WO2004074687A2 - Pompe a vide - Google Patents

Pompe a vide Download PDF

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Publication number
WO2004074687A2
WO2004074687A2 PCT/DE2004/000294 DE2004000294W WO2004074687A2 WO 2004074687 A2 WO2004074687 A2 WO 2004074687A2 DE 2004000294 W DE2004000294 W DE 2004000294W WO 2004074687 A2 WO2004074687 A2 WO 2004074687A2
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum pump
slide
caps
pump according
wing
Prior art date
Application number
PCT/DE2004/000294
Other languages
German (de)
English (en)
Other versions
WO2004074687A3 (fr
Inventor
Friedrich Schuler
Ulrich Pabst
Rolf-Albrecht Schmidt
Robert Deipenwisch
Ulrich Hiltemann
Carsten Sczesny
David Ribaric
Original Assignee
Luk Automobiltechnik Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2003107040 external-priority patent/DE10307040A1/de
Application filed by Luk Automobiltechnik Gmbh & Co. Kg filed Critical Luk Automobiltechnik Gmbh & Co. Kg
Priority to DE112004000073T priority Critical patent/DE112004000073D2/de
Publication of WO2004074687A2 publication Critical patent/WO2004074687A2/fr
Publication of WO2004074687A3 publication Critical patent/WO2004074687A3/fr

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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/001—Radial sealings for working fluid
    • 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
    • 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
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/12—Polyetheretherketones, e.g. PEEK
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/14—Foam

Definitions

  • the invention relates to a vacuum pump, in particular for brake booster systems for motor vehicles, with a plastic slide or wing, which, for. B. is known as a mono-wing type.
  • plastic slide valves for vane pumps are mostly solid, which leads to relatively long cycle times in injection molding and to high costs in the production as an injection molded part.
  • the weight leads to high inertial forces and thus to an increased load and wear on the pumps.
  • plastic slides are known, which are provided with open-edge cavities and are ribbed. The open structure has little stability. There is also a risk that weak spots may arise from weld lines, sink marks and strongly anisotropic material properties.
  • the use of cores means that the injection molding tool is relatively complex and not very robust.
  • the invention further relates to a vacuum pump with a plastic slide or wing, the plastic slide or wing being made of a thermoset material, in particular a high-strength thermoset material.
  • the known thermoset wing has caps at its ends, which are made from an expensive high-performance thermoplastic, such as PEEK.
  • a vacuum vane cell pump with a plastic slide or vane which is characterized in that the slide or vane has one or more cavities on the inside, the cavities being closed to the outside except for one injection opening each.
  • the cavities of the plastic slide are produced in an injection molding process by injecting a fluid (gas or liquid) under pressure (internal pressure injection molding).
  • a plastic slide is preferred in which the injection opening is arranged centrally on one of the two wide side surfaces.
  • a vacuum pump with a plastic slide is preferred, in which the injection opening is arranged centrally on one of the two narrow side surfaces.
  • a vacuum pump according to the invention with a plastic slide is characterized in that the injection opening can be closed after the fluid injection has ended, for. B. by melt that is added during the injection molding process, or a poured or pressed or clipped or welded or screwed or riveted or glued in plug or by subsequent melting of the injection site.
  • the object is further achieved by a vacuum pump with a plastic slide or wing, in particular for brake booster systems for motor vehicles, the slide or wing having a foamed, porous material structure on the inside, while having a compact, closed outer skin on its surface.
  • a vacuum pump with a plastic slide or wing in particular for brake booster systems for motor vehicles, the slide or wing having a foamed, porous material structure on the inside, while having a compact, closed outer skin on its surface.
  • a vacuum pump with a plastic slide is preferred, in which the foamed material structure is produced in an injection molding process by admixing a gas.
  • This has the advantage that when the plastic cools, a dense structure forms on the housing wall, while a porous structure is created on the inside. A gas pressure builds up in the material, which largely prevents the part from shrinking when cooling down and sink marks are formed.
  • a vacuum pump according to the invention is characterized in that a gas is added chemically by adding a gas generator.
  • The has the advantage that the gas generator decomposes when heated in the injection molding machine and releases gas.
  • Another vacuum pump according to the invention is characterized in that the admixing of a gas is carried out by blowing gas into the liquid plastic mass. This method has the advantage of a simple physical process.
  • a vacuum pump is also preferred, in which a gas is admixed by injecting a liquid which evaporates and thus causes the foaming process.
  • a vacuum pump according to the invention is characterized in that the slide or wing has a low degree of foaming, for example 1.5% to 10%. This has the advantage that the dimensional accuracy of the slide is increased and sink marks are avoided.
  • Another vacuum pump according to the invention is characterized in that the slide or wing has a high degree of foaming of 10 to 80%. This has the advantage that the weight of the wing is significantly reduced.
  • Another vacuum pump according to the invention has separate caps on one or both ends of the slide, which represent sliding sealing surfaces with respect to a housing contour of the vane vacuum pump.
  • the caps represent wear protection caps and / or low-friction sliding caps and / or sealing caps.
  • Another vacuum pump according to the invention is characterized in that the caps are made of a different material than the plastic slide.
  • thermoset material in particular special high-strength thermoset material is shown, the caps being made of a wear-resistant, low-friction thermoset material.
  • a vacuum pump is also preferred, in which the caps can be firmly connected to the slide by casting or welding or gluing or clipping on or pressing on. This has the advantage that no relative movement between the slide and the caps can occur during operation.
  • a vacuum pump is preferred in which the caps are attached and a relative movement is possible between the slide and the caps. This allows function-related and production-related games to be compensated for.
  • a vacuum pump according to the invention is characterized in that the caps are placed on the tapered slide ends from the outside.
  • a vacuum pump is also preferred, in which the caps are pushed axially (from the side) onto the slide.
  • a vacuum pump is preferred in which the plastic slide or vane is made of a high-strength thermoset material and the entire surface of the slide is extrusion-coated with a wear-resistant, low-friction thermoset.
  • Figure 1 shows a one-piece slide.
  • Figure 2 shows a slide with firmly connected caps.
  • Figure 3 shows a slide with attached caps.
  • Figure 4 shows a foamed one-piece slide.
  • Figure 5 shows a foamed slider with firmly connected caps.
  • Figure 6 shows a foamed slider with attached caps.
  • Figure 7 shows a completely overmolded slide.
  • Figure 8 shows a slide with attached caps.
  • Figure 9 shows another slide with attached caps.
  • Figure 10 shows a further cap arrangement.
  • Figure 11 also shows another cap arrangement.
  • a plastic slide 1 is shown in perspective.
  • the outer surface of the slide consists of two wide side surfaces 3, two narrow side surfaces 5 and two head surfaces 7, which serve as sliding surfaces with respect to a housing contour of the pump.
  • the slider 1 is completely closed at its edges and surfaces except for an injection opening 11 which can be arranged centrally on one of the large side surfaces 3 or alternatively can be arranged centrally as an injection opening 13 on one of the two narrow side surfaces 5.
  • a fluid is injected under pressure through the injection opening 11 or 13, which presses the liquid plastic against the walls of the injection mold, from which the solidification process then spreads by cooling.
  • the fluid pressure is maintained until the plastic solidifies and cools down, as a result of which a high degree of dimensional accuracy is achieved and sink marks can be largely avoided.
  • This process creates a slide 1 with a light structure and high rigidity.
  • the hollow design ensures a low weight. Because the fluid pressure is maintained until the plastic solidifies and cools down, there is no risk of sink marks occurring during cooling, so that a high manufacturing accuracy of the slide can be cost-effectively represented.
  • a plate-shaped component with large functional areas with high demands on flatness and dimensional accuracy can thus be produced with the method.
  • Figures 1 a and 1 b show in cross section a one-piece slide without attached caps.
  • 1 shows the injection opening 13 in one of the two narrow side faces 5.
  • the other side face 5 and the two end faces 7, like the wide side faces 3, are completely closed.
  • the corresponding fluid is introduced under pressure into the filled plastic mold through the injection opening 13 in such a way that it enters the plastic mass in the middle of the injection mold and from there builds up a pressure volume uniformly on all sides, which the plastic presses the material against the injection molding wall and from there, by progressively cooling, guarantees an evenly uniform layer build-up.
  • the fluid pressure is maintained until the liquid plastic has evenly accumulated on the inside of the solidified plastic mass and has solidified by cooling and thus forms a uniform wall thickness.
  • the corresponding fluid pressure is only lowered after the plastic mass has cooled completely, so that sink marks can no longer occur due to cooling.
  • Figure 2 shows a slide 1 with firmly connected caps.
  • the two end faces 7 of the slider 1 are firmly overlaid here with plastic caps 9, which can be made of a different material than the rest of the slider material, so as to meet special requirements with regard to sliding properties, low friction, wear and sealing effect.
  • the valve body itself on the other hand, must primarily have properties such as rigidity and mechanical strength as well as low weight and high stability.
  • the caps 9 can therefore consist of a different material than the slide 1, which is preferably made of thermoplastic.
  • the caps 9 can be firmly connected to the slider 1 by casting or welding or gluing or clipping on or pressing on, so that no relative movement between the slider 1 and the caps 9 can occur during operation.
  • FIG. 3 shows a further embodiment of a slide 1, which has attached caps 15.
  • the end faces 7 of the slide 1 show cams 17 which serve as a form-fitting hold for the caps 15.
  • the cams additionally have two protruding strips 21 which can engage in corresponding grooves 23 within the caps 15.
  • the caps 15 can in turn be made of a different material than the slide 1 in order to achieve the different properties described above.
  • FIG. 4 shows a one-piece slide, as has already been shown in a similar form in FIG. 1.
  • the slide does not have a uniform cavity, but instead has a material structure provided with pores 30 on the inside.
  • this porous material structure is shown schematically by a section through the slide.
  • the slide walls 3, 7 have a dense plastic structure, while inside the pores 30 form a light structure which is, however, firmly connected to one another by the pore walls and is therefore highly rigid.
  • the introduction of a gas generator or the injection of gas or the injection of a liquid which evaporates is preferably introduced in the center of the plastic injection mold, as in the previously described embodiments, so that the pore formation can spread evenly from the center of the slide to the edges. This method does not leave an injection opening, since after the gas or liquid injection has been completed, the outer skin of the plastic wing is closed by the formation of pores from the inside.
  • FIG. 5 shows, analogously to FIG. 2, a slide 1 with firmly connected caps.
  • the difference from FIG. 1 again consists in the fact that this is a slide with a foamed-out material structure. All other explanations can be found in the description of FIG. 2.
  • FIG. 6 shows, analogously to FIG. 3, a slide with attached caps, the slide in FIG. 6 again showing a material structure produced by foaming. All other features of the slide in FIG. 6 correspond to the description of the slide in FIG. 3.
  • a slide 30 is shown in FIG. 7, which has a base body 32, preferably made of high-strength thermoset, which is overmolded at the ends and possibly also on the sides with a wear-resistant thermoset 34.
  • the advantage of a thermoset wing is that better tolerances are maintained due to the significantly lower shrinkage during injection molding compared to thermoplastics can and thus additional processing can be omitted.
  • the expensive cap material made of thermoplastic materials used in the prior art is replaced here according to the invention by an inexpensive thermoset material which is designed as a wear-optimized material for the surfaces subject to wear. Good crosslinking of the two materials during spraying enables an inexpensive, wear-resistant wing with high mechanical strength to be achieved.
  • the slide in FIG. 7 has a plurality of cavities 36, which serve to lighten the weight and promote a more uniform curing process of the thermosetting plastic.
  • the slide 30 has two through openings 38, which serve to equalize the pressure between the two long sides of the wing.
  • a slide 40 is shown in FIG. 8, which is also preferably made of a high-strength thermoset material.
  • the slide is not completely surrounded by a second, wear-resistant thermoset body, but has two slide caps 42, which can be made of a wear-resistant thermoset and are fastened to the base body 40, for example, by clipping or similar fastening methods, as previously described.
  • the caps cover the entire wing width in area 44, but then become narrower in area 46 and then taper in area 48.
  • the base body 40 has tapered sections 50 at its ends, which can accommodate the caps 42 accordingly.
  • the base body again has cavities 36 and through openings 38.
  • FIG. 9 A further slide 52 is shown in FIG. 9, which differs from the previously described slide by a somewhat different cap design.
  • the caps 5A have openings 56 into which strips 58 attached to the slide 52 can snap.
  • a certain axial play in the longitudinal direction of the slide can be provided between the strips 58 and the openings 56 in order to be able to maintain appropriate sealing tolerances within the vacuum pump.
  • the caps 54 are thus fastened on the slide base body 52 with axial play and thus axially movable.
  • Figure 10 has a further design example for the slide body and the caps.
  • the slide main body 60 has an indentation 62, in which hook-shaped configurations 66 of the cap 64 engage. In this design example, the cap can be pushed laterally over the slide main body 60 and is secured against lateral displacement after the entire wing has been introduced into the pump.
  • FIG. 11 shows a variant of the design from FIG. 10, the indentation 72 of the slide main body having no axial longitudinal extent and thus being connected to the cap 76 essentially axially without play, whereas the illustration in FIG. 10 between the cap 64 and the main body 60 is clear recognizable axial play allows.
  • the game is chosen so large that gap compensation using centrifugal force is retained.
  • the invention thus leads to a plastic slide valve or vane for vane pumps, in particular vane vacuum pumps, with one or more vanes, which have a high stability and a low weight. They are inexpensive to manufacture with high manufacturing accuracy.
  • the slide or slides is / are used in pumps for conveying preferably gaseous media.
  • the pumps are either fluid lubricated (e.g. with oil, water or similar) or run dry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

L'invention concerne des pompes à vide dotées de palettes ou d'ailettes en plastique, notamment pour un système de servofrein de véhicule à moteur.
PCT/DE2004/000294 2003-02-20 2004-02-18 Pompe a vide WO2004074687A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112004000073T DE112004000073D2 (de) 2004-02-18 2004-02-18 Vakuumpumpe

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2003107040 DE10307040A1 (de) 2003-02-20 2003-02-20 Vakuumpumpe
DE10307040.0 2003-02-20
DE10354722 2003-11-22
DE10354722.3 2003-11-22

Publications (2)

Publication Number Publication Date
WO2004074687A2 true WO2004074687A2 (fr) 2004-09-02
WO2004074687A3 WO2004074687A3 (fr) 2004-11-11

Family

ID=32909526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/000294 WO2004074687A2 (fr) 2003-02-20 2004-02-18 Pompe a vide

Country Status (1)

Country Link
WO (1) WO2004074687A2 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007042134A1 (fr) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Pompe a rotor et ailette pour pompe a rotor
WO2007042135A1 (fr) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Pompe a rotor
WO2007054162A1 (fr) * 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Pompe a rotor
WO2007062762A1 (fr) * 2005-11-30 2007-06-07 Joma-Hydromechanic Gmbh Pompe a vide
DE102008057227A1 (de) 2008-11-04 2010-05-12 Joma-Hydromechanic Gmbh Flügel für eine Einflügelvakuumpumpe
WO2010145633A2 (fr) 2009-06-17 2010-12-23 Ixetic Hückeswagen Gmbh Pompe à vide
WO2010145634A2 (fr) 2009-06-17 2010-12-23 Ixetic Hückeswagen Gmbh Pompe à vide
WO2011134448A2 (fr) 2010-04-26 2011-11-03 Ixetic Hückeswagen Gmbh Pompe à vide
WO2014075658A2 (fr) 2012-11-19 2014-05-22 Ixetic Bad Homburg Gmbh Pompe à vide de véhicule automobile
WO2014075660A2 (fr) 2012-11-19 2014-05-22 Ixetic Bad Homburg Gmbh Pompe à vide de véhicule automobile
WO2014086338A1 (fr) 2012-12-04 2014-06-12 Ixetic Bad Homburg Gmbh Pompe à vide de véhicule automobile entraînée par un moteur électrique et arbre d'entraînement destiné à une pompe à vide de véhicule automobile
WO2014094731A2 (fr) 2012-12-18 2014-06-26 Ixetic Bad Homburg Gmbh Surface d'arrêt de boitier axiale
WO2014156880A1 (fr) * 2013-03-28 2014-10-02 大豊工業株式会社 Palette de pompe à palettes
JP2015052286A (ja) * 2013-09-06 2015-03-19 三輪精機株式会社 ベーンポンプ
CN105114308A (zh) * 2015-09-11 2015-12-02 裕克施乐塑料制品（太仓）有限公司 一种新型真空泵叶片及真空泵
DE102015213098A1 (de) * 2015-07-13 2017-01-19 Joma-Polytec Gmbh Flügel für eine Flügelzellenpumpe und Flügelzellenpumpe
CN106704196A (zh) * 2017-01-23 2017-05-24 世特科汽车工程产品（常州）有限公司 一种真空泵叶片、制造方法及设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818024A (en) * 1953-03-12 1957-12-31 Herschel Alf Vanes for rotary pumps and the like
DE10008321A1 (de) * 2000-02-17 2001-08-23 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung eines Kunststoff-Formhohlteiles
DE10046697A1 (de) * 2000-09-21 2002-04-11 Bosch Gmbh Robert Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60237190A (ja) * 1984-05-09 1985-11-26 Hitachi Ltd ロ−タリ−形圧縮機
JP2577004B2 (ja) * 1987-04-02 1997-01-29 日立金属株式会社 ベーン

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818024A (en) * 1953-03-12 1957-12-31 Herschel Alf Vanes for rotary pumps and the like
DE10008321A1 (de) * 2000-02-17 2001-08-23 Volkswagen Ag Verfahren und Vorrichtung zur Herstellung eines Kunststoff-Formhohlteiles
DE10046697A1 (de) * 2000-09-21 2002-04-11 Bosch Gmbh Robert Flügel aus Kunststoff für eine Flügelzellen-Vakuumpumpe

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 010, Nr. 105 (M-471), 19. April 1986 (1986-04-19) -& JP 60 237190 A (HITACHI SEISAKUSHO KK), 26. November 1985 (1985-11-26) *
PATENT ABSTRACTS OF JAPAN Bd. 013, Nr. 217 (M-828), 22. Mai 1989 (1989-05-22) -& JP 01 035091 A (HITACHI METALS LTD; OTHERS: 01), 6. Februar 1989 (1989-02-06) *

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007042134A1 (fr) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Pompe a rotor et ailette pour pompe a rotor
WO2007042135A1 (fr) * 2005-10-13 2007-04-19 Joma-Hydromechanic Gmbh Pompe a rotor
WO2007054162A1 (fr) * 2005-11-14 2007-05-18 Joma-Hydromechanic Gmbh Pompe a rotor
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CN106351839A (zh) * 2015-07-13 2017-01-25 悦马塑料技术有限公司 用于叶片泵的叶片及叶片泵
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