WO2010031505A2 - Pompe à vide - Google Patents

Pompe à vide Download PDF

Info

Publication number
WO2010031505A2
WO2010031505A2 PCT/EP2009/006464 EP2009006464W WO2010031505A2 WO 2010031505 A2 WO2010031505 A2 WO 2010031505A2 EP 2009006464 W EP2009006464 W EP 2009006464W WO 2010031505 A2 WO2010031505 A2 WO 2010031505A2
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum pump
housing flange
housing
pump according
schmiegespaltbegrenzungsteil
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/EP2009/006464
Other languages
German (de)
English (en)
Other versions
WO2010031505A3 (fr
Inventor
Mirko Kupceric
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.)
Magna Powertrain Hueckeswagen GmbH
Original Assignee
Ixetic Hueckeswagen 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 Ixetic Hueckeswagen GmbH filed Critical Ixetic Hueckeswagen GmbH
Priority to DE112009001987T priority Critical patent/DE112009001987A5/de
Publication of WO2010031505A2 publication Critical patent/WO2010031505A2/fr
Publication of WO2010031505A3 publication Critical patent/WO2010031505A3/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
    • 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
    • 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
    • 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 vacuum pump, in particular a vane pump, with a rotor which is rotatably mounted about a rotation axis on a housing flange and is guided by the at least one wing movable back and forth within a circulation contour of a housing pot, to which the rotor in a nip snugly.
  • the object of the invention is a vacuum pump, in particular a vane pump, with a rotor which is rotatably mounted about a rotation axis on a housing flange and is guided by the at least one wing movable back and forth within a circulation contour of a housing pot, to which the rotor clings in a nip, creating, which has a long life and is inexpensive to produce.
  • the object is in a vacuum pump, in particular a vane pump, with a rotor which is rotatably mounted about a rotation axis on a housing flange and is guided by the at least one wing movable back and forth within a circulation contour of the housing flange separate housing pot, to which the Rotor nestles in a nip, achieved in that the area of the circumferential contour is provided with the nip at a Schmiegespaltbegrenzungsteil, which is summarized in a unit with the housing flange.
  • the processing surfaces of the rotor bearing and the Schmiegespalts can be edited in one setting, for example by milling. This eliminates the need for conventional vacuum pumps setting the Schmiegespalts in the assembly.
  • a preferred embodiment of the vacuum pump is characterized in that the Schmiegespaltbegrenzungsteil is combined in a structural unit and / or assembly unit and / or manufacturing unit and / or processing unit with the housing flange. According to an essential aspect of the invention, the dimensions of the rotor bearing and the Schmiegespalts be matched prior to assembly.
  • a further preferred embodiment of the vacuum pump is characterized in that the Schmiegespaltbegrenzungsteil is integrally connected to the housing flange. This simplifies the manufacture of the housing flange.
  • a further preferred embodiment of the vacuum pump is characterized in that the Schmiegespaltbegrenzungsteil has a portion of the circulation contour. The largest part of the circulation contour is formed on the housing pot. Only the part of the circulation contour with the Schmiegespalt, ie the part of the circulation contour at which the rotor comes to rest or in the immediate vicinity of the rotor is arranged, is formed on the Schmiegespaltbegrenzungsteil.
  • a further preferred embodiment of the vacuum pump is characterized in that the circulation contour in the housing pot has a recess for receiving the Schmie- splaltbegrenzungsteils.
  • the shape and size of the recess are adapted to the dimensions of the Schmiegespaltbegrenzungsteils.
  • a further preferred embodiment of the vacuum pump is characterized in that the Schmiegespaltbegrenzungsteil in the circumferential direction on one side has a chamfer.
  • the bevel is used in particular to reduce pressure peaks by a short-circuit flow is made possible before the Schmiegespalt.
  • the taper develops its effect when the rotor rotates in its normal operating direction of rotation.
  • a further preferred embodiment of the vacuum pump is characterized in that the Schmiegespaltbegrenzungsteil in the circumferential direction on both sides in each case has a chamfer.
  • a further preferred embodiment of the vacuum pump is characterized in that the Schmiegespaltbegrenzungsteil has substantially the shape of a circular cylindrical shell portion, which extends from the housing flange and its extension decreases in the circumferential direction away from the housing flange.
  • the Schmiegespaltbegrenzungsteil has in plan view substantially the shape of a trapezoid.
  • a further preferred embodiment of the vacuum pump is characterized in that the housing flange has a through hole for mounting the rotor.
  • the housing flange has substantially the shape of a circular disk with a through hole for supporting the rotor.
  • a hollow cylinder which serves to receive and support a bearing section of the rotor, starts from the through-hole.
  • a further preferred embodiment of the vacuum pump is characterized in that the housing flange is designed with the Schmiegespaltbegrenzungsteil as injection molded plastic.
  • the rotor bearing surface and the circumferential contour section on the Schmiegespaltbegrenzungsteil can be processed in one clamping.
  • the housing pot is designed as a deep-drawn part. Apart from the recess for receiving the Schmiegespaltbegrenzungsteils the housing pot can be performed exactly as in conventional vacuum pumps.
  • FIG. 1 shows a vacuum pump according to an embodiment of the invention with a cut housing pot
  • Figure 2 is a perspective view of a housing flange of the vacuum pump of Figure 1 without housing pot;
  • FIG. 3 is a perspective view of the vacuum pump of Figure 1 without rotor and without wings and
  • FIG. 4 is a perspective view of the housing flange of the vacuum pump from FIGS. 1 to 3.
  • FIGS. 1 to 4 show a vacuum pump 1 in different views.
  • the vacuum pump 1 comprises a housing with a housing pot 2, which comprises a housing pot bottom 3, from which a housing pot jacket 4 originates.
  • the housing bottom 3 has substantially the shape of a circular disk or other special contours, such as a Pascal's spiral, and is shown in Figures 1 and 3 cut open.
  • the housing pot jacket 4 has essentially the shape of a straight circular cylinder jacket, which starts from the housing bottom 3.
  • a rotor 5 is rotatably received in the housing of the vacuum pump 1.
  • the rotor 5 has a rotor bearing portion, which is rotatably mounted on a housing flange 6 of the housing of the vacuum pump 1.
  • the rotor 5 comprises a wing receiving slot 8, through which a wing 10, at the ends of which a sliding cap 11, 12 is attached, is guided within a circulating contour 14.
  • the circulating contour 14 is formed radially inwardly on the housing pot jacket 4.
  • the operating direction of rotation of the rotor 5 with the wing 10 is indicated in Figures 1 and 3 by an arrow 16.
  • the rotor 5 nestles in a nip 18 against the circulation contour 14, which is also referred to as a stroke contour and limits a working space in the interior of the vacuum pump 1 in the radial direction. In the axial direction of the working space in the vacuum pump 1 is limited by the housing pot bottom 3 and the housing flange 6.
  • the working space of the vacuum pump 1 in the housing is subdivided into a suction chamber and a pressure chamber.
  • the suction chamber is in communication with an inlet port of the vacuum pump 1.
  • a working medium, in particular air is sucked into the suction chamber via the inlet connection and pressurized in the pressure chamber.
  • the vacuum pump 1 which is also referred to as a monoerielzel- lenpumpe because of its one blade 10, used to apply a negative pressure, that is, a vacuum to a brake booster of a motor vehicle.
  • the circulating contour 14 is not formed continuously on the housing pot jacket 4, but in the area of the nip 18 in a Ne ⁇ ri LJrr .laufkonturabrough 19 formed on a Schmiegespaltbegrenzungsteil 20, which is arranged in a recess 21 of the housing pot shell 4.
  • the Schmiegespaltbegrenzungsteil 20 is, as seen in Figures 2 to 4, integrally connected in a connecting portion 26 with the housing flange 6.
  • the housing flange 6 comprises a substantially circular disk-shaped axial boundary surface 22 which is bounded in the radial direction by an annular groove 24 which serves to receive a seal.
  • a through hole is provided, from which a bearing sleeve 30 extends, which has substantially the shape of a straight circular cylinder jacket.
  • the bearing sleeve 30 serves for receiving and supporting the rotor bearing portion, which is formed on the rotor 5.
  • the antifriction limb part 20 has the shape of a trapezium, which is delimited in the circumferential direction by two bevels 34, 35.
  • the two bevels 34, 35 serve to reduce the operation of the vacuum pump 1 unwanted pressure peaks in front of the Schmiegespalt 18 by the pressure peak in the direction of rotation in front of the wing over the wing caps here can briefly reach the back of the wing.
  • the bevels 34, 35 mounted on both sides, unwanted pressure peaks are also reduced when the rotor 5 rotates counter to the normal operating direction of rotation 16 backwards.

Landscapes

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

Abstract

Pompe à vide, en particulier pompe rotative à palettes, qui comporte un rotor monté rotatif autour d'un axe de rotation sur un flasque de carter, et mobile selon un mouvement de va et vient grâce à au moins une palette à l'intérieur d'un profil périphérique d'un pot de carter séparé du flasque de carter, profil que le rotor suit dans une fente osculatrice. Ladite invention se caractérise en ce que la zone du profil périphérique comportant la fente osculatrice est située dans une partie délimitant ladite fente osculatrice qui constitue une unité avec le flasque de carter.
PCT/EP2009/006464 2008-09-16 2009-09-07 Pompe à vide Ceased WO2010031505A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112009001987T DE112009001987A5 (de) 2008-09-16 2009-09-07 Vakuumpumpe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008048534 2008-09-16
DE102008048534.9 2008-09-16

Publications (2)

Publication Number Publication Date
WO2010031505A2 true WO2010031505A2 (fr) 2010-03-25
WO2010031505A3 WO2010031505A3 (fr) 2010-07-29

Family

ID=42039941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/006464 Ceased WO2010031505A2 (fr) 2008-09-16 2009-09-07 Pompe à vide

Country Status (2)

Country Link
DE (1) DE112009001987A5 (fr)
WO (1) WO2010031505A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015144496A1 (fr) * 2014-03-27 2015-10-01 Magna Powertrain Hückeswagen GmbH Pompe à vide et procédé servant à faire fonctionner une pompe à vide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1531904A (en) * 1922-10-23 1925-03-31 Dinesen Laurits Rotary pump
US2112522A (en) * 1936-06-13 1938-03-29 Eddington Metal Specialty Co Pump
DE102004034920B3 (de) * 2004-07-09 2005-12-01 Joma-Hydromechanic Gmbh Einflügelvakuumpumpe
DE102004034922B4 (de) * 2004-07-09 2006-05-11 Joma-Hydromechanic Gmbh Einflügelvakuumpumpe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015144496A1 (fr) * 2014-03-27 2015-10-01 Magna Powertrain Hückeswagen GmbH Pompe à vide et procédé servant à faire fonctionner une pompe à vide
CN106133319A (zh) * 2014-03-27 2016-11-16 麦格纳动力系许克斯瓦根有限责任公司 真空泵和用于运行真空泵的方法
CN106133319B (zh) * 2014-03-27 2017-09-26 麦格纳动力系许克斯瓦根有限责任公司 真空泵和用于运行真空泵的方法

Also Published As

Publication number Publication date
DE112009001987A5 (de) 2011-09-29
WO2010031505A3 (fr) 2010-07-29

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