WO2009127281A1 - Palette d'une pompe à palettes ou d'un compresseur à palettes - Google Patents

Palette d'une pompe à palettes ou d'un compresseur à palettes Download PDF

Info

Publication number
WO2009127281A1
WO2009127281A1 PCT/EP2009/000492 EP2009000492W WO2009127281A1 WO 2009127281 A1 WO2009127281 A1 WO 2009127281A1 EP 2009000492 W EP2009000492 W EP 2009000492W WO 2009127281 A1 WO2009127281 A1 WO 2009127281A1
Authority
WO
WIPO (PCT)
Prior art keywords
wing
vane
vane pump
compressor according
net
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/EP2009/000492
Other languages
German (de)
English (en)
Inventor
Martin FRÖHLICH
Otto Altmann
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.)
Froetek Kunststofftechnik GmbH
Original Assignee
Froetek Kunststofftechnik 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 Froetek Kunststofftechnik GmbH filed Critical Froetek Kunststofftechnik GmbH
Publication of WO2009127281A1 publication Critical patent/WO2009127281A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0007—Radial sealings for working fluid
    • F04C15/0015—Radial sealings for working fluid of resilient material
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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
    • F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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 working space, being surfaces of revolution
    • 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
    • F04C27/001—Radial sealings for working fluid
    • F04C27/003—Radial sealings for working fluid of resilient material

Definitions

  • the invention relates to a vane pump or compressor with at least one displaceably mounted within a rotor wings, wherein the rotor is eccentrically mounted in a hollow cylinder, on the inner wall, the wing end rubbing comes into abutment.
  • Vane pumps and vane compressors with one or more vanes of various wing arrangements, wing bearings and operating principles have been known for several decades.
  • the wings (one or more) of these vane pumps were previously preferably made of metallic materials.
  • wings for vane pumps and compressors made of polymer materials thermoplastics and thermosets
  • Such wings for vacuum and displacement vane pumps, also with mentioned polymer materials are known from DE 10 2006 016 241 A1, DE 2006 012 889 D1, DE 10 2004 064 029 A1 and DE 200 18 958 U1.
  • the wing variants, types and designs in full material or with breakthroughs, previously predominantly in metallic versions, are all closed at the wing tip, so that a plant pressure corresponding to the system pressure with sufficient tightness and small contact surface is not achievable.
  • the object of the invention is to improve a vane-type pump or compressor of the type mentioned above so that the wing tips due to their Elasticity achieve adequate sealing with a small contact surface and low friction.
  • wing end forms a curved resilient tongue, which partially surrounds a cavity which is open to a wing side.
  • Such a wing is able to compensate for the wear-abrasion by a self-regulating contact pressure on the working pressure of the pump or the compressor to reduce the leakage rates.
  • the wing is designed as a spring and can be installed with slight preload, whereby the manufacturing tolerances are compensated.
  • the wing is opened on the side facing the conveying medium with a resilient elasticity, e.g. due to polymer material variants, with a relatively small specific weight for highly accelerated blade masses.
  • the preferably one-piece wing or multi-part wing for one or more leaf vacuum and displacement pump according to claim 1 has by the choice of materials and the geometric design all the features for a self-contact pressure regulating system with wear compensation and tolerance compensation, over the entire life of such pumps and compressors ,
  • the wing has a previously designed opening in the direction of the pumping medium, which presses the winged ends against the outer wall, of the generally circular (other of a circular slightly different embodiments are possible) pump interior via the applied working pressure.
  • the inside of outside tapered wing-ends, viewed over the cross-section, have by a relatively small deformation on a sufficiently high force in order to compensate for the occurring wear over the entire life.
  • the opening at the wing ends may be circular or in the form of an ellipse arranged at a certain angle in order to reduce the cross section of the resilient wing ends and to convert the working pressure into pressing forces against the outer wall. Since the manufacturing tolerances for such a device are extremely small, this type of wing design in the longitudinal direction also ensures that no mechanical reworking such as grinding, lapping or polishing are required, as with the other surfaces of such components. Since the wing acts as an elastic spring at the ends by this type of embodiment described here, the wing can also be installed with a small oversize. Both measures save manufacturing and later user costs and increase the function of lifetime performance, without leakage rate losses.
  • polymeric materials such as carbon fibers, molybdenum disulfide (MoS2), polyerafluoroethylene (PTFE, better known by the brand name Teflon) and others.
  • MoS2 molybdenum disulfide
  • PTFE polyerafluoroethylene
  • Nanocrystals directly initu incorporated into the entire wing material or the wing-end surfaces are provided with metallic or ceramic or glass-ceramic thin layers, which alone or with special primers are sufficiently elastic to ensure the required deformations.
  • the elongation at break or the elongation at break of this thin-film surface materials is adapted to the material of the wing body, which represents a significant differentiation feature to the previously known embodiments.
  • Such wings are preferably made of polymer materials which have corresponding elastic constants in the linear elastic range even under low and high temperature influence eg in hot oil.
  • the wing material will ever selected according to the application so as to ensure the function of the required elastic deformation at the blade ends.
  • Figure 1 is a schematic representation of a vane pump or a
  • Figure 2 is a perspective view of the wing
  • the vane pump or the vane compressor has a hollow cylinder 1 as a stator, in which a cylinder rotates as a rotor 2.
  • the axis of rotation of the rotor 2 is arranged eccentrically to the stator, wherein a position of the outer wall of the rotor contacts the inner wall 9 of the stator.
  • each head 4 forms a laterally open cavity 5 by a projecting tongue 6, which is integrally formed with its foot 7 on a side surface 8 of the wing 3 and extends arcuately away from the wing to the hollow cylinder inner wall 9 back and with its curved outer surface 10 at the wall 9 rests.
  • the cavity 5 is open to the pressure side of the pump chamber.
  • the invention thus relates to a vane-vacuum or displacer micro and macro-pump or compressor having self-working pressure-pressure-controlled internal rotor configurations.
  • the open at both ends of the wings is preferably made in one piece, but can also be multi-piece by a special wing tip is molded directly or complained.
  • the liquid gaseous or solid conveying medium itself pushes the wing tip over an appropriate selection of materials and construction to the outside and thus compensates for the occlusion occurring and tolerances.
  • the contact pressure of the blade edges on the preferably circular inner wall 9 is essentially determined by the working pressure of the pump (media delivery) or the compressor (vacuum).
  • the wing design with an open end at the wing tips ensures low leak rates and consistently high performance of the pumps and compressors throughout their lifetime.
  • the applied working pressure presses the wing edge against the pump or compressor wall 9 and thus compensates for the wear that occurs between 0.05 mm and 0 over the running time , 3mm in relation to the wing length. If abrasion and wear cause wear of only a few 0.001 mm up to a maximum of 0.5 mm, which is the case in experience, this construction ensures a constant high pumping or negative pressure performance over the entire life-span period, since the abrasion is compensated by the contact forces on the bearing line (line) at the inflection point of the wing-end radii.
  • the occurring wear is compensated by the elastic deformation of the adjacent wing ends permanently without further aids or components over the entire life.
  • wing materials all known materials are in question, which are on the mechanical design parameters in a position to ensure by their elongation and deformation properties in the linear-elastic range (important for Ralaxation without permanent damage).
  • polymer materials are used but it is also metals, glass - and glass-ceramic materials and others usable.
  • the wing material itself may be provided with in-situ nanocrystals or other friction and seal reducing fillers such as MoS2, PTFE 1 carbon or aramid (aromatic polyamide) fibers throughout the wing structure, or even at both wing tips.
  • This type of vane design also has advantages in eventual return problems of the pump or compressor.
  • the open end edge acts like a spring. These spring properties of the wing end edges also compensate for any tolerance manufacturing problems that may occur.
  • the wing can be installed with a slight oversize, whereby the wing contour adapts to the outer wall of the circular pump or compressor wall.
  • the wing with the end edges open on both sides is made in this construction of a material (polymer materials, metals or other materials), which has a sufficiently high elongation (deformation) in the linear elastic region as possible, so that the working pressure of the pump on the conveyor media in is able to press the end edges against the wall.
  • the weight of the wing is reduced by regularly arranged in the wing hollow chambers 11 preferably the same size. This construction presented here according to the invention reduces the material consumption and through the system of "equal wall thicknesses" the stresses in the wing component.
  • a recycling of the wings is possible because the wing is preferably made of a material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne une pompe à palettes ou un compresseur à palettes avec au moins une palette montée coulissante à l'intérieur d'un rotor, le rotor étant monté décentré dans un cylindre creux sur la paroi intérieure duquel l'extrémité de palette (4) vient reposer en friction, l'extrémité de palette formant une langue élastique bombée qui entoure partiellement un espace vide qui est ouvert vers l'un des côtés de la palette.
PCT/EP2009/000492 2008-04-17 2009-01-27 Palette d'une pompe à palettes ou d'un compresseur à palettes Ceased WO2009127281A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008019440.9 2008-04-17
DE102008019440A DE102008019440A1 (de) 2008-04-17 2008-04-17 Flügel einer Flügelzellenpumpe oder eines Flügelzellenkompressors

Publications (1)

Publication Number Publication Date
WO2009127281A1 true WO2009127281A1 (fr) 2009-10-22

Family

ID=40933326

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/000492 Ceased WO2009127281A1 (fr) 2008-04-17 2009-01-27 Palette d'une pompe à palettes ou d'un compresseur à palettes

Country Status (2)

Country Link
DE (1) DE102008019440A1 (fr)
WO (1) WO2009127281A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2477945A (en) * 2010-02-18 2011-08-24 Christopher Peter Devereux pump for corrosive liquids
CN105020141A (zh) * 2015-07-24 2015-11-04 裕克施乐塑料制品（太仓）有限公司 一种端部可变形的真空泵叶片及真空泵
CN105492516A (zh) * 2013-03-22 2016-04-13 3M创新有限公司 具有干运转能力的聚合物滑动材料和具有干运转能力的滑环密封件

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004657A1 (fr) 2007-07-03 2009-01-08 O.M.P. Officine Mazzocco Pagnoni S.R.L. Pompe à vide pour moteur de véhicule motorisé
FR2957984B1 (fr) * 2010-03-24 2016-07-29 Barba Willy Del Compresseur ou pompe rotative a palettes semi spheriques "sans huile" pour comprimer ou pomper les fluides gazeux ou liquides
WO2013018102A2 (fr) * 2011-07-29 2013-02-07 Bosch Limited Ensemble de pales pourvu d'un élément ressort intégré
EP2776676A1 (fr) * 2011-09-23 2014-09-17 Willy Del Barba Compresseur ou pompe rotative a palettes semi- spheriques « sans huile « pour comprimer ou pomper les fluides gazeux ou liquides
US9347441B2 (en) * 2012-03-30 2016-05-24 Sabic Global Technologies B.V. Compressors including polymeric components

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832042A1 (de) * 1987-10-05 1989-04-13 Barmag Barmer Maschf Fluegelzellenpumpe
US5226400A (en) * 1992-10-08 1993-07-13 Microfuels, Inc. Device for conversion of liquid fuel into fuel vapor and microscopic liquid droplets
WO1998042984A1 (fr) * 1997-03-24 1998-10-01 Baker Medical Research Institute Pompe volumetrique
WO2004106420A2 (fr) * 2003-05-22 2004-12-09 Zyvex Corporation Nanocomposites et procedes
WO2005056645A1 (fr) * 2003-10-31 2005-06-23 University Of Dayton Procede de fabrication de materiaux nanocomposites
US20060030660A1 (en) * 2004-04-07 2006-02-09 Revcor, Inc. Polymer nanocomposites for air movement devices
WO2006056162A1 (fr) * 2004-11-27 2006-06-01 Ixetic Hückeswagen Gmbh Pompe
US20070088095A1 (en) * 2005-10-18 2007-04-19 General Electric Company Method of improving abrasion resistance of plastic article using nanoparticles and article produced thereby
DE102006012889A1 (de) * 2005-11-14 2007-05-16 Joma Hydromechanic Gmbh Vakuumpumpe
US20080057272A1 (en) * 2006-09-06 2008-03-06 Argonne National Laboratory Modulated composite surfaces

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529106A1 (de) * 1985-08-14 1987-02-26 Ringsdorff Werke Gmbh Korrosionsbestaendige drehschieberpumpe und verfahren zu ihrer herstellung
DE20018958U1 (de) 2000-11-07 2002-03-21 Joma-Hydromechanic GmbH, 72411 Bodelshausen Schieber zum gegenseitigen Trennen der beiden Kammern im Gehäuseraum einer Flügelzellenpumpe oder eines solchen Motors
DE10046697A1 (de) * 2000-09-21 2002-04-11 Bosch Gmbh Robert Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe
DE102004064029B4 (de) 2004-07-09 2008-04-10 Joma-Hydromechanic Gmbh Einflügelvakuumpumpe
ATE452218T1 (de) * 2005-09-10 2010-01-15 Schaeffler Kg VERSCHLEIßFESTE BESCHICHTUNG UND VERFAHREN ZUR HERSTELLUNG DERSELBEN
DE102006016241A1 (de) 2006-03-31 2007-10-04 Joma-Hydromechanic Gmbh Rotorpumpe

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832042A1 (de) * 1987-10-05 1989-04-13 Barmag Barmer Maschf Fluegelzellenpumpe
US5226400A (en) * 1992-10-08 1993-07-13 Microfuels, Inc. Device for conversion of liquid fuel into fuel vapor and microscopic liquid droplets
WO1998042984A1 (fr) * 1997-03-24 1998-10-01 Baker Medical Research Institute Pompe volumetrique
WO2004106420A2 (fr) * 2003-05-22 2004-12-09 Zyvex Corporation Nanocomposites et procedes
WO2005056645A1 (fr) * 2003-10-31 2005-06-23 University Of Dayton Procede de fabrication de materiaux nanocomposites
US20060030660A1 (en) * 2004-04-07 2006-02-09 Revcor, Inc. Polymer nanocomposites for air movement devices
WO2006056162A1 (fr) * 2004-11-27 2006-06-01 Ixetic Hückeswagen Gmbh Pompe
US20070088095A1 (en) * 2005-10-18 2007-04-19 General Electric Company Method of improving abrasion resistance of plastic article using nanoparticles and article produced thereby
DE102006012889A1 (de) * 2005-11-14 2007-05-16 Joma Hydromechanic Gmbh Vakuumpumpe
US20080057272A1 (en) * 2006-09-06 2008-03-06 Argonne National Laboratory Modulated composite surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2477945A (en) * 2010-02-18 2011-08-24 Christopher Peter Devereux pump for corrosive liquids
CN105492516A (zh) * 2013-03-22 2016-04-13 3M创新有限公司 具有干运转能力的聚合物滑动材料和具有干运转能力的滑环密封件
CN105020141A (zh) * 2015-07-24 2015-11-04 裕克施乐塑料制品（太仓）有限公司 一种端部可变形的真空泵叶片及真空泵

Also Published As

Publication number Publication date
DE102008019440A1 (de) 2009-10-22

Similar Documents

Publication Publication Date Title
WO2009127281A1 (fr) Palette d'une pompe à palettes ou d'un compresseur à palettes
EP1847713B1 (fr) Pompe rotative réglable à usure réduite
EP0147654B1 (fr) Machine en particulier pour la compression et le déplacement des fluides
DE102006061326B4 (de) Stelleneinrichtung für eine mengenregelbare Zellenpumpe
EP1377728B1 (fr) Deplaceur de piston oscillant
DE102014107735B4 (de) Flügel mit axialer Abdichtung
EP3655649A1 (fr) Pompe a piston, notamment pompe a carburant haute pression destinee a un moteur a combustion interne
EP3153706A1 (fr) Pompe
DE102006016791B4 (de) Vakuumpumpe
EP2161453A2 (fr) Ensemble de rotor et pompe à rotor
DE102013104069B4 (de) Kreiselpumpe und Anordnung zur saugseitigen Radialspaltabdichtung
DE102011014591B4 (de) Flügelzellenpumpe mit Pumpensteuerring
DE69413537T2 (de) Kreiskolbenverdichter
DE102006055161A1 (de) Lagerschale für eine hydrostatische Maschine und hydrostatische Maschine mit dieser Lagerschale
WO2007009664A1 (fr) Anneau de levage pour une pompe d'injection
WO2009021474A1 (fr) Pompe à vide à palette coulissante
DE102006016244A1 (de) Rotorpumpe
DE102015223452A1 (de) Flügelzellenpumpe
EP1789682B1 (fr) Pompe hybride
EP4621226A1 (fr) Compresseur à piston
WO2010091753A1 (fr) Pompe d'alimentation en carburant
DE102014203193B4 (de) Verstellbare Flügelzellenpumpe
EP1437518A1 (fr) Arrangement de paliers
DE102004002076B4 (de) Flügelzellenpumpe
DE2751384A1 (de) Exzenterpumpe

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09733262

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 09733262

Country of ref document: EP

Kind code of ref document: A1