CN101002022A - Single-winged vacuum pump - Google Patents

Single-winged vacuum pump Download PDF

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Publication number
CN101002022A
CN101002022A CNA2005800270419A CN200580027041A CN101002022A CN 101002022 A CN101002022 A CN 101002022A CN A2005800270419 A CNA2005800270419 A CN A2005800270419A CN 200580027041 A CN200580027041 A CN 200580027041A CN 101002022 A CN101002022 A CN 101002022A
Authority
CN
China
Prior art keywords
vacuum pump
inserts
vane vacuum
single vane
expulsion valve
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.)
Granted
Application number
CNA2005800270419A
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Chinese (zh)
Other versions
CN101002022B (en
Inventor
维利·施奈德
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 Hydromechanic GmbH
Original Assignee
Joma Hydromechanic 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 Joma Hydromechanic GmbH filed Critical Joma Hydromechanic GmbH
Publication of CN101002022A publication Critical patent/CN101002022A/en
Application granted granted Critical
Publication of CN101002022B publication Critical patent/CN101002022B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F04C29/128—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 of the elastic type, e.g. reed valves
    • 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
    • F04C18/3442—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 the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high 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
    • 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
    • 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

Landscapes

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

Abstract

The invention relates to a single-winged vacuum pump provided with a pot-shaped housing (12), a rotor (18) which is mounted in a rotational and eccentric manner in the housing, a wing (20) which is displacably mounted in the rotor and which is orthogonal to the rotational axis, whereby the points of the wings are placed on the peripheral surface (22) which defines a work chamber (30) and which subdivides the work chamber into a suction chamber (40) and a pressure chamber (42), and the suction chamber is provided with an air inlet and the pressure chamber (42) is provided with an air outlet (48). The air outlet is arranged in the peripheral surface surrounding the pressure chamber (42).

Description

Single vane vacuum pump
Technical field
The present invention relates to a kind of single vane vacuum pump, it has cup-shaped shell, eccentricly is installed in rotor in the shell rotationally, is installed in blade in the rotor movably perpendicular to rotatingshaft, the vane tip that this blade pass is crossed it abuts on the inner circumferential surface that limits working space, and working space is divided into suction chamber and pressure chamber in this case, and described suction chamber is provided with suction port, and described pressure chamber is provided with relief opening.
Background technique
Known vacuum pump with this spline structure.It has the wherein rotatable shell that rotor is installed usually, and its rotor is arranged in working space.Such vacuum pump is used for automobile in addition, the motor driven rotor rotation of automobile for example in automobile.This vacuum pump is by oil lubrication, and this oil is used to be sealed in the seal clearance between blade and the working space equally.Strive for exporting in the relief opening of the pressure chamber of the least possible oil from working space.
Summary of the invention
Therefore task of the present invention is, a kind of single vane vacuum pump is provided, and the air that wherein leaves pressure chamber is loaded by less oil.
This task solves in the following manner by the single vane vacuum pump that starts described type according to the present invention, and promptly described relief opening is arranged on the inner circumferential surface of pressure chamber.
In single vane vacuum pump according to the present invention, relief opening is arranged in around the circumferential surface of pressure chamber rather than is positioned at the bottom of pressure chamber as prior art, and this pressure chamber is run through joint by rotor.By the layout of relief opening on peripheral wall, following major advantage is provided, promptly the size of open cross-section can be than relief opening bigger that is arranged in the bottom.Therefore this pressure chamber emptying and need less energy to be used for extracting the air of drawing out apace from pressure chamber.In addition, the modification of the shape by pressure chamber causes little by little opening.So edge of opening for example is formed obliquely, so relief opening at first provides small cross section, and it is big that this cross section becomes gradually.Therefore avoid compression shock.
Propose in an expansion scheme, expulsion valve is directly connected in relief opening.This has following major advantage, i.e. the air dead band that can not be drawn out of, and for example the space between pressure chamber and inner circumferential surface and drain itself is limited to minimum.
Advantageously, described expulsion valve is arranged in the peripheral wall of described shell.This layout be save very much the space and avoid shell to be provided with supplementary equipment in the outside.
Advantageously, described expulsion valve is a leaf valve.Such valve is response fast, requires very little structure space and also cheap especially.If it is flat that the back side of expulsion valve is designed to, so described leaf valve preferably abuts on the edge of exhaust port, and do not need for this reason special push auxiliary.Therefore this expulsion valve is closed in aspiration procedure and opens for exhausting air.
In a preferred embodiment, relief opening is provided with inserts, wherein said inserts constitute pressure chamber circumferential surface a part or be integrated in the casing wall.Can determine the size of outlet valve and also determine its shape in case of necessity by described inserts.In an inserts that is integrated in the casing wall, following possibility is provided, promptly exhaust port is passed in the passage, and this passage for example in axial direction leaves this shell.Radially or the air that tangentially leaves in inserts, be diverted to vertically equally.This turns to passage to be arranged in inlet, and this inlet for example is a die castings, so this shell needs less processing charges.
One proposes according to modification of the present invention, is being provided with an oil outlet in the circumferential surface of suction chamber.If rotor is owing to the reason of self always rotates backward, the lubricant oil of assembling in suction chamber is so exported from this oil outlet, because this suction port prevents that by corresponding valve inhaled air and lubricant oil are discharged from again.This air and lubricant oil can overflow by oil outlet now.
Expulsion valve is directly connected in described oil outlet according to the present invention.This valve prevents, when pump is in normal operating condition following time, air and/or oil are inhaled into by this oil outlet.
Be arranged on according to expulsion valve of the present invention in the peripheral wall of described shell.Therefore can obtain aforesaid advantage for the expulsion valve of relief opening.Same this expulsion valve can be configured to leaf valve and advantageously the expulsion valve of oil outlet and the expulsion valve of relief opening are made of single part.This single part with the leaf valve form for example is the plate of punching press, and this plate has two spring-latchs.
According to the present invention, described oil outlet is located in the inserts equally, and wherein said inserts constitutes the part of the described inner circumferential surface of working space or suction chamber.Therefore can draw, described inserts extends to the suction chamber from pressure chamber, and wherein said inserts advantageously stretches on the whole height of inner circumferential surface.Can also carry out the sealing of inner peripheral wall by means of this inserts in addition with respect to the best of rotor.In this case, described inserts is made by flexible material, is made of plastics especially.
Described in this case inserts is as the support or the holding member that are used for expulsion valve, and wherein expulsion valve is arranged between inserts and the casing wall.Perhaps expulsion valve also can be arranged in the inserts, and wherein expulsion valve is for example sealed by the material pressure injection moulding of inserts.
From dependent claims and wherein described in detail with reference to the accompanying drawings the following description of a particularly preferred embodiment and can draw other advantages of the present invention, feature and details.So illustrated in the accompanying drawings and the feature described in specification and the dependent claims according to essence of the present invention can be independent or in any way the combination.
Description of drawings
Shown in the drawings:
Fig. 1 illustrates the erection drawing of vacuum pump; And
Fig. 2 illustrates the perspective view of the shell that does not have rotor and blade, and is illustrated in two outlets in the peripheral wall.
Embodiment
In Fig. 1, represent vacuum pump, do not have the shell 12 of outer housing cover shown in it with reference character 10.This shell 12 has the inhalation interface 14 that leads in the inner chamber 16.Be provided with wholely with 18 rotors of representing in this inner chamber 16, blade 20 is installed in this rotor movably perpendicular to running shaft 21.Rotor 18 has rotor case 24, abuts in by this rotor of this rotor case on the inner circumferential surface 22 of working space 30.Rotor shaft 22 runs through splice enclosure 12, particularly runs through the bottom 26 that engages inner chamber 18 and outstanding from shell 12 overleaf by drive openings 28, so (by means of unshowned driver) rotates this rotor shaft.Drive openings 28 is provided with suitable sealing compound, so that oiling agent can not can not enter into inner chamber 16 from leaving inner chamber 16 and air and/or dirt.Described inner chamber 16 is divided into suction chamber 40 and pressure chamber 42 by blade 20.
This external Fig. 1 as can be seen, inserts 38 is arranged in casing wall 36, this inserts is positioned at from suction chamber 40 to pressure chamber on 42 the transition part.
This transition part is represented with reference character 44 in Fig. 2, and wherein the peripheral wall 46 at this columniform rotor case 24 in transition part 44 tops abuts on this inner circumferential surface 22.Can obviously find out, be provided with relief opening 48 and oil outlet 50 in this scope of the transition part 44 in inner circumferential surface 22.This relief opening 48 extends on the part height of inner circumferential surface 22, but it extends on the whole height of inner circumferential surface 22 equally or extends on the major component at this height at least.
In addition, this relief opening 48 along the circumferential direction extends and ends at the forward position (Stirnkante) 52 of inclination away from transition part 44.Therefore can avoid, relief opening 48 suddenly open or pressure chamber 42 is connected with relief opening 48 too soon, thereby can produce compression shock.Support little by little to open along the mode that the sense of rotation (according to the arrow 54 of Fig. 1) of blade 20 increases gradually with the radial depth of the passage of relief opening 48.
This relief opening 48 is passed in the inserts 38, and Fig. 2 illustrates this inserts above the opening 56 that holds this inserts 38.The passage of relief opening 48 turns to downwards in inserts 38, so the gas of the discharge of shell 12 leaves along being directed downwards of axis of opening 56.
Between inserts 38 and relief opening 48, also be provided with valve body 58, in this valve body, be provided with expulsion valve 60.Valve body 58 has another expulsion valve 62, and this expulsion valve is assigned to oil outlet 50 and cuts out this oil outlet.Two expulsion valves 60 and 62 are configured to leaf valve and open two valves and therefore prevent by opening 48 and 50 suctions along the direction of inner chamber 16 along the direction of inserts 38.For positioning valve 58 accurately, inserts 38 has shape and the thickness notch 64 corresponding to valve body 58, and before inserts 38 was moved in the opening 56, valve body 58 can be inserted in this notch 64.
By the relief opening 48 that is provided with in inner circumferential surface 22, the size of this relief opening will be used to discharge desired torque in simple mode and be reduced to minimum being suitable for volume to be discharged aspect height and the length.Therefore reduce the power drain of vacuum pump 10.

Claims (15)

1. a single vane vacuum pump (10), it has cup-shaped shell (12), the eccentric rotor (18) that is installed in rotationally in the shell (12), be installed in blade (20) in the rotor (18) movably perpendicular to rotatingshaft (21), the vane tip that this blade pass is crossed it abuts on the inner circumferential surface (22) that limits working space (30), and working space (30) is divided into suction chamber (40) and pressure chamber (42) in this case, and described suction chamber (40) is provided with suction port, described pressure chamber (42) is provided with relief opening (48), it is characterized in that described relief opening (48) is arranged on the inner circumferential surface (22) of pressure chamber (42).
2. single vane vacuum pump as claimed in claim 1 is characterized in that, also comprises expulsion valve (60), and described expulsion valve is directly connected in relief opening (48).
3. single vane vacuum pump as claimed in claim 2 is characterized in that, described expulsion valve (60) is arranged in the peripheral wall (36) of described shell (12).
4. as claim 2 or 3 described single vane vacuum pumps, it is characterized in that described expulsion valve (60) is a leaf valve.
5. each described single vane vacuum pump in the claim as described above is characterized in that also comprise inserts (38), described relief opening (48) is located in the inserts (38), and described inserts (38) constitutes the part of described inner circumferential surface (22).
6. each described single vane vacuum pump in the claim as described above is characterized in that also comprise oil outlet (50), this oil outlet is located in the inner circumferential surface (22) of described suction chamber (40).
7. single vane vacuum pump as claimed in claim 6 is characterized in that, also comprises expulsion valve (62), and this expulsion valve is directly connected in described oil outlet (50).
8. single vane vacuum pump as claimed in claim 7 is characterized in that, described expulsion valve (62) is arranged in the peripheral wall (36) of described shell (12).
9. as claim 6 or 7 described single vane vacuum pumps, it is characterized in that described expulsion valve (62) is a leaf valve.
10. as each described single vane vacuum pump in the claim 3 to 9, it is characterized in that described expulsion valve (60,62) is made of single part.
11., it is characterized in that described oil outlet (50) is located in the inserts (38) and described inserts constitutes the part of described inner circumferential surface (22) as each described single vane vacuum pump in the claim 6 to 10.
12., it is characterized in that two inserts integrally constitute as claim 5 and 11 described single vane vacuum pumps.
13., it is characterized in that described inserts (38) is made of plastics as claim 5,11 or 12 described single vane vacuum pumps.
14., it is characterized in that expulsion valve (60,62) is positioned between described inserts (38) and the casing wall (36) as each described single vane vacuum pump in claim 5 or 11 to 13.
15., it is characterized in that expulsion valve (60,62) is integrated in the described inserts (38) as each described single vane vacuum pump in claim 5 or 11 to 13.
CN2005800270419A 2004-07-09 2005-04-20 Single-winged vacuum pump Expired - Fee Related CN101002022B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004034926A DE102004034926B3 (en) 2004-07-09 2004-07-09 A single-blade
DE102004034926.6 2004-07-09
PCT/EP2005/004212 WO2006005383A1 (en) 2004-07-09 2005-04-20 Single-winged vacuum pump

Publications (2)

Publication Number Publication Date
CN101002022A true CN101002022A (en) 2007-07-18
CN101002022B CN101002022B (en) 2012-06-06

Family

ID=34966845

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2005800270419A Expired - Fee Related CN101002022B (en) 2004-07-09 2005-04-20 Single-winged vacuum pump

Country Status (6)

Country Link
EP (1) EP1766239B1 (en)
KR (1) KR20070034090A (en)
CN (1) CN101002022B (en)
CA (1) CA2575780C (en)
DE (2) DE102004034926B3 (en)
WO (1) WO2006005383A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747446A (en) * 2015-01-27 2015-07-01 长城汽车股份有限公司 Vacuum pump, braking system and automobile
CN107923400A (en) * 2015-08-19 2018-04-17 皮尔伯格泵技术有限责任公司 The automobile vacuum pump of lubrication

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20051008A1 (en) 2005-05-30 2006-11-30 O M P Officine Mazzocco Pagnon MOTOR DEPRESSOR FOR MOTOR VEHICLES AND NON-RETURN VALVE FOR THIS HEADER
DE112007001540B4 (en) * 2006-07-21 2016-05-12 Magna Powertrain Hückeswagen GmbH vacuum pump
DE502007004946D1 (en) * 2006-07-21 2010-10-14 Ixetic Hueckeswagen Gmbh VACUUM PUMP
DE102007001593B4 (en) * 2007-01-04 2009-12-31 Joma-Polytec Kunststofftechnik Gmbh vacuum pump
DE102007018247A1 (en) 2007-04-12 2008-10-16 Joma-Hydromechanic Gmbh vacuum pump
DE102010007255A1 (en) 2010-02-09 2011-08-11 Bayerische Motoren Werke Aktiengesellschaft, 80809 Fluid pump for use in machine housing, has rotary shaft arranged in fluid delivery volume, where impeller is arranged at shaft
DE102010044898A1 (en) * 2010-09-09 2012-03-15 Schwäbische Hüttenwerke Automotive GmbH Vacuum pump with ventilation device
KR101307912B1 (en) * 2011-07-27 2013-09-13 (주)모토닉 Electric vacuum pump
KR200470937Y1 (en) * 2012-11-14 2014-02-05 금강정밀(주) The structure of the vacuum pump equipped with a vacuum suction vehicles
DE102013200410B4 (en) 2013-01-14 2017-12-07 Schwäbische Hüttenwerke Automotive GmbH Gas pump with pressure relief to reduce the starting torque
EP3078858A1 (en) * 2015-04-07 2016-10-12 WABCO Europe BVBA Compact, highly integrated, oil lubricated electric vacuum compressor
CN107636312B (en) * 2015-06-02 2019-08-13 皮尔伯格泵技术有限责任公司 Automobile vacuum pump

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191218254A (en) * 1911-08-10 1900-01-01 Baudot Joseph Improvements in Rotary Pumps and Motors.
US1781073A (en) * 1928-06-16 1930-11-11 Keystone Refrigerating Corp Rotary compressor
CH249478A (en) * 1947-01-21 1947-06-30 Wuetrich Ernst Rotary piston machine for conveying liquid or gaseous media.
GB1214185A (en) * 1968-02-28 1970-12-02 Labortechnik Ilmenau Veb Liquid sealed rotary gas pump
US4133617A (en) * 1976-01-27 1979-01-09 Thomas Roach Vane type pump with optional high rate of flow or high pressure characteristics
DE3307856C2 (en) * 1983-03-05 1997-10-23 Gnieser Gmbh Auto Technik Pressure valve of a rotary piston compressor
DE4019854B4 (en) * 1989-07-10 2004-09-16 Saurer Gmbh & Co. Kg Vane vacuum pump
DE4033420C2 (en) * 1990-10-20 1999-09-02 Bosch Gmbh Robert Pressure valve
DE4118934C2 (en) * 1991-06-08 2001-04-05 Bosch Gmbh Robert compressor
CN2219973Y (en) * 1995-03-28 1996-02-14 陈时云 Blade type vacuum pump
JP2000205159A (en) * 1999-01-11 2000-07-25 Hitachi Ltd Vane type vacuum pump
DE29920737U1 (en) * 1999-11-26 2000-02-03 Leybold Vakuum GmbH, 50968 Köln Vacuum pump with outlet
EP1424495A3 (en) * 2000-03-15 2004-06-23 Joma-Hydromechanic GmbH Vane pump
KR100408152B1 (en) * 2001-08-14 2003-12-01 주식회사 우성진공 Cylinder structure of vacuum pump
EP1890040B1 (en) * 2002-11-13 2012-06-27 ixetic Hückeswagen GmbH Vacuum pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104747446A (en) * 2015-01-27 2015-07-01 长城汽车股份有限公司 Vacuum pump, braking system and automobile
CN107923400A (en) * 2015-08-19 2018-04-17 皮尔伯格泵技术有限责任公司 The automobile vacuum pump of lubrication

Also Published As

Publication number Publication date
CA2575780A1 (en) 2006-01-19
WO2006005383A1 (en) 2006-01-19
CA2575780C (en) 2015-07-07
EP1766239B1 (en) 2008-12-03
DE502005006154D1 (en) 2009-01-15
CN101002022B (en) 2012-06-06
DE102004034926B3 (en) 2005-12-29
EP1766239A1 (en) 2007-03-28
KR20070034090A (en) 2007-03-27

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