WO2016035398A1 - 電動オイルポンプ - Google Patents

電動オイルポンプ Download PDF

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Publication number
WO2016035398A1
WO2016035398A1 PCT/JP2015/065003 JP2015065003W WO2016035398A1 WO 2016035398 A1 WO2016035398 A1 WO 2016035398A1 JP 2015065003 W JP2015065003 W JP 2015065003W WO 2016035398 A1 WO2016035398 A1 WO 2016035398A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
end surface
housing
rotor
oil pump
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/JP2015/065003
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
田村　栄治
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.)
Hitachi Astemo Ltd
Original Assignee
Hitachi Automotive Systems Ltd
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 Hitachi Automotive Systems Ltd filed Critical Hitachi Automotive Systems Ltd
Priority to US15/021,093 priority Critical patent/US10047745B2/en
Priority to DE112015000168.9T priority patent/DE112015000168B4/de
Priority to CN201580001145.6A priority patent/CN105705791B/zh
Publication of WO2016035398A1 publication Critical patent/WO2016035398A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • 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
    • 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
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • 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
    • 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
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • 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
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/12—Vibration
    • F04C2270/125—Controlled or regulated

Definitions

  • the present invention relates to an electric oil pump, and more particularly to an electric oil pump combined with an automatic transmission of an automobile.
  • trochoidal internal gear pumps are often used as electric oil pumps mounted on automobile automatic transmissions.
  • the pump rotor is rotated by a drive rotating shaft driven by an electric motor, and the outer rotor having the inner teeth that mesh with the outer teeth of the pump rotor is rotated, so that the inner teeth of the outer rotor and the outer teeth of the pump rotor are The volume of the plurality of volume chambers formed between the two is continuously changed to suck and discharge the working oil.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2012-207638
  • a drive control unit that controls energization to the electric motor, a winding unit that generates a magnetomotive force by energization from the drive control unit, a stator unit having an iron core, and an inner circumferential space of the stator unit
  • the rotor portion having a permanent magnet and rotating by magnetomotive force, the drive rotation shaft fixed to the rotor portion by means such as press-fitting and rotating integrally, and the drive rotation shaft fixed by means such as press-fitting to the drive rotation shaft
  • a pump rotor portion that rotates integrally with the shaft.
  • the stator portion and the rotor portion constitute an electric motor.
  • a stator part constituting the electric motor part is accommodated and arranged on the inner side from the opening end surface of the electric motor accommodating part formed in the pump housing.
  • the rotor part which comprises a part is also arrange
  • the electric oil pump is housed in a pump housing portion formed in the housing of the automatic transmission.
  • the electric oil pump and the housing of the automatic transmission are fixed to the pump housing of the electric oil pump.
  • Bolts are fixed to the casing of the automatic transmission via a mounting bracket formed on the front. That is, an opening through which the fixing bolt is inserted is formed in the mounting bracket extending radially outward from the opening end surface of the motor housing portion of the pump housing, and the fixing bolt is screwed into the casing of the automatic transmission through this opening.
  • the pump is firmly fixed to the casing of the automatic transmission.
  • the electric oil pump fixing part is located substantially on the same plane as the opening end face of the electric motor storage part.
  • An object of the present invention is to provide a novel electric oil pump capable of suppressing the phenomenon that the rotor portion is shaken under the influence of vibration.
  • a feature of the present invention is that the stator portion is fixed to the motor housing portion at a position where the end surface of the stator portion protrudes outward beyond the opening end surface of the motor housing portion, and the center of gravity of the motor portion is brought close to the opening end surface of the motor housing portion. There is a place.
  • the present invention it is possible to suppress the phenomenon that the rotor part is hardly affected by vibration and the rotor part is shaken by the influence of vibration by bringing the center of gravity of the electric motor part close to the opening end surface of the motor housing part. can do
  • the electric oil / oil pump is, for example, an oil pump mounted for an automatic transmission of a vehicle having an idle stop function.
  • This automatic transmission is a belt-type continuously variable transmission, and includes a mechanical pump that is driven by an engine.
  • the electric oil pump can be fixed to various pump fixing devices.
  • the electric oil pump is used as a hydraulic pressure supply source of the automatic transmission. It is fixed to the housing.
  • the automatic transmission may be a stepped transmission other than the belt type continuously variable transmission.
  • the electric oil pump 10 includes an electric motor unit 10A, a terminal case unit 10B fixed adjacent to the electric motor unit 10A, and a pump unit 10C driven by the electric motor unit 10A.
  • the electric motor unit 10 ⁇ / b> A includes at least a rotor unit 16 and a stator unit 18.
  • the electric motor unit 10A is accommodated in an electric motor unit accommodating unit 24 provided on one side of a metallic pump housing 20 made of, for example, an aluminum alloy.
  • the pump housing 20 is formed on the other side of the pump housing 20 to house the pump 10C.
  • the pump unit 10C includes at least a pump rotor 12 having an external gear and an outer rotor 14 having an internal gear.
  • the pump rotor 12 and the outer rotor 14 are housed in a pump housing portion 22 provided on the other side of the pump housing 20.
  • the terminal case portion 10B is made of a synthetic resin that covers a terminal case 46 made of synthetic resin fixed to the pump housing 20 and a terminal forming body (not shown) that is molded and accommodated integrally in the terminal case 46. And a terminal cover 48.
  • the electric oil pump 10 is fixed to the casing 26 of the automatic transmission.
  • a pump housing portion 26A is formed in the casing 26 of the automatic transmission, and an operating oil inflow passage 26B and an outflow passage 26C are provided in the pump housing portion 26A.
  • the electric oil pump 10 is housed in the pump housing portion 26A, and is fixed to the housing 26 by fixing bolts or the like. Then, the operation oil is sucked from the inflow passage 26B by the operation of the electric oil pump 10, and discharged from the outflow passage 26C.
  • the space formed by the inner peripheral surface of the pump housing portion 26 ⁇ / b> A and the outer peripheral surface of the pump housing 20 of the electric oil pump 10 is filled with the working oil, and this working oil is sucked by the electric oil pump 10. And discharged to the outflow passage 26C. Therefore, the hydraulic oil is in thermal contact with the outer peripheral surface of the pump housing 20 of the electric oil pump 10, and heat can be taken from the outer peripheral surface of the pump housing 20 to cool the electric oil pump 10.
  • the electric oil pump 10 includes a pump portion 10C including a pump rotor 12 having an external gear and an outer rotor 14 having an internal gear, a rotor portion 16 coupled to the pump rotor 12, and a stator portion 18. And an electric motor unit 10A.
  • the stator portion 18 includes a winding 18B wound around a bobbin 18A, and an iron core 18C that forms a magnetic circuit by the winding 18B. The winding 18B is drawn into the terminal case portion 10B from the electric motor portion 10A.
  • pump part 10C and electric motor part 10A are accommodated in a pump part accommodating part 22 provided on one end face of the pump housing 20 and an electric part accommodating part 24 provided on the other end face. That is, the pump housing 20 is rotatably formed inside the one end surface of the pump housing 20, and the stator 18 is fixedly supported on the inner peripheral side of the opening on the other end surface. An electric motor unit storage unit 24 that stores the rotor unit 16 and the like is formed.
  • a mounting bracket 51 formed integrally with the pump housing 20 extending radially outward from the opening end face of the electric motor housing 24 is formed.
  • the mounting bracket 51 has a function for mounting the electric oil pump to the housing 26 of the automatic transmission.
  • the opening end surface of the motor housing portion 24 is configured to open on the same plane as the outer end surface OS of the mounting bracket 51.
  • the mounting bracket 51 formed on the opening end face side of the motor housing portion 24 of the pump housing 20 has an opening for inserting a fixing bolt, and is fixed to the housing 26 of the automatic transmission by a fixing bolt (not shown). It is. Although not shown, only two other mounting brackets 51 having the same configuration are formed, and the electric oil pump 10 is fixed to the housing 26 with the same configuration.
  • a slide bearing portion 30 that rotatably supports a drive rotary shaft 28 that connects the pump rotor 12 and the rotor portion 16.
  • the slide bearing portion 30 is configured to pivotally support the outer peripheral surface of the intermediate portion of the drive rotary shaft 28 with its inner peripheral surface.
  • the sliding bearing part 30 is formed in the partition wall 32 which isolates between the pump part accommodating part 22 and the motor part accommodating part 24.
  • FIG. A gap having a predetermined length is formed between the inner peripheral surface of the sliding bearing portion 30 and the outer peripheral surface of the drive rotary shaft 28, and the oil on the discharge side having a high pressure via the oil introduction passage 34 is formed in this gap.
  • a seal member 36 for sealing the drive rotary shaft 28 is provided above the drive rotary shaft 28 and the sliding bearing portion 30.
  • the pump cover 38 has a discharge port 40 extending in a cylindrical shape communicating with the discharge port of the pump unit 10C, and a suction port 42 communicating with the suction port of the pump unit 10C.
  • a seal ring 44 is attached to the outer periphery of the distal end of the discharge port 40.
  • the pump cover 38 is also fixed to the pump housing 20 so as to cover the pump portion storage portion 22 by a fixing bolt (not shown).
  • a terminal case 46 constituting the terminal case portion 10B is fixed to the motor housing portion 24 side of the pump housing 20, and a terminal cover 48 is fixed so as to seal the terminal case 46.
  • the terminal case portion 10B is made of synthetic resin that covers a terminal case 46 made of synthetic resin fixed to the pump housing 20 and a terminal forming body (not shown) that is molded and accommodated integrally in the terminal case 46. Terminal cover 48 and the terminal cover 48.
  • the input terminal forming body and the neutral terminal forming body and the end of the winding 18A wound around the stator portion 18 of the electric motor portion 10A are formed by fusing processing. It is connected.
  • a connector case 50 is formed integrally with the terminal case 46, and a part of the terminal forming body is exposed to the connector portion 50 and connected to an external control device (not shown). .
  • the winding start end portion and the winding end end portion of the winding 18 ⁇ / b> B wound around the stator portion 18 configuring the electric motor portion 10 ⁇ / b> A are fixed adjacent to the electric motor portion storage portion 24.
  • the input terminal forming body and the neutral terminal forming body embedded in the terminal case 46 are connected through the insertion hole provided in the terminal case 46. Therefore, a drive control signal from a control device (not shown) is supplied to the winding 18B via the input terminal forming body to rotate the rotor portion 16 of the electric motor portion 10A, and finally rotate the pump rotor 12 to perform the pump action. Is what you are doing.
  • the stator portion 18 constituting the electric motor portion from the opening end surface of the electric motor housing portion 24 formed in the pump housing 20 to the inside. Accordingly, the rotor part 16 constituting the electric motor part 10A is also arranged further inside from the opening end surface of the electric motor storage part 24, and the center of gravity of the whole electric motor part 10A is located at the back of the electric motor storage part 24. Will be on the side.
  • this embodiment is characterized by adopting the following configuration.
  • the end surface CS of the stator portion 18 protrudes by a predetermined distance L1 beyond the position of the outer end surface OS of the mounting bracket 51, which is the opening end surface of the motor housing portion 24,
  • the stator unit 18 is fixed to the electric motor storage unit 24, and the center of gravity of the electric motor unit 10A is brought close to the opening end surface of the electric motor storage unit 24.
  • the rotor portion 16 is also moved accordingly, and thereby the center of gravity of the electric motor portion 10A is also moved. Therefore, the distance between the extended surface of the outer end surface OS of the mounting bracket 51 formed on the pump housing 20 and the center of gravity of the motor portion 10A on the line orthogonal to the extension surface is shortened, and the ratio of being affected by vibration is reduced.
  • the end surface CS of the stator portion 18 means at least the outer peripheral surface of the bobbin 18A.
  • the outer peripheral surface of the bobbin 18 ⁇ / b> A becomes the end surface CS of the stator portion 18, and this end surface CS protrudes outward beyond the position of the outer end surface OS of the mounting bracket 51 that is the opening end surface of the electric motor housing portion 24. Yes.
  • the center of gravity of the electric motor portion 10A can be moved so that the influence of vibration can be further reduced.
  • the terminal case portion 10B is also moved outward. You have to move it.
  • the center of gravity of the motor unit 10A is moved within the range that does not change the distance L2 between the surface of the casing 26 of the automatic transmission and the tip of the terminal case unit 10B.
  • stator portion 18 Furthermore, by moving the stator portion 18, it becomes possible to obtain new configurations, functions, and effects as described below.
  • the rotor portion 16 can also be moved to the right side, so that the length of the sliding bearing portion 30 can be increased by this amount. Therefore, it is possible to further reduce the vibration of the drive rotating shaft 28 by making the sliding bearing portion 30 longer.
  • the center of gravity of the rotating mechanism portion including the rotor portion 16 was outside the sliding bearing portion 30, but by increasing the length of the sliding bearing portion 30, the center of gravity of the rotating mechanism portion. Can be accommodated within the range of the sliding bearing portion 30, and the drive rotating shaft 28 can be further prevented from being shaken.
  • the tilt due to the swing of the drive rotary shaft 28 causes the following problems. That is, in an automobile with an idle stop function or a hybrid vehicle, the electric oil pump 10 is operated with the internal combustion engine stopped. Therefore, since there is no operation sound of the internal combustion engine, the operation sound of the electric oil pump 10 at this time becomes a harsh sound for the passengers in the passenger compartment. For this reason, it is desired to reduce the operating noise of the electric oil pump 10 as much as possible.
  • One of the generation factors of the operation sound of the electric oil pump 10 is caused by the inclination due to the swing of the drive rotary shaft 28.
  • the drive rotary shaft 28 is supported by a cantilevered slide bearing 30, and the drive rotary shaft 28 is inclined by a gap between the inner peripheral surface of the slide bearing 30 and the outer peripheral surface of the drive rotary shaft 28, and the stator portion and the rotor
  • the gaps become non-uniform between the portions, which causes disturbances in the spatial magnetic flux waveform and generates harmonic components. This harmonic component increases the electromagnetic excitation force in the radial direction and causes vibration, resulting in noise.
  • the stator portion 18 is fixed to the motor housing portion 24 at a position where the end surface CS of the stator portion 18 projects outward beyond the opening end surface of the motor housing portion 24, and the center of gravity of the motor portion 10A is housed in the motor. It is configured to be close to the opening end face of the portion 24. For this reason, the rotor portion 16 is not easily affected by vibration by bringing the center of gravity of the motor portion 10A closer to the opening end surface of the motor housing portion 24, and noise caused by the rotor portion 16 being shaken and tilted by the influence of vibration. The effect of reducing the amount can be expected.
  • the stator unit is fixed to the motor housing unit at a position where the end surface of the stator unit projects outward beyond the opening end surface of the motor housing unit, and the center of gravity of the motor unit is It is characterized by being close to the opening end face. According to this, the rotor part becomes difficult to be affected by vibration due to the center of gravity of the motor part being brought close to the opening end surface of the motor housing part, and the phenomenon that the rotor part is shaken by the influence of vibration is suppressed. be able to.
  • this invention is not limited to the above-mentioned Example, Various modifications are included.
  • the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
PCT/JP2015/065003 2014-09-03 2015-05-26 電動オイルポンプ Ceased WO2016035398A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/021,093 US10047745B2 (en) 2014-09-03 2015-05-26 Electric oil pump
DE112015000168.9T DE112015000168B4 (de) 2014-09-03 2015-05-26 Elektrische Ölpumpe
CN201580001145.6A CN105705791B (zh) 2014-09-03 2015-05-26 电动油泵

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014178627A JP6385762B2 (ja) 2014-09-03 2014-09-03 電動オイルポンプ
JP2014-178627 2014-09-03

Publications (1)

Publication Number Publication Date
WO2016035398A1 true WO2016035398A1 (ja) 2016-03-10

Family

ID=55439472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/065003 Ceased WO2016035398A1 (ja) 2014-09-03 2015-05-26 電動オイルポンプ

Country Status (5)

Country Link
US (1) US10047745B2 (enExample)
JP (1) JP6385762B2 (enExample)
CN (1) CN105705791B (enExample)
DE (1) DE112015000168B4 (enExample)
WO (1) WO2016035398A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110168224A (zh) * 2017-01-11 2019-08-23 松下知识产权经营株式会社 电动油泵
JP6965818B2 (ja) * 2018-04-19 2021-11-10 トヨタ自動車株式会社 車両用電動オイルポンプ
JP2020165410A (ja) * 2019-03-29 2020-10-08 日本電産トーソク株式会社 電動ポンプ装置および電動ポンプ装置の取付構造
JP7589565B2 (ja) 2021-01-25 2024-11-26 ニデックパワートレインシステムズ株式会社 電動ポンプ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013096283A (ja) * 2011-10-31 2013-05-20 Jtekt Corp 電動オイルポンプ装置
JP2013122251A (ja) * 2013-02-19 2013-06-20 Hitachi Automotive Systems Ltd 電動ポンプ
JP2013150520A (ja) * 2012-01-23 2013-08-01 Aisin Seiki Co Ltd 電動ポンプ及び電動ポンプに用いるハウジングの樹脂成形方法

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JP3304680B2 (ja) * 1995-04-24 2002-07-22 株式会社日立製作所 ブロワ装置
JP3886697B2 (ja) * 1999-04-27 2007-02-28 アイシン・エィ・ダブリュ株式会社 駆動装置
JP2005312086A (ja) * 2002-10-31 2005-11-04 Nsk Ltd 電動パワーステアリング装置
US8696326B2 (en) * 2009-05-14 2014-04-15 Magna Powertrain Inc. Integrated electrical auxiliary oil pump
WO2011016467A1 (ja) * 2009-08-04 2011-02-10 株式会社ジェイテクト 電動ポンプユニット
JP5502008B2 (ja) * 2011-03-30 2014-05-28 日立オートモティブシステムズ株式会社 内接歯車ポンプ
JP5760891B2 (ja) * 2011-09-17 2015-08-12 株式会社ジェイテクト 電動オイルポンプ
US9810223B2 (en) * 2012-09-20 2017-11-07 Asmo Co., Ltd. Electric pump

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JP2013096283A (ja) * 2011-10-31 2013-05-20 Jtekt Corp 電動オイルポンプ装置
JP2013150520A (ja) * 2012-01-23 2013-08-01 Aisin Seiki Co Ltd 電動ポンプ及び電動ポンプに用いるハウジングの樹脂成形方法
JP2013122251A (ja) * 2013-02-19 2013-06-20 Hitachi Automotive Systems Ltd 電動ポンプ

Also Published As

Publication number Publication date
DE112015000168T5 (de) 2016-05-25
JP6385762B2 (ja) 2018-09-05
CN105705791B (zh) 2018-06-08
US10047745B2 (en) 2018-08-14
DE112015000168B4 (de) 2017-05-04
CN105705791A (zh) 2016-06-22
US20160215776A1 (en) 2016-07-28
JP2016053310A (ja) 2016-04-14

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