EP2462351B1 - Pompe à liquide - Google Patents

Pompe à liquide Download PDF

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Publication number
EP2462351B1
EP2462351B1 EP10730450.3A EP10730450A EP2462351B1 EP 2462351 B1 EP2462351 B1 EP 2462351B1 EP 10730450 A EP10730450 A EP 10730450A EP 2462351 B1 EP2462351 B1 EP 2462351B1
Authority
EP
European Patent Office
Prior art keywords
impeller
plain bearing
bearing bush
fluid pump
basic material
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
EP10730450.3A
Other languages
German (de)
English (en)
Other versions
EP2462351A2 (fr
EP2462351B2 (fr
Inventor
Bernd Hein
Christoph Heier
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2462351A2 publication Critical patent/EP2462351A2/fr
Publication of EP2462351B1 publication Critical patent/EP2462351B1/fr
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Publication of EP2462351B2 publication Critical patent/EP2462351B2/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/0462—Bearing cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—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
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/509—Self lubricating materials; Solid lubricants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/50—Intrinsic material properties or characteristics
    • F05D2300/512—Hydrophobic, i.e. being or having non-wettable properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
    • F05D2300/603—Composites; e.g. fibre-reinforced

Definitions

  • the invention relates to a liquid pump and a method for forming a liquid pump, in particular water pump, with a bearing pin on which an impeller is rotatably mounted with a plain bearing bush.
  • a liquid pump in particular water pump
  • Such a pump is eg from the GB 979009 known.
  • Liquid pumps in particular water pumps, are used, for example, in motor vehicles to ensure coolant circulation.
  • Various types of liquid pumps are used.
  • Liquid pumps are usually designed in two parts and comprise a pump region and an engine region.
  • an impeller can serve as an impeller for the liquid circulation and for driving the liquid pump.
  • the impeller is usually formed of a Plastoferrit to have magnetic properties.
  • the impeller is connected to a plain bearing bush, which is formed for example of a synthetic resin bonded press coal. As a result, the impeller can be used as a rotor which rests with the plain bearing bushing on a bearing pin and rotates about the bearing pin.
  • a sliding bearing which consists of a sintered plastic material, in the pores at least partially a solid or liquid lubricant such.
  • B. graphite or oil is provided
  • the object of the invention is to provide an improved liquid pump.
  • An advantage of the liquid pump according to the invention is that the Flugirad and the plain bearing bush are formed of a same base material in one piece or in several parts and thus have the same material properties.
  • the impeller and the slide bearing bushing have an at least similar coefficient of thermal expansion, so that cracking due to internal stresses in the components can be reduced or avoided.
  • the manufacturing time and the manufacturing cost can be reduced by the impeller and the plain bearing bush are also made in one piece in an injection molding process.
  • another material of the plain bearing bush comprises wax and / or carbon powder.
  • the base material comprises polyamides, polyphthalamides, partially crystalline, partially aromatic polyamides or polyphenylsulfides. These materials have a necessary hydrolysis resistance to the pumped medium, so that the material does not dissolve in use.
  • the impeller comprises a magnetic material.
  • the magnetic material preferably comprises ferrite powder embedded in the base material. Due to the magnetic powder, the impeller has magnetic properties, so that the impeller can be used as a rotor of the liquid pump and thus serves for the transmission of the magnetic forces or driving forces.
  • the bearing pin is made of stainless steel. As a result, the bearing pin is corrosion resistant.
  • a flushing channel in the form of a groove in the plain bearing bush is arranged.
  • a hydrostatic and / or hydrodynamic sliding bearing can be realized.
  • the fluid is used as a lubricant for the sliding bearing.
  • a labyrinth seal is arranged on the liquid pump. Due to the labyrinth seal can prevent impurities that arise in the pump area of the liquid pump, get into the engine area of the liquid pump.
  • FIG. 1 is a schematic partial view of a liquid pump in the form of a water pump 1 is shown.
  • the water pump 1 has an engine region 18 and a pump region, not shown.
  • the motor region 18 of the water pump 1 comprises a pot-shaped housing 10.
  • the pot-shaped housing 10 is preferably made of a thermoplastic material, such as polyphthalamide or polyphenylene sulfide, in an injection molding process Alternatively, the pot-shaped housing 10 can be made of any other non-magnetic material. Since the water pump 1 is electrically driven, a rotor 19 is formed within the cup-shaped housing 10 and a stator, which is not shown in the illustration, is formed outside the cup-shaped housing 10. Furthermore, the cup-shaped housing 10 comprises a knob 15, a labyrinth seal 14 and a bearing pin thirteenth
  • the nub 15 is arranged as an assembly aid on the cup-shaped housing 10 and is used for easy positioning of the motor region 18 at the pump region of the water pump 1.
  • the labyrinth seal 14 is designed to seal off the motor region 18 from the pump region of the water pump 1 as a cutout on the cup-shaped housing 10. Since the water pump 1 is used in the motor vehicle, the internal combustion engines are produced in an injection molding process, residues from the molding sand can get into the fluid.
  • the molding sand may have residual magnetism that can be attracted to the magnetically executed rotor 19.
  • the labyrinth seal 14 can be prevented that the medium, which may have a small amount of molding sand, in the narrow gap between the cup-shaped housing 10 and the rotor 19 passes, which can lead to a blocking of the rotor 19.
  • the pumped medium in the water pump 1 can be a water / glycol mixture.
  • the bearing pin 13 is made of stainless steel, for example. Before the injection molding of the cup-shaped housing 10 of the bearing pin is positioned centrally in the injection mold and then encapsulated with the thermoplastic material of the cup-shaped housing 10. As a result, the bearing pin 13 is firmly fixed in the cup-shaped housing 10 of the water pump 1.
  • an impeller 11 is rotatably mounted with a plain bearing bushing 12 Further, the impeller 11 is rotatably mounted with the plain bearing bush 12 by means of the bearing pin 13 in a recess 20 on the cup-shaped housing 10.
  • the impeller 11 and the plain bearing bush 12 are formed of a same base material in one piece or in several parts.
  • the base material preferably comprises polyamides (PA6), polyphthalamides (PPA), partially crystalline, partially aromatic polyamides (PA6T / 6I) or polyphenylsulfides (PPS).
  • PA6 polyamides
  • PPA polyphthalamides
  • PA6T / 6I partially crystalline, partially aromatic polyamides
  • PPS polyphenylsulfides
  • the base material has a hydrolysis resistance to the pumped medium, so that the material is not in use dissolves.
  • other materials resistant to hydrolysis may be used as the base material for the impeller 11 and the plain bearing bush 12.
  • the impeller 11 comprises a magnetic material, preferably ferrite powder.
  • the magnetic material is introduced in the entire region of the impeller 11.
  • other magnetic particles or magnetic materials may be used.
  • the impeller 11 has magnetic properties due to the magnetic powder, so that the impeller 11 can be used as the rotor 19 of the water pump 1.
  • the plain bearing bush 12 has a further material which increases the sliding property of the plain bearing bush 12 on the bearing pin 13.
  • the further material is embedded in the region of a sliding surface in the base material, with which the slide bearing bushing 12 is rotatably mounted on the bearing pin 13.
  • a further material for example wax and / or carbon powder can be used.
  • other materials can be used, which are suitable.
  • the impeller 11 and the plain bearing bush 12 are manufactured in an injection molding process.
  • the impeller 11 and the plain bearing bush 12 can be produced in a two-stage injection molding process.
  • a first injection molding process the plain bearing bush 12 is manufactured.
  • a further material is mixed into the base material, so that a granulate for the injection molding process is formed.
  • the granules are placed in a funnel of an injection molding machine, wherein the granules are drawn from the hopper into a flight, divided and sheared.
  • the resulting friction heat in conjunction with the heat supplied by a heated cylinder, provides a relatively homogeneous melt.
  • the melt is injected under high pressure into the injection mold.
  • the impeller 11 Before the melt of the plain bearing bush 12 completely solidifies, the impeller 11 is injected in a second injection molding process and fused with the plain bearing bush 12, so that a one-piece component is formed.
  • the base material is mixed with a magnetic material.
  • more or less of the additional material or magnetic material can be mixed into the base material.
  • you can the injection molding process also be carried out in a single-stage injection molding process or in another sequence.
  • the narrow sliding fit 16 has a thickness of up to 0.08 mm over the entire sliding surface, thereby no contamination between the plain bearing bush 12 and enter the bearing pin 13. Furthermore, due to the tight sliding fit 16, increased wear due to the penetration of molding sand while at the same time lubrication due to wetting with the conveying medium is avoided.
  • a flushing channel 17 may be arranged.
  • the flushing channel 17 is arranged in the form of a groove in the plain bearing bush 12, so that funding or cooling water can flow into the plain bearing.
  • a hydrostatic and / or hydrodynamic sliding bearing can be realized, wherein the conveying medium can be used as a lubricant for the sliding bearing. This has the advantage above all of a relatively pure pumped medium.
  • the impeller 11 can be mounted with the plain bearing bush 12 floating on the bearing pin 13. As a result, the friction in storage is significantly reduced.
  • the invention is illustrated using the example of a water pump 1. However, the invention can also be used for other fluid pumps with another fluid. It is advantageous that the impeller 11 and the plain bearing bush 12 are formed from a same base material in one piece or in several parts. As a result, the impeller 11 and the plain bearing bush 12 have approximately the same material properties, so that cracking due to internal stresses in the components can be avoided. Further, the impeller 11 and the plain bearing bush 12 are formed of a hydrolysis resistant material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (13)

  1. Pompe à liquide, en particulier pompe à eau (1), avec un axe de palier (13), sur lequel une roue à aubes (11) est montée de façon rotative avec un coussinet de palier lisse (12), caractérisée en ce que la roue à aubes (11) et le coussinet de palier lisse (12) sont réalisés en une seule pièce ou en plusieurs parties en au moins un même matériau de base, dans laquelle un autre matériau, qui améliore les propriétés de glissement du coussinet de palier lisse (12), est mélangé au matériau de base du coussinet de palier lisse (12) sur l'axe de palier (13), et dans laquelle un matériau magnétique est mélangé au matériau de base de la roue à aubes (11).
  2. Pompe à liquide selon la revendication 1, caractérisée en ce que l'autre matériau comprend de la cire et/ou de la poudre de charbon.
  3. Pompe à liquide selon la revendication 1, caractérisée en ce que le matériau de base présente des polyamides, des polyphtalamides, des polyamides ou des polyphénylsulfures partiellement cristallins, partiellement aromatiques.
  4. Pompe à liquide selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la roue à aubes (11) présente un matériau magnétique, de préférence de la poudre de ferrite.
  5. Pompe à liquide selon la revendication 1, caractérisée en ce que l'axe de palier (13) est réalisé en acier allié.
  6. Pompe à liquide selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'un canal de rinçage (17) sous la forme d'une rainure est disposé dans le coussinet de palier lisse (12).
  7. Pompe à liquide selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'il est prévu entre l'axe de palier (13) et le coussinet de palier lisse (12) une face de glissement un ajustement glissant, dans laquelle l'ajustement glissant présente une épaisseur jusqu'à 0,08 mm sur toute la face de glissement.
  8. Pompe à liquide selon l'une quelconque des revendications 1 à 7, caractérisée en ce qu'un joint à labyrinthe (14) est disposé sur la pompe à liquide (1).
  9. Procédé de formation d'un rotor d'une pompe à liquide, en particulier d'une pompe à eau (1), avec un axe de palier (13), sur lequel une roue à aubes (11) est montée de façon rotative avec un coussinet de palier lisse (12), caractérisé en ce que l'on réalise la roue à aubes (11) et le coussinet de palier lisse (12) en une seule pièce ou en plusieurs parties en un même matériau de base, dans lequel on mélange un autre matériau, qui améliore les propriétés de glissement du coussinet de palier lisse (12) sur l'axe de palier (13), au matériau de base du coussinet de palier lisse (12), et dans lequel on mélange un matériau magnétique au matériau de base de la roue à aubes (11).
  10. Procédé selon la revendication 9, caractérisé en ce que l'on fabrique la roue à aubes (11) et le coussinet de palier lisse (12) par un procédé de coulée par injection.
  11. Procédé selon la revendication 9, caractérisé en ce que l'on utilise comme autre matériau de la cire et/ou de la poudre de charbon.
  12. Procédé selon la revendication 9, caractérisé en ce que l'on utilise comme matériau de base des polyamides, des polyamides ou des polyphénylsulfures partiellement cristallins partiellement aromatiques.
  13. Procédé selon la revendication 9, caractérisé en ce que l'on incorpore dans le matériau de base de la roue à aubes (11) un matériau magnétique, de préférence de la poudre de ferrite.
EP10730450.3A 2009-08-06 2010-07-05 Pompe à liquide Active EP2462351B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009028310A DE102009028310A1 (de) 2009-08-06 2009-08-06 Flüssigkeitspumpe
PCT/EP2010/059522 WO2011015413A2 (fr) 2009-08-06 2010-07-05 Pompe à liquide

Publications (3)

Publication Number Publication Date
EP2462351A2 EP2462351A2 (fr) 2012-06-13
EP2462351B1 true EP2462351B1 (fr) 2017-06-07
EP2462351B2 EP2462351B2 (fr) 2020-04-29

Family

ID=43429968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10730450.3A Active EP2462351B2 (fr) 2009-08-06 2010-07-05 Pompe à liquide

Country Status (8)

Country Link
US (1) US8967970B2 (fr)
EP (1) EP2462351B2 (fr)
JP (1) JP5787887B2 (fr)
CN (1) CN102472291A (fr)
DE (1) DE102009028310A1 (fr)
ES (1) ES2639367T3 (fr)
IN (1) IN2012DN00472A (fr)
WO (1) WO2011015413A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11353063B2 (en) * 2018-05-23 2022-06-07 Diamet Corporation Sintered bearing

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Publication number Priority date Publication date Assignee Title
DE102013004339A1 (de) * 2013-03-14 2014-09-18 Wilo Se Pumpenaggregat mit einer einstückigen Lagereinheit
CN104747458A (zh) * 2013-12-27 2015-07-01 博西华电器（江苏）有限公司 排放液体的泵及具有该泵的家用电器
CN104265679A (zh) * 2014-08-12 2015-01-07 苏州通力电气有限公司 一种水泵叶轮
CN105715559A (zh) * 2014-12-05 2016-06-29 杭州三花研究院有限公司 电子泵
EP3109915B1 (fr) 2015-06-23 2021-07-21 Novaled GmbH Dispositif électroluminescent organique comprenant une matrice polaire et un métal dopant
CN106989049A (zh) * 2017-04-05 2017-07-28 横店集团东磁股份有限公司 一种冷却磁性水泵用的石墨轴承
DE102018204499A1 (de) 2018-03-23 2019-09-26 Robert Bosch Gmbh Flüssigkeitspumpe, insbesondere Kühlmittelpumpe
DE102018204503A1 (de) 2018-03-23 2019-09-26 Robert Bosch Gmbh Flüssigkeitspumpe
CN110319048A (zh) * 2019-07-09 2019-10-11 横店集团东磁股份有限公司 一种高强度汽车用水泵转子及其制造方法

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB979009A (en) 1962-10-18 1965-01-01 Hevent Developments Ltd Improvements in or relating to glandless motor driven circulating pumps
US4512724A (en) 1983-03-17 1985-04-23 Metaframe, Inc. Electric pump for use in filtering system of a tropical fish tank or the like
US4722661A (en) 1985-10-09 1988-02-02 Ngk Insulators, Ltd. Magnetic-drive centrifugal pump
DE3706970A1 (de) 1987-03-04 1988-09-15 Klifa Gmbh & Co Pumpenfluegelrad fuer eine wasserpumpe und verfahren zu seiner herstellung
JPH02252998A (ja) 1989-03-27 1990-10-11 Kunimori Kagaku:Kk インペラの製造方法
EP0416237A1 (fr) 1989-07-08 1991-03-13 Alcatel SEL Aktiengesellschaft Pompe pour liquides
DE9214418U1 (de) 1992-10-24 1994-05-05 Papst Motoren Gmbh & Co Kg Gleitlager
US6264440B1 (en) 1998-10-29 2001-07-24 Innovative Mag-Drive, L.L.C. Centrifugal pump having an axial thrust balancing system
US20010033800A1 (en) 2000-04-25 2001-10-25 Aisan Kogyo Kabushiki Kaisha Magnetic coupling pump
JP2002155884A (ja) 2000-11-16 2002-05-31 Yamada Seisakusho Co Ltd マグネットポンプのインペラ支持構造
US6443710B1 (en) 1999-08-10 2002-09-03 Iwaki Co., Ltd. Magnetic pump
US20050281498A1 (en) 2004-06-22 2005-12-22 Takumi Hayashi Slide bearing for cooling water circulation pump in fuel cell
JP2006316652A (ja) 2005-05-11 2006-11-24 Asmo Co Ltd 流体ポンプ
US20070177993A1 (en) 2006-01-31 2007-08-02 Asian Kogyo Kabushiki Kaisha Electric pump
JP2007205246A (ja) 2006-02-01 2007-08-16 Toyota Motor Corp ウォータポンプおよびハイブリッド車両
JP2007211691A (ja) 2006-02-09 2007-08-23 Toyota Motor Corp ウォータポンプ
DE102006021244A1 (de) 2006-04-28 2007-11-08 Bühler Motor GmbH Permanentmagnetrotor

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB979009A (en) 1962-10-18 1965-01-01 Hevent Developments Ltd Improvements in or relating to glandless motor driven circulating pumps
US4512724A (en) 1983-03-17 1985-04-23 Metaframe, Inc. Electric pump for use in filtering system of a tropical fish tank or the like
US4722661A (en) 1985-10-09 1988-02-02 Ngk Insulators, Ltd. Magnetic-drive centrifugal pump
DE3706970A1 (de) 1987-03-04 1988-09-15 Klifa Gmbh & Co Pumpenfluegelrad fuer eine wasserpumpe und verfahren zu seiner herstellung
JPH02252998A (ja) 1989-03-27 1990-10-11 Kunimori Kagaku:Kk インペラの製造方法
EP0416237A1 (fr) 1989-07-08 1991-03-13 Alcatel SEL Aktiengesellschaft Pompe pour liquides
DE9214418U1 (de) 1992-10-24 1994-05-05 Papst Motoren Gmbh & Co Kg Gleitlager
US6264440B1 (en) 1998-10-29 2001-07-24 Innovative Mag-Drive, L.L.C. Centrifugal pump having an axial thrust balancing system
US6443710B1 (en) 1999-08-10 2002-09-03 Iwaki Co., Ltd. Magnetic pump
US20010033800A1 (en) 2000-04-25 2001-10-25 Aisan Kogyo Kabushiki Kaisha Magnetic coupling pump
JP2002155884A (ja) 2000-11-16 2002-05-31 Yamada Seisakusho Co Ltd マグネットポンプのインペラ支持構造
US20050281498A1 (en) 2004-06-22 2005-12-22 Takumi Hayashi Slide bearing for cooling water circulation pump in fuel cell
JP2006009819A (ja) 2004-06-22 2006-01-12 Ntn Corp 燃料電池の冷却水循環ポンプ用滑り軸受
JP2006316652A (ja) 2005-05-11 2006-11-24 Asmo Co Ltd 流体ポンプ
US20070177993A1 (en) 2006-01-31 2007-08-02 Asian Kogyo Kabushiki Kaisha Electric pump
JP2007205190A (ja) 2006-01-31 2007-08-16 Aisan Ind Co Ltd 電動ポンプ
JP2007205246A (ja) 2006-02-01 2007-08-16 Toyota Motor Corp ウォータポンプおよびハイブリッド車両
JP2007211691A (ja) 2006-02-09 2007-08-23 Toyota Motor Corp ウォータポンプ
DE102006021244A1 (de) 2006-04-28 2007-11-08 Bühler Motor GmbH Permanentmagnetrotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11353063B2 (en) * 2018-05-23 2022-06-07 Diamet Corporation Sintered bearing

Also Published As

Publication number Publication date
JP5787887B2 (ja) 2015-09-30
ES2639367T3 (es) 2017-10-26
WO2011015413A3 (fr) 2011-03-31
DE102009028310A1 (de) 2011-02-10
WO2011015413A2 (fr) 2011-02-10
IN2012DN00472A (fr) 2015-06-05
EP2462351A2 (fr) 2012-06-13
EP2462351B2 (fr) 2020-04-29
US20120195754A1 (en) 2012-08-02
US8967970B2 (en) 2015-03-03
CN102472291A (zh) 2012-05-23
JP2013501188A (ja) 2013-01-10

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