WO2005078279A1 - 電動ポンプユニット - Google Patents
電動ポンプユニット Download PDFInfo
- Publication number
- WO2005078279A1 WO2005078279A1 PCT/JP2005/002252 JP2005002252W WO2005078279A1 WO 2005078279 A1 WO2005078279 A1 WO 2005078279A1 JP 2005002252 W JP2005002252 W JP 2005002252W WO 2005078279 A1 WO2005078279 A1 WO 2005078279A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pump unit
- rotor
- motor
- core
- electric pump
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical group 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
-
- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
Definitions
- the present invention relates to a compact electric pump unit in which a pump chamber for circulating liquid and an electric motor chamber are arranged adjacent to each other, for example, a water pump or an oil pump mounted on a vehicle.
- this type of electric pump has a structure in which the pump and the motor are formed separately, and the drive can be transmitted between the rotation axis of the pump and the rotation axis of the motor using a joint such as an Oldham joint.
- a joint such as an Oldham joint.
- the present applicants have proposed a small and inexpensive electric pump unit by using a single shaft for both the rotating shaft of the motor and the rotating shaft of the pump (Japanese Patent Application Laid-Open No. 2002-31065). reference).
- FIG. 6 is a schematic cross-sectional view showing the structure of a conventional electric pump unit
- FIG. 7 is a cross-sectional view taken along line CC of FIG.
- This example shows a trochoid pump used as a hydraulic pump for an automobile transmission.
- An electric motor chamber (motor section 12) and a pump chamber (pump section 13) are provided inside a housing. They are formed adjacent to each other.
- a main shaft 14 which is a drive shaft rotated by the motor unit 12 and also serves as a rotation shaft of the pump unit 13 is disposed in the housing, and both ends in the axial direction are provided in the housing. It is rotatably supported by the bearings 31 and 32.
- the housing is made of, for example, an aluminum alloy, and has a motor housing lib as a cover for the motor unit 12, a pump housing 11a mainly storing the pump unit 13, and a pump for sealing an opening of the pump housing 11a.
- the pumpno and the housing 11a have an inner wall lid for separating the pump unit 13 and the motor unit 12 and have a through hole llh at a substantially radial center thereof for allowing the main shaft 14 to pass therethrough.
- reference numeral 15 denotes a rotor core of the motor
- 16 denotes a magnet (permanent magnet)
- 17 denotes a protective ring
- 18 denotes a stator core of the motor
- 18a denotes a tooth portion of the stator core
- 19 denotes a coinole
- 21 denotes an outer rotor of a trochoid pump
- 33 is an oil seal.
- the motor of the electric pump unit as described above generally includes a surface magnet (Surface Magnet).
- a brushless motor with a permanent magnet (hereinafter abbreviated as SPM) structure is used.
- FIG. 8 is an exploded perspective view showing the configuration of the rotor section of the motor in this example.
- the rotor portion of the SPM structure motor has a rotor core 15 formed by punching and laminating an electro-magnetic steel sheet coated with a non-magnetic material, and a cylindrical magnet (disposed around the rotor core 15).
- a ring 16) is mainly formed, and a protective ring 17 made of a non-magnetic material such as stainless steel for protecting the magnet 16 exposed on the surface is fitted around these.
- Patent Document 1 JP-A-2002-31065
- auxiliary equipment mounted on an automobile a more compact product is required due to the reduced space in the engine room.
- these auxiliary equipments are always required to be lightweight for energy saving (improve fuel efficiency) and to reduce costs for improving competitiveness.
- energy saving improve fuel efficiency
- costs for improving competitiveness There is a demand for lighter, lower cost products that have the same functions and reliability.
- the present invention has been made to address the above-described problem, and has a small number of parts.
- Another object of the present invention is to provide a small and inexpensive electric pump unit.
- the invention according to claim 1 is configured such that fluid is sucked into one end of a rotating shaft disposed through a hole provided in an inner wall for partitioning the inside of a housing.
- 'A pump portion for discharging is formed, and a rotor serving as a permanent magnet and a rotor core fixed to the outer periphery of the rotating shaft are arranged on the other end side of the rotating shaft, and the rotor is arranged around the rotor.
- a permanent magnet constituting the rotor is embedded in the rotor core.
- the present invention provides an electric pump unit in which a single shaft serves as both a rotation axis of a pump and a rotation axis of a motor, and has an embedded magnet (Interior Permanent Magnet: hereinafter, abbreviated as IPM) structure in the motor.
- IPM Interior Permanent Magnet
- the motor of the electric pump unit which has conventionally been the SPM structure, has the IPM structure, thereby eliminating the need for a protection ring for protecting the permanent magnet. Therefore, the electric pump unit of the present invention can achieve a reduction in the number of parts and a lighter weight than conventional products.
- a bearing clearance is provided between an outer diameter surface of the rotor core and an inner diameter surface of the stator core opposed thereto, and the rotation of the rotating shaft is supported by the stator core. If the configuration is adopted, it is possible to dispose the conventional rolling bearing by arranging it to support the rotating shaft, and to omit the rolling bearing. By omitting these bearings, not only the cost of the electric pump unit can be reduced, but also the dimension in the unit axial direction can be shortened, and the electric pump unit can be made more compact.
- annular stator core having an annular core having a cylindrical inner peripheral surface and a tooth portion protruding in the radial direction of the outer peripheral surface force of the annular core is used.
- a stator core having a cylindrical inner peripheral surface that is not interrupted in the circumferential direction is used. This facilitates the formation of an oil film between the inner peripheral surface of the stator core and the outer peripheral surface of the rotor core that is in sliding contact with the stator core.
- the electric pump unit of the present invention has a solid lubricating film made of a non-magnetic material formed on at least one of the outer diameter surface of the rotor core and the inner diameter surface of the stator core opposed thereto. (Claim 4).
- the non-magnetic solid lubricating coating can reduce friction between the rotor core and the stator core without impairing the efficiency of the motor.
- the permanent magnet used for the motor (rotor portion) of the electric pump unit of the present invention a rare earth magnet is preferable, and the rotor core is preferably formed by laminating electromagnetic steel sheets. Section 5). With this configuration, the motor can be driven at a high speed and a high efficiency.
- FIG. 1 is a schematic sectional view showing a structure of an electric pump unit according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view taken along line AA of FIG. 1.
- FIG. 3 is an exploded perspective view showing a configuration of a rotor portion of a motor in the electric pump unit according to the first embodiment of the present invention.
- FIG. 4 is a schematic sectional view showing a structure of an electric pump unit according to a second embodiment of the present invention.
- FIG. 5 is a sectional view taken along line BB of FIG. 4.
- FIG. 6 is a schematic sectional view showing the structure of a conventional electric pump unit.
- FIG. 7 is a sectional view taken along line CC of FIG. 6.
- FIG. 8 is an exploded perspective view showing a configuration of a rotor portion of a motor in a conventional electric pump unit.
- FIG. 1 is a schematic sectional view showing the structure of the electric pump unit according to the first embodiment of the present invention
- FIG. 2 is a sectional view taken along line AA of FIG.
- FIG. 3 is an exploded perspective view showing the configuration of the rotor unit of the motor according to the present embodiment.
- the electric pump unit according to the present embodiment also shows a trochoid pump used as a hydraulic pump for an automobile transmission, and an electric motor chamber (motor section 2) and a pump chamber (pump) are provided inside a housing. Part 3) and force are formed adjacent to each other.
- a main shaft 4 which is a drive shaft rotated by the motor unit 2 and also a rotation shaft of the pump unit 3 is arranged.
- the housing la is made of, for example, an aluminum alloy, and a motor plate lb and a pump plate lc that seal the respective openings are arranged in the motor unit 2 side opening and the pump unit 3 side opening.
- the housing la is provided with an inner wall Id for separating the pump section 3 and the motor section 2, and a through hole 1 h for passing the main shaft 4 is formed substantially at the center in the radial direction. I have.
- reference numeral 5 is a rotor core of the motor
- 6 is a magnet (permanent magnet)
- 7 is a stator core of the motor
- 7a is a tooth portion of the stator core
- 9 is a coil
- 21 is a rotor of a trochoid pump
- 22 is an inner rotor of a trochoid pump. It is.
- the rotor core 5 is formed by laminating electromagnetic steel plates having holes 5a, 5a,. That is, the magnet 6 is embedded inside the rotor core 5. Further, the outer diameter of the rotor core 5 and the inner diameter of the stator core 7 are formed to have a slight clearance, and are configured as a slide bearing that supports the rotation of the main shaft 4.
- this electric pump unit does not need to arrange a protective ring around the rotor core 5 unlike a conventional SPM structure motor.
- the rotation of the main shaft 4 is supported by the inner diameter surface of the stator core 7, it is possible to omit a rolling bearing conventionally arranged to support the rotation shaft. Therefore, the book
- the electric pump unit according to the embodiment can be a lightweight, compact and inexpensive electric pump unit as compared with a conventional product.
- FIG. 4 is a schematic sectional view showing the structure of the electric pump unit according to the second embodiment of the present invention
- FIG. 5 is a sectional view taken along line BB of FIG. Note that components having the same functions as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.
- the electric pump unit according to the present embodiment differs from the first embodiment in that, as shown in FIG. 5, an annular core 8a having a cylindrical inner peripheral surface is used as a stator core of a motor unit 2, An outer circumferential surface of the core 8a is characterized in that an annular stator core 8 including a tooth portion 8b projecting in the radial direction and a cylindrical member 8c supporting the tooth portion 8b is used.
- the annular stator core 8 has a cylindrical inner peripheral surface that is not interrupted in the circumferential direction, it is easy to form an oil film between the inner peripheral surface of the stator core 8 and the outer peripheral surface of the rotor core 5 that is in sliding contact therewith. Become. Moreover, since the inner peripheral surface of the stator core 8 is cylindrical, it is possible to finish the inner peripheral surface with high precision by machining (for example, grinding).
- the electric pump unit according to the present embodiment can be configured to be lightweight and compact as in the first embodiment, and of course, the friction in the sliding bearing portion is reduced, so that the electric pump unit has a long service life.
- an electric pump unit capable of coping with high rotation can be provided.
- At least one of the outer diameter surface of the rotor core 5 and the inner diameter surface of the stator core (7, 8) opposed thereto has a nonmagnetic material (for example, a fluorine-based material such as PTFE). Grease) may be formed. The friction between the rotor core and the stator core can be further reduced by the non-magnetic solid lubricating coating.
- a nonmagnetic material for example, a fluorine-based material such as PTFE.
- an oil seal, a mechanical seal, or the like for sealing the fluid circulating in the pump portion may be provided around the through hole of the housing.
- the magnet 6 used for the motor unit 2 may be a rare earth (particularly, neodymium).
- A) Magnets are preferred.
- the rotor core 5 and the stator core (7, 8) those formed by laminating electromagnetic steel sheets can be suitably used. By employing these, it becomes possible to perform high-speed rotation and high-efficiency rotation of the motor.
- the structures of the motor and the pump in the present invention are not limited to the examples in the above embodiment.
- the present invention can be applied to an electric pump having another configuration such as a pump using an impeller and a vane pump.
- the number of parts is reduced and the number of parts is reduced as compared with a conventional product that requires a protection ring for protecting the permanent magnet of the motor rotor. It is possible to achieve a stake.
- the conventional rotary pump can be arranged to support the rotary shaft, and the rolling bearing can be omitted. Can be configured.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Reciprocating Pumps (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05710203A EP1717443A4 (en) | 2004-02-16 | 2005-02-15 | MOTOR-DRIVEN PUMP UNIT |
US10/589,415 US20070182259A1 (en) | 2004-02-16 | 2005-02-15 | Electric pump unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004037869A JP4475391B2 (ja) | 2004-02-16 | 2004-02-16 | 電動ポンプユニット |
JP2004-037869 | 2004-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005078279A1 true WO2005078279A1 (ja) | 2005-08-25 |
Family
ID=34857790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/002252 WO2005078279A1 (ja) | 2004-02-16 | 2005-02-15 | 電動ポンプユニット |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070182259A1 (ja) |
EP (1) | EP1717443A4 (ja) |
JP (1) | JP4475391B2 (ja) |
KR (1) | KR20060124702A (ja) |
WO (1) | WO2005078279A1 (ja) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007318962A (ja) * | 2006-05-29 | 2007-12-06 | Jtekt Corp | 回転機 |
KR100905909B1 (ko) | 2007-07-04 | 2009-07-02 | 주식회사 캐프스 | 자동차 연료펌프용 bldc 모터의 고정자 구조 |
KR100903519B1 (ko) * | 2007-09-18 | 2009-06-19 | 주식회사 아모텍 | 영구자석 매입형 모터 및 이를 이용한 공기흡입장치 |
EP2072826B1 (de) * | 2007-12-17 | 2015-10-14 | Grundfos Management A/S | Rotor für einem Spaltrohrmotor |
CN101219648B (zh) * | 2008-01-31 | 2010-12-08 | 北京经纬恒润科技有限公司 | 车灯转向驱动装置 |
DE102008020778A1 (de) * | 2008-04-25 | 2009-11-05 | Siemens Aktiengesellschaft | Rotor für eine Synchronmaschine, Herstellungsverfahren für einen derartigen Rotor sowie Synchronmaschine mit einem derartigen Rotor |
DE102008060875B4 (de) * | 2008-10-28 | 2016-06-30 | Thomas Magnete Gmbh | Von einem Gleichstrommotor angetriebene Zahnradpumpe |
US20110062805A1 (en) * | 2009-09-17 | 2011-03-17 | Caterpillar Inc. | Switched reluctance machine with eddy current loss dampener |
US8974197B2 (en) * | 2010-02-16 | 2015-03-10 | Halla Visteon Climate Control Corporation | Compact structure for an electric compressor |
DE102011075278A1 (de) * | 2010-07-16 | 2012-02-23 | Baumüller Nürnberg GmbH | Pumpenaggregat |
JP6056149B2 (ja) * | 2011-08-31 | 2017-01-11 | 株式会社ジェイテクト | 電動ポンプユニットおよびその製造方法 |
JP2013169136A (ja) * | 2012-01-17 | 2013-08-29 | Asmo Co Ltd | 駆動装置 |
KR20140008483A (ko) * | 2012-07-10 | 2014-01-21 | 주식회사 만도 | 모터 구조체 |
JP2014054160A (ja) * | 2012-08-08 | 2014-03-20 | Jtekt Corp | 電動アクチュエータ |
JP2014173443A (ja) * | 2013-03-06 | 2014-09-22 | Asmo Co Ltd | 電動ポンプ |
JP6081824B2 (ja) * | 2013-03-06 | 2017-02-15 | アスモ株式会社 | 電動ポンプ |
JP2014173585A (ja) * | 2013-03-13 | 2014-09-22 | Hitachi Automotive Systems Ltd | 電動流体ポンプ |
US10468927B2 (en) * | 2014-04-15 | 2019-11-05 | Tm4, Inc. | Inserted permanent magnet rotor for an external rotor electric machine |
JP6441617B2 (ja) * | 2014-09-01 | 2018-12-19 | 株式会社ミツバ | ブラシレスモータ |
JP5907466B1 (ja) * | 2014-11-12 | 2016-04-26 | 良幸 加来 | 極小ギャップの発電機または電動機 |
DE102015210908A1 (de) * | 2015-06-15 | 2016-12-15 | Bühler Motor GmbH | Elektromotorisch angetriebene Flüssigkeitspumpe |
DE202015105244U1 (de) * | 2015-10-05 | 2017-01-09 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Pumpe-Motor-Einheit |
WO2017142940A1 (en) | 2016-02-15 | 2017-08-24 | Indiana University Research And Technology Corporation | High torque density electric motor/generator with rolling element |
CN108566018B (zh) * | 2018-07-09 | 2023-11-10 | 深圳市八达威科技有限公司 | 一种旋转式密封的无刷直流电机 |
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2004
- 2004-02-16 JP JP2004037869A patent/JP4475391B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-15 US US10/589,415 patent/US20070182259A1/en not_active Abandoned
- 2005-02-15 KR KR1020067016417A patent/KR20060124702A/ko not_active Application Discontinuation
- 2005-02-15 WO PCT/JP2005/002252 patent/WO2005078279A1/ja active Application Filing
- 2005-02-15 EP EP05710203A patent/EP1717443A4/en not_active Withdrawn
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JPH03164582A (ja) * | 1989-11-20 | 1991-07-16 | Matsushita Electric Ind Co Ltd | 電動圧縮機 |
JPH03271575A (ja) * | 1990-03-20 | 1991-12-03 | Matsushita Electric Ind Co Ltd | 電動圧縮機 |
JPH1075542A (ja) * | 1996-08-29 | 1998-03-17 | Aichi Emerson Electric Co Ltd | 圧縮機駆動用電動機 |
JP2003269345A (ja) * | 2002-03-13 | 2003-09-25 | Aisin Seiki Co Ltd | 電動オイルポンプ |
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Title |
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See also references of EP1717443A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20070182259A1 (en) | 2007-08-09 |
EP1717443A4 (en) | 2010-10-20 |
JP4475391B2 (ja) | 2010-06-09 |
JP2005226602A (ja) | 2005-08-25 |
EP1717443A1 (en) | 2006-11-02 |
KR20060124702A (ko) | 2006-12-05 |
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