WO2004065795A1 - Pompe - Google Patents

Pompe Download PDF

Info

Publication number
WO2004065795A1
WO2004065795A1 PCT/EP2004/000277 EP2004000277W WO2004065795A1 WO 2004065795 A1 WO2004065795 A1 WO 2004065795A1 EP 2004000277 W EP2004000277 W EP 2004000277W WO 2004065795 A1 WO2004065795 A1 WO 2004065795A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
flange
nozzle
housing
pump housing
Prior art date
Application number
PCT/EP2004/000277
Other languages
German (de)
English (en)
Inventor
Andreas Buss
Friedrich Schuler
Original Assignee
Luk Automobiltechnik Gmbh & 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
Application filed by Luk Automobiltechnik Gmbh & Co. Kg filed Critical Luk Automobiltechnik Gmbh & Co. Kg
Priority to DE502004012345T priority Critical patent/DE502004012345D1/de
Priority to EP04702662A priority patent/EP1588054B1/fr
Priority to AT04702662T priority patent/ATE503931T1/de
Publication of WO2004065795A1 publication Critical patent/WO2004065795A1/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
    • 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
    • F04C29/126—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 of the non-return type
    • 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
    • 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
    • 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
    • F04C2220/00—Application
    • F04C2220/10—Vacuum
    • 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 pump, in particular a vacuum pump for motor vehicles, with a pump flange and a pump housing, wherein the pump housing can be a pot-shaped sheet metal housing, with an intake port, which is connected to a suction chamber formed in a pump chamber and has a non-return valve which Prevents passage of a pressure medium through the intake manifold in one direction of flow.
  • Such pumps are known. They usually have a die-cast housing, which requires a complex casting tool with a slide for the pump flange or pump housing due to the lateral position of the suction nozzle. With these pumps, the intake manifold is molded on the side.
  • the disadvantages of such vacuum pumps are that the pump housings are relatively expensive and the intake port position has to be adapted to the installation conditions, so that the pump housing cannot be standardized.
  • pumps with standardized pump housings e.g. deep-drawn sheet metal housings
  • the intake port is not accommodated in the pump housing, but laterally in the pump flange.
  • Such pumps have the disadvantages of a large axial overall height of the pump flange and thus of the pump, the nozzle position being inflexible in the axial direction.
  • a pump in particular a vacuum pump for motor vehicles, with a pump flange and with a pump housing, it being possible for the pump housing to be a pot-shaped sheet metal housing, with an intake port which is connected to a suction chamber formed in a pump chamber and has a check valve, which prevents the passage of a pressure medium through the intake port in a flow direction, the intake port having a port connection and a port flange and being arranged as a separate component by means of a flange connection on the pump housing and / or pump flange and the longitudinal axis of the port connection having different angle and / or height positions in May have reference to the longitudinal axis of the nozzle flange.
  • a pump according to the invention is characterized in that the check valve is arranged in the nozzle flange.
  • the check valve can be arranged in the nozzle connection.
  • a pump is preferred in which the intake port is connected to the pump chamber via a connecting channel.
  • the connecting channel is arranged in the parting plane between the pump flange and the pump housing.
  • a pump is preferred in which the connecting channel is formed by a depression which can be arranged in the pump flange and / or pump housing.
  • the pump housing of a pump has a cutout at one end of the connecting duct, which serves as a connection between the intake manifold and the connecting duct.
  • a pump is also preferred, in which the connecting piece of the suction connecting piece can be arranged straight or angled relative to the connecting piece flange.
  • a pump according to the invention is characterized in that a seal is passed between the pump housing and the pump flange around the connecting channel.
  • Another pump according to the invention is characterized in that the nozzle flange rests on the pump housing and is connected to the pump flange through the pump housing, for example by screws or rivets.
  • a pump is preferred in which the nozzle flange rests on the pump housing and is fixed on the pump housing by pressing or gluing or caulking.
  • a pump is also preferred in which the longitudinal axis of the nozzle flange runs parallel to the longitudinal axis of the rotor.
  • Figure 1 shows an exploded view of the essential parts of the pump.
  • FIG. 2 shows a cross section through part of the pump and the intake manifold in the area of the intake manifold attachment.
  • an intake manifold 1 which essentially has a nozzle connection 12 and a nozzle flange 14.
  • the nozzle flange 14 contains two fastening screws 16, with which the nozzle flange can be connected to the pump flange 3 through the pump housing 2.
  • the fastening screws 16 are guided through through openings 18 of the pump housing 2 in thread 20 in the pump flange 3.
  • the pump housing 2 can be made in this illustration from a deep-drawn sheet metal cover.
  • the pump flange 3 is preferably produced as a die-cast aluminum part.
  • Other essential components of the vacuum pump are the rotor 10, which can guide a monofoil 9 with attached sealing caps 24 in a slot 22.
  • the rotor 10 is guided eccentrically to the pump housing 2 through a bearing opening 26 in the pump flange 3, the pump housing 2 representing the raceway for the wing 9 or the sealing caps 24.
  • the function of such a mono-vane pump is known and will therefore not be explained further here.
  • the structure and arrangement of the intake manifold 1 on the vacuum pump is essential to the invention.
  • the intake port 1 contains a port connection 12 and a port flange 14. Air is evacuated via the port connection 12 from a brake booster located in the motor vehicle. Different installation conditions in different motor vehicles require that the position of the connection piece 12 in relation to the pump can be arranged differently from case to case. Therefore, a nozzle connection that is firmly integrated into the pump housing 2 would be, for. B. disadvantageous due to the complex sheet metal lid tool. Therefore, the flange design according to the invention is selected here.
  • the pressure medium sucked in by the vacuum pump is passed through an opening 8 in the pump housing 2 into a connecting channel 4 in the pump flange 3, the connecting channel 4 extending into the pump chamber 7 and thus connecting the suction chamber of the pump to the suction port 1.
  • the connecting channel 4 can preferably be represented here by a recess in the pump flange 3, since the connecting channel lies in the parting plane between the pump flange 3 and the pump housing 2.
  • the depression forming the connecting channel 4 does not require an undercut, so that it can be produced inexpensively. In a cast part it does not need a slide and can be pre-cast, in a deep-drawn part it can be stamped. That would be the case if e.g. B. alternatively, the connecting channel 4 would be introduced into the metal cover 2.
  • the nozzle connection 12 of the intake manifold 1 can be straight or angled. A high degree of flexibility is ensured by varying the height, the angle or the position of the nozzle connection 12 relative to the nozzle flange 14.
  • a seal 5 between the pump housing 2 and the pump flange 3 is guided around the intake duct 4.
  • the suction nozzle 1 rests on the pump housing 2 and is connected through the pump housing 2 to the pump flange 3, for example by screws or rivets. This allows the number of remaining fasteners, e.g. B. the screws 28, between the pump flange 3 and the pump housing 2 can be reduced.
  • Alternative joining options for the intake manifold 1 would be pressing or gluing or caulking on the housing cover 2 or through the housing cover 2 as far as into the pump flange 3.
  • the intake manifold 1 according to the invention and part of the pump housing 2 is shown in section.
  • the intake port 1 has the port connection 12, the longitudinal axis 30 of which is angled by 90 ° relative to the port flange 14 and the longitudinal axis 32.
  • the nozzle flange 14 is sealed by an O-ring seal 36 with respect to the pump housing 2, which is guided in a guide ring 34 which is clipped or pressed into the nozzle flange.
  • the pump housing 2 in turn lies sealingly on the pump flange 3, a seal 5 between the pump housing 2 and the pump flange 3 producing the necessary seal.
  • a connection channel 4 is shown, which connects the intake port 1 with the pump interior 7 and the suction space formed therein.
  • the intake manifold 1 also contains a check valve 6 which has a valve membrane 40 which is guided on a central pin 42.
  • the valve membrane 40 rests on a sealing seat 44 and through openings, not shown here, located therein if the pressure in the connecting channel 4 and in the pump chamber 7 is greater than the negative pressure in the brake booster, which is effective in the connection port 12. This will cause the membrane, e.g. B.
  • the brake booster can not lose its vacuum.
  • a negative pressure is generated in the pump chamber 7, which lifts the check valve membrane 40 from the seat 44 via the connecting channel 4 and thereby also generates a vacuum via the connecting piece 12 in the brake booster.
  • the arranged in the nozzle flange 14 of the suction port 1 line space 48 is closed by a cover 46, which here z. B. can be pressed gas-tight.
  • the nozzle connection 12 also has a circumferential elevation 38, which ensures the sealing of the nozzle connection 12 against a pushed-on suction hose.
  • the inventive design of the intake manifold 1 and the vacuum pump equipped with it shows the advantage of a compact vacuum pump with a space-saving arrangement of intake manifold and intake duct.
  • the intake manifold construction represents a flexible concept due to different intake manifold designs, which are standardized for a vacuum pump Pump housing can be used. This arrangement of the intake manifold enables a low axial height of the pump and cost-effective manufacture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Fluid-Driven Valves (AREA)
  • Eye Examination Apparatus (AREA)
  • Compressor (AREA)

Abstract

L'invention concerne une pompe, notamment une pompe à vide pour des véhicules automobiles, qui comprend une bride de pompe (3) et un carter de pompe (2) qui peut être un carter tonneau en tôle. La pompe selon l'invention comprend également un manchon d'aspiration (1) qui est relié à une chambre d'aspiration réalisée dans le compartiment de pompe (7) et qui présente un clapet antiretour (6) empêchant le passage d'un moyen de pression à travers le manchon d'aspiration (1) dans un sens d'écoulement.
PCT/EP2004/000277 2003-01-17 2004-01-16 Pompe WO2004065795A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502004012345T DE502004012345D1 (de) 2003-01-17 2004-01-16 Pumpe
EP04702662A EP1588054B1 (fr) 2003-01-17 2004-01-16 Pompe
AT04702662T ATE503931T1 (de) 2003-01-17 2004-01-16 Pumpe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10301622.8 2003-01-17
DE10301622 2003-01-17

Publications (1)

Publication Number Publication Date
WO2004065795A1 true WO2004065795A1 (fr) 2004-08-05

Family

ID=32747454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/000277 WO2004065795A1 (fr) 2003-01-17 2004-01-16 Pompe

Country Status (4)

Country Link
EP (1) EP1588054B1 (fr)
AT (1) ATE503931T1 (fr)
DE (1) DE502004012345D1 (fr)
WO (1) WO2004065795A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048055A1 (fr) * 2004-10-29 2006-05-11 Joma-Hydromechanic Gmbh Ailette pour pompe a rotor
WO2007054055A1 (fr) * 2005-11-09 2007-05-18 Ixetic Hückeswagen Gmbh Pompe, en particulier pompe a vide a palettes coulissantes
WO2008003279A2 (fr) * 2006-07-01 2008-01-10 Ixetic Hückeswagen Gmbh Pompe à vide
WO2010085935A2 (fr) 2009-02-02 2010-08-05 Ixetic Hückeswagen Gmbh Couvercle de carter de pompe à vide
WO2011134448A3 (fr) * 2010-04-26 2013-03-07 Ixetic Hückeswagen Gmbh Pompe à vide
US8740589B2 (en) 2008-11-20 2014-06-03 Joma-Polytec Gmbh Vacuum pump

Citations (3)

* 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"
US4360326A (en) * 1979-02-08 1982-11-23 Volkswagenwerk Ag Oil lubricated vacuum pump including an oil separator disposed adjacent of its suction opening
DE10147325A1 (de) * 2000-10-18 2002-05-16 Luk Automobiltech Gmbh & Co Kg Pumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360326A (en) * 1979-02-08 1982-11-23 Volkswagenwerk Ag Oil lubricated vacuum pump including an oil separator disposed adjacent of its suction opening
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"
DE10147325A1 (de) * 2000-10-18 2002-05-16 Luk Automobiltech Gmbh & Co Kg Pumpe

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006048055A1 (fr) * 2004-10-29 2006-05-11 Joma-Hydromechanic Gmbh Ailette pour pompe a rotor
WO2007054055A1 (fr) * 2005-11-09 2007-05-18 Ixetic Hückeswagen Gmbh Pompe, en particulier pompe a vide a palettes coulissantes
WO2008003279A2 (fr) * 2006-07-01 2008-01-10 Ixetic Hückeswagen Gmbh Pompe à vide
WO2008003279A3 (fr) * 2006-07-01 2008-03-13 Ixetic Hueckeswagen Gmbh Pompe à vide
US8740589B2 (en) 2008-11-20 2014-06-03 Joma-Polytec Gmbh Vacuum pump
WO2010085935A2 (fr) 2009-02-02 2010-08-05 Ixetic Hückeswagen Gmbh Couvercle de carter de pompe à vide
WO2010085935A3 (fr) * 2009-02-02 2012-01-26 Ixetic Hückeswagen Gmbh Couvercle de carter de pompe à vide
WO2011134448A3 (fr) * 2010-04-26 2013-03-07 Ixetic Hückeswagen Gmbh Pompe à vide

Also Published As

Publication number Publication date
ATE503931T1 (de) 2011-04-15
EP1588054B1 (fr) 2011-03-30
EP1588054A1 (fr) 2005-10-26
DE502004012345D1 (de) 2011-05-12

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