the coupling portion 12; 32; 52 serves to receive a coupling element 13; 33; 53 a clutch, preferably an Oldham clutch.
  • the rotor 4; 24; 44 is with its rotor bearing portion 10; 30 to form a Lagerschmiemut 14; 34; 54 sliding in a housing bearing portion 15; 35; 55 of the housing 5; 25; 45 stored.
  • the diameter of the rotor bearing portion 10; 30; 50 is larger than the diameter of the coupling portion 12; 32; 52, but smaller than the diameter of the wing receiving portion 28; 48 of the rotor.
  • annular groove 18 is recessed in the rotor bearing portion 10 of the rotor 4.
  • the annular groove 18 opens a supply channel 19, which is recessed in the housing 5.
  • oil is supplied.
  • the supply channel is connected to an oil supply (not shown) of an internal combustion engine.
  • the supply channel 19 and the annular groove 18, the oil reaches the bearing sections 10, 15 and then into the pump room.
  • the annular groove 18 leads to an improved oil supply in the rotor bearing and thus to an improved lubrication of the bearing and an increased sealing effect to the crankcase of the internal combustion engine.
  • an annular groove 38 is provided in the housing bearing portion 35 of the housing 25. In the annular groove 38 opens a supply channel 39 which is recessed in the housing 25. Through the supply channel 39 of the annular groove 38 oil is supplied.
  • the rotor 44 has a shoulder 56 in the rotor bearing section 50.
  • a further shoulder 57 is provided in the housing bearing portion 55 of the housing 45.
  • the two paragraphs 56, 57 define an annular groove 58 into which a supply channel 59 opens.
  • the supply channel 59 is recessed in the housing 45 and serves to supply oil.
  • the annular groove 58 is bounded radially inward by the rotor bearing section 50 and radially outward by the housing bearing section 55.
  • the oil supply to the rotor bearing of the vacuum pump 1; 21, 41 has on the one hand the function of lubrication of the bearing and on the other hand a sealing function of the annular gap around the rotor bearing portion 10; 30; 50 to fulfill.
  • evacuation of the pump interior results in a pressure gradient between a crankcase interior on the drive side 2; 22; 42 and a pump room on the pump side 3; 23; 43, which leads to a preferential flow direction of the oil in the bearing in the direction of the pump chamber.
  • Rotor bearing section 50 Rotor bearing section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

La présente invention concerne une pompe à vide, en particulier une pompe à palettes, comportant un palier pour rotor permettant de loger un rotor dans le palier d'un boîtier de manière à ce qu'il puisse tourner autour d'un axe de rotation. L'invention se caractérise en ce qu'une rainure annulaire est prévue dans au moins l'un des paliers, ladite rainure servant à contenir un produit lubrifiant et/ou d'étanchéité.
PCT/EP2008/007585 2007-10-02 2008-09-13 Pompe à vide, en particulier pompe à palettes WO2009046810A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112008002164.3T DE112008002164B4 (de) 2007-10-02 2008-09-13 Vakuumpumpe, insbesondere Flügelzellenpumpe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007048628.8 2007-10-02
DE102007048628 2007-10-02

Publications (1)

Publication Number Publication Date
WO2009046810A1 true WO2009046810A1 (fr) 2009-04-16

Family

ID=40090006

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/007585 WO2009046810A1 (fr) 2007-10-02 2008-09-13 Pompe à vide, en particulier pompe à palettes

Country Status (2)

Country Link
DE (1) DE112008002164B4 (fr)
WO (1) WO2009046810A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013054263A2 (fr) 2011-10-13 2013-04-18 Vhit S.P.A. Pompe à vide rotative
EP3032105A1 (fr) * 2014-12-12 2016-06-15 Pierburg Pump Technology GmbH Pompe à vide mécanique pour véhicule automobile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303973A1 (fr) * 1975-03-11 1976-10-08 Bosch Gmbh Robert Machine cellulaire a palettes
GB2012874A (en) * 1977-12-07 1979-08-01 Seiko Instr & Electronics Rotary Positive-displacement Fluid-machines
JPH0337394A (ja) * 1989-06-30 1991-02-18 Shinko Seiki Co Ltd 回転翼形二段油回転真空ポンプ
EP1277963A1 (fr) * 2001-07-16 2003-01-22 Seiko Instruments Inc. Compresseur à gaz avec élément séparateur d'huile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841329C2 (de) * 1987-12-12 1994-12-15 Barmag Barmer Maschf Flügelzellenvakuumpumpe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2303973A1 (fr) * 1975-03-11 1976-10-08 Bosch Gmbh Robert Machine cellulaire a palettes
GB2012874A (en) * 1977-12-07 1979-08-01 Seiko Instr & Electronics Rotary Positive-displacement Fluid-machines
JPH0337394A (ja) * 1989-06-30 1991-02-18 Shinko Seiki Co Ltd 回転翼形二段油回転真空ポンプ
EP1277963A1 (fr) * 2001-07-16 2003-01-22 Seiko Instruments Inc. Compresseur à gaz avec élément séparateur d'huile

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013054263A2 (fr) 2011-10-13 2013-04-18 Vhit S.P.A. Pompe à vide rotative
WO2013054263A3 (fr) * 2011-10-13 2013-08-01 Vhit S.P.A. Pompe à vide rotative
CN103906927A (zh) * 2011-10-13 2014-07-02 Vhit公司 旋转式真空泵
US20140341767A1 (en) * 2011-10-13 2014-11-20 Vhit S.P.A. Rotary vacuum pump
CN103906927B (zh) * 2011-10-13 2016-05-18 Vhit公司 旋转式真空泵
US9388810B2 (en) 2011-10-13 2016-07-12 Vhit S.P.A. Rotary vacuum pump with circumferential groove for a lubricating and sealing fluid
EP3032105A1 (fr) * 2014-12-12 2016-06-15 Pierburg Pump Technology GmbH Pompe à vide mécanique pour véhicule automobile
WO2016091922A1 (fr) * 2014-12-12 2016-06-16 Pierburg Pump Technology Gmbh Pompe à vide mécanique pour véhicule automobile
JP2017532490A (ja) * 2014-12-12 2017-11-02 ピアーブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングＰｉｅｒｂｕｒｇ Ｐｕｍｐ Ｔｅｃｈｎｏｌｏｇｙ ＧｍｂＨ 自動車用機械式真空ポンプ
US10443599B2 (en) 2014-12-12 2019-10-15 Pierburg Pump Technology Gmbh Mechanical vacuum pump for a motor vehicle

Also Published As

Publication number Publication date
DE112008002164A5 (de) 2010-08-12
DE112008002164B4 (de) 2017-02-02

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