EP1766240B1 - Pompe à vide à une ailette - Google Patents

Pompe à vide à une ailette Download PDF

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Publication number
EP1766240B1
EP1766240B1 EP05742896A EP05742896A EP1766240B1 EP 1766240 B1 EP1766240 B1 EP 1766240B1 EP 05742896 A EP05742896 A EP 05742896A EP 05742896 A EP05742896 A EP 05742896A EP 1766240 B1 EP1766240 B1 EP 1766240B1
Authority
EP
European Patent Office
Prior art keywords
rotor
vacuum pump
housing
pump according
blade
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.)
Active
Application number
EP05742896A
Other languages
German (de)
English (en)
Other versions
EP1766240A1 (fr
Inventor
Willi Schneider
Martin Thoma
Pfitzer Friedhelm
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 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
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Application filed by Joma Hydromechanic GmbH filed Critical Joma Hydromechanic GmbH
Publication of EP1766240A1 publication Critical patent/EP1766240A1/fr
Application granted granted Critical
Publication of EP1766240B1 publication Critical patent/EP1766240B1/fr
Active legal-status Critical Current
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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
    • 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
    • F01C21/0809—Construction of vanes or vane holders
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/22—Manufacture essentially without removing material by sintering
    • 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
    • F04C2240/20—Rotors

Definitions

  • the invention relates to a single-wing vacuum pump with a cup-shaped housing, a rotor rotatably mounted eccentrically in the housing, a wing slidably mounted in the rotor orthogonal to the axis of rotation, and a housing cover which closes the work spaces separated from the wing.
  • Vacuum pumps with such a construction are made, for example DE 195 00 542 known. They usually have an existing metal housing, in which a rotor is rotatably mounted and in which the work spaces are formed. The rotor is rotated, for example, by the engine of a motor vehicle. It is also known that these rotors are made of metal and in particular of sintered metal. Due to the high weight of the rotor this has a large moment of inertia, whereby the power consumption of the vacuum pump is undesirably high.
  • the invention is therefore based on the object to provide a vacuum pump, in particular a single-wing vacuum pump, which has a lower power consumption.
  • the invention is to manufacture only portions of the rotor of a different metal, which has a lower weight. This will reduce the total weight of the rotor reduces and reduces the moment of inertia. This ensures that the power consumption of the vacuum pump is lower than in conventional units.
  • the parts of the rotor which have to transmit large moments are still made of metal, whereas the portions of the rotor may be made of a different material, which are less stressed.
  • the rotor has a rotor axis and a rotor housing mounted on the rotor axis.
  • the rotor axis has the task of introducing the torque required to drive the pump and to set the rotor with wings in rotation.
  • the rotor housing has the task of receiving and guiding the wing.
  • the rotor housing according to the invention consists of plastic. Plastics, especially when paired with a metal, here with a metal wing, have excellent tribological properties, thereby minimizing frictional forces, which also counteracts excessive heating.
  • the rotor housing may still have the task to seal the two working spaces against each other by the rotor housing contacts the inner peripheral wall. If the pump housing is made of metal and the rotor housing is made of plastic, then the frictional forces are reduced and a good seal is achieved.
  • Preferred embodiments provide for the rotor housing the following plastics: polyetheretherketone (PEEK), polyethersulphide (PES), syndiotactic polystyrene (SPS) or a polyphenylene sulphide (PPS) These plastics are extremely resistant to abrasion and are resistant to lubricants.
  • PEEK polyetheretherketone
  • PES polyethersulphide
  • SPS syndiotactic polystyrene
  • PPS polyphenylene sulphide
  • a simple assembly of the rotor is achieved in that the rotor housing is mounted on the rotor axis, in particular axially. Plug connections are easy and in particular can be produced without tools. In addition, no forces act in or against the direction of insertion during operation of the vacuum pump, so that a release of the connector is not to be feared.
  • the invention provides that the rotor axis for receiving the rotor housing has at least two parallel to the axis of rotation projecting mandrels.
  • the rotor housing has two attachable to the mandrels sleeves.
  • the shape of the mandrels and the sleeves is advantageously chosen so that not only the rotor housing is securely held by the rotor axis, but also that the wing holding executives are supported on the sleeves of the thorns.
  • the spines extend at least over part of the height of the wings.
  • the spines extend at least over part of the height of the wings.
  • the spines are e.g. extend over a height of 10% - 20% of the wing, to be able to hold and guide safely, the other, not penetrated by the thorns part of the sleeves stiffened by bracing. This also saves material and thus in weight.
  • the reference numeral 10 denotes a vacuum pump in total, in which the housing 12 is shown without housing cover.
  • the housing 12 has a suction port 14, which opens into an interior 16.
  • a generally designated 18 rotor in which a wing 20 is mounted orthogonal to the axis of rotation 21 slidably.
  • the rotor 18 is constructed in two parts and has a rotor axis 22 and a rotor housing 24.
  • the rotor axis 22 passes through the housing 12, in particular a bottom 26 of the interior 18 via a drive opening 28 and protrudes with a rectangular portion 30 on the rear side out of the housing 12, over which it is rotated (by means of a drive, not shown) in rotation.
  • the drive opening 28 is provided with suitable sealing means, so that neither lubricant leak nor air and / or dirt in the interior 16 can occur.
  • the section 30 continues into a cylindrical section 32 with a circular cross section, as can be seen from FIG.
  • the section 32 is followed by a plate 34, from which two mandrels 36 protrude axially.
  • the mandrels 36 are provided with recesses 38 so that they are essentially each formed by a wall 40 having the shape of the letter "D".
  • a tread 42 which is formed by a part of the top of the plate 34.
  • a lubricant bore 44 through which the tread 42 and other treads or generally the interior space 16 and / or the wing 20 are supplied with lubricant.
  • FIG. 3 shows the rotor housing 24, which has a vertical section which corresponds to an inverted or downwardly open "U".
  • the rotor housing 24 has two sleeves 46 which are interconnected via a bridge 48. These sleeves 46 are formed largely hollow, which is apparent from the figure 4.
  • the two sleeves 46 define between them two running surfaces 50 against which the broad sides of the wing 20 abut.
  • the section of the underside of the bridge 48 lying between the two sleeves 46 also forms a running surface 52 against which the second narrow side of the wing 20 rests. Over the running surfaces 42, 50 and 52 of the wing 20 is thus guided defined and can be moved to both sides of the wing longitudinal axis 54.
  • the sleeves 46 have a first section 56 into which the pins 36 can be inserted. Adjoining this first section 56 is a second section 58, which is also hollow, in which, however, struts 60 extend, which are arranged in particular in an approximately radial direction.
  • the Sleeves 46 are thus mainly formed by walls having a substantially "D-shape". The mass of the rotor housing 24 is therefore relatively low.
  • the mandrels 36 are hollow, their mass is determined by the weight of the walls 40.
  • the rectangular portion 30 is made hollow, whereby its mass is reduced. This cavity extends from the free end of the portion 30 to the lubricant bore 44. This cavity is bounded by the substantially rectangular wall of the portion 30.
  • the parts of the cylindrical portion 32 protruding laterally beyond the section 30 are also hollow, these cavities extending to the underside of the plate 34 and having a substantially D-shaped cross section on each side. As a result, the mass of the portion 32 is reduced.
  • a further reduction in the weight of the rotor 18 is achieved in that a part of the rotor 18 is made of sintered metal, whereas the other part is a plastic part.
  • the rotor housing 24 is made of plastic.

Landscapes

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

Claims (11)

  1. Pompe à vide à une ailette (10) comprenant un boîtier (12) en forme de pot, un rotor (18) logé rotatif et excentré dans le boîtier (12), une ailette (20) logée dans le rotor (18) de façon à pouvoir coulisser perpendiculairement à l'axe de rotation, et un couvercle de boîtier fermant les espaces de travail séparés de l'ailette (20), le rotor (18) étant au moins en partie à base de métal fritté, caractérisée en ce que le rotor (18) présente un axe de rotor (22) et un boîtier de rotor (24) emboîté sur l'axe de rotor (22) et en ce que l'axe de rotor (22) présente au moins deux mandrins (36) dépassant parallèlement à l'axe de rotation pour le logement du boîtier de rotor (24).
  2. Pompe à vide à une ailette selon la revendication 1, caractérisée en ce que l'axe de rotor (22) est à base de métal fritté.
  3. Pompe à vide à une ailette selon la revendication 1 ou 2, caractérisée en ce que le boîtier de rotor (24) est en plastique.
  4. Pompe à vide à une ailette selon la revendication 3, caractérisée en ce que le plastique est un polyétheréthercétone (PEEK), un sulfure de polyéther (PES), un polystyrène syndiotactique (SPS) ou un sulfure de polyphénylène (PPS).
  5. Pompe à vide à une ailette selon l'une quelconque des revendications précédentes, caractérisée en ce que le boîtier de rotor (24) présente deux douilles (46) pouvant être emboîtées sur les mandrins (36).
  6. Pompe à vide à une ailette selon la revendication 5, caractérisée en ce que les mandrins (36) s'étendent au moins sur une partie de la hauteur de l'ailette (20).
  7. Pompe à vide à une ailette selon les revendications 5 et 6, caractérisée en ce que l'autre partie (58), non traversée par les mandrins (36), des douilles (46) est rigidifiée au moyen de renforts (60).
  8. Pompe à vide à une ailette selon l'une quelconque des revendications précédentes, caractérisée en ce que le rotor (18) est réalisé en creux.
  9. Pompe à vide à une ailette selon l'une quelconque des revendications précédentes, caractérisée en ce que l'axe de rotor (22) ou le boîtier de rotor (24) présente des cavités.
  10. Pompe à vide à une ailette selon l'une quelconque des revendications précédentes, caractérisée en ce que l'axe de rotor (22) présente trois cavités.
  11. Pompe à vide à une ailette selon l'une quelconque des revendications précédentes, caractérisée en ce que le rotor (18) est à base de métal fritté seulement par endroits.
EP05742896A 2004-07-09 2005-04-20 Pompe à vide à une ailette Active EP1766240B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004034925A DE102004034925B3 (de) 2004-07-09 2004-07-09 Einflügelvakuumpumpe
PCT/EP2005/004209 WO2006005380A1 (fr) 2004-07-09 2005-04-20 Pompe à vide à une ailette

Publications (2)

Publication Number Publication Date
EP1766240A1 EP1766240A1 (fr) 2007-03-28
EP1766240B1 true EP1766240B1 (fr) 2007-11-14

Family

ID=34967982

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05742896A Active EP1766240B1 (fr) 2004-07-09 2005-04-20 Pompe à vide à une ailette
EP05772163A Active EP1766242B1 (fr) 2004-07-09 2005-06-30 Ailette pour pompe a vide a une seule ailette

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP05772163A Active EP1766242B1 (fr) 2004-07-09 2005-06-30 Ailette pour pompe a vide a une seule ailette

Country Status (6)

Country Link
EP (2) EP1766240B1 (fr)
KR (2) KR101131741B1 (fr)
CN (2) CN100529405C (fr)
CA (2) CA2575775A1 (fr)
DE (3) DE102004034925B3 (fr)
WO (2) WO2006005380A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006016243A1 (de) 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotorpumpe und Flügel für eine Rotorpumpe
ITTO20060673A1 (it) 2006-09-21 2008-03-22 Vhit Spa Pompa rotativa a palette
WO2009062592A2 (fr) * 2007-11-13 2009-05-22 Ixetic Hückeswagen Gmbh Rotor fritté
WO2012010397A2 (fr) * 2010-07-03 2012-01-26 Mahle International Gmbh Pompe à palette rotative
DE112012002375A5 (de) * 2011-06-07 2014-02-27 Ixetic Bad Homburg Gmbh Rotor für eine Flügelzellenpumpe
US8961148B2 (en) 2011-07-19 2015-02-24 Douglas G. Hunter Unified variable displacement oil pump and vacuum pump
JP5840331B2 (ja) 2013-10-07 2016-01-06 三桜工業株式会社 負圧ポンプ及びシリンダヘッドカバー
KR101909783B1 (ko) * 2016-02-11 2018-10-18 김경수 외부 케이싱과 동기하여 회전하는 회전형 베인 펌프 또는 진공 펌프
WO2017152939A1 (fr) * 2016-03-07 2017-09-14 Pierburg Pump Technology Gmbh Pompe à vide pour automobile
JP6826561B2 (ja) 2018-07-11 2021-02-03 大豊工業株式会社 ベーンポンプ

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4088426A (en) * 1976-05-17 1978-05-09 The Rovac Corporation Sliding vane type of compressor-expander having differential eccentricity feature
JPS5720852Y2 (fr) * 1978-05-22 1982-05-06
IT1130363B (it) * 1980-01-29 1986-06-11 Leonardo Beltrame Compressore a capsulismo con girante perfezionato,utile in particolare per gonfiaggio od alimentazione di avvisatoripneumatici per veicoli
DE3131442C2 (de) * 1981-08-07 1987-03-19 Mitsubishi Denki K.K., Tokio/Tokyo Pumpe
DE8602905U1 (de) * 1986-02-05 1986-03-27 Strittmatter, Hans-Peter, 78112 St Georgen Flügelzellenpumpe
DE3916869A1 (de) * 1989-05-24 1990-11-29 Korinek Anton Dipl Ing Fh Rotationsschieberpumpe
DE4020082C2 (de) * 1989-07-07 1998-09-03 Barmag Barmer Maschf Flügelzellen-Vakuumpumpe
DE4208194A1 (de) * 1992-03-14 1993-09-16 Leybold Ag Verfahren zum betrieb einer oelgedichteten vakuumpumpe sowie fuer die durchfuehrung dieses verfahrens geeignete vakuumpumpe
DE19500542B4 (de) * 1995-01-11 2004-02-12 Pierburg Gmbh Drehkolbenpumpe
DE19703499C2 (de) * 1997-01-31 2002-10-17 Pierburg Ag Drehkolbenpumpe
IT1293672B1 (it) * 1997-08-01 1999-03-08 Magneti Marelli Spa Depressore rotativo a palette.
JP2002525498A (ja) * 1998-09-30 2002-08-13 ルク オートモービルテクニーク ゲーエムベーハー アンド シーオー．カーゲー 真空ポンプ
KR100385683B1 (ko) * 1998-12-14 2003-05-27 미쓰비시덴키 가부시키가이샤 자동차용 베인식 진공펌프
DE10012406A1 (de) * 2000-03-15 2001-09-20 Joma Hydromechanic Gmbh Vakuumpumpe
DE50100666D1 (de) * 2000-03-15 2003-10-30 Joma Hydromechanic Gmbh Verdrängerpumpe
DE10046697A1 (de) * 2000-09-21 2002-04-11 Bosch Gmbh Robert Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe
DE50210520D1 (de) * 2001-10-15 2007-08-30 Ixetic Hueckeswagen Gmbh Vakuumpumpe

Also Published As

Publication number Publication date
DE502005002846D1 (de) 2008-03-27
CN101002024A (zh) 2007-07-18
KR101225346B1 (ko) 2013-01-23
CA2575890A1 (fr) 2006-01-19
KR101131741B1 (ko) 2012-04-05
WO2006005445A1 (fr) 2006-01-19
WO2006005380A1 (fr) 2006-01-19
KR20070042547A (ko) 2007-04-23
EP1766242A1 (fr) 2007-03-28
CN101010514A (zh) 2007-08-01
DE502005002006D1 (de) 2007-12-27
KR20070034092A (ko) 2007-03-27
CA2575775A1 (fr) 2006-01-19
CN100529405C (zh) 2009-08-19
EP1766240A1 (fr) 2007-03-28
EP1766242B1 (fr) 2008-02-13
DE102004034925B3 (de) 2006-02-16

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