US20120164009A1 - Electric pump unit - Google Patents

Electric pump unit Download PDF

Info

Publication number
US20120164009A1
US20120164009A1 US13/390,420 US201013390420A US2012164009A1 US 20120164009 A1 US20120164009 A1 US 20120164009A1 US 201013390420 A US201013390420 A US 201013390420A US 2012164009 A1 US2012164009 A1 US 2012164009A1
Authority
US
United States
Prior art keywords
pump
rotor
motor
outer rotor
permanent magnet
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.)
Abandoned
Application number
US13/390,420
Other languages
English (en)
Inventor
Takatoshi Sakata
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.)
JTEKT Corp
Original Assignee
JTEKT Corp
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 JTEKT Corp filed Critical JTEKT Corp
Assigned to JTEKT CORPORATION reassignment JTEKT CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SAKATA, TAKATOSHI
Publication of US20120164009A1 publication Critical patent/US20120164009A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • 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
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • 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
    • F04C2240/00—Components
    • F04C2240/40—Electric motor

Definitions

  • the invention relates to an electric pump unit that is used as a hydraulic pump that supplies hydraulic pressure to, for example, a transmission (speed change gear), or the like, of an automobile.
  • an electric pump unit is used as a hydraulic pump of an automobile in order to achieve energy saving by minutely controlling start and stop of the electric pump unit and to ensure hydraulic pressure supplied to a drive train, such as a transmission, even during a stop of an engine through an idle stop (idling stop).
  • An electric pump unit for an automobile is mounted in a limited space of a vehicle body, so the electric pump unit is required to be compactified, and also required to be light in weight and reduced in cost.
  • an electric pump unit in response to this request such that a pump, a pump driving electric motor and a controller of the motor are integrally assembled in a common unit housing (for example, see Patent Document 1).
  • Patent Document 1 Japanese Patent Application Publication No. 2008-215088
  • the pump and the motor are coupled via a motor shaft and are aligned in the axial direction, so the size in the axial direction is large, and there is a limit of compactification.
  • One object of the invention is to provide an electric pump unit that may be compactified and that may be reduced in weight and cost.
  • An electric pump unit is configured such that a pump chamber having a fluid suction port and a fluid discharge port is formed on an inner side of a motor stator that is fixedly provided on an inner periphery of a synthetic resin unit housing and only part of an inner peripheral side of which is exposed to an inside of the unit housing, a pump outer rotor is arranged on an inner side of the motor stator in the pump chamber so as to be able to rotate using an inner periphery of the motor stator as a guide, a pump inner rotor that is supported for rotation by the unit housing is arranged on an inner side of the pump outer rotor, and a motor rotor is formed such that a permanent magnet is held by a synthetic resin permanent magnet holding portion that is provided by integral molding on an outer periphery of the pump outer rotor.
  • FIG. 1 is a longitudinal sectional view of an electric pump unit that shows an embodiment of the invention.
  • FIG. 2 is a sectional view that is taken along the line II-II in FIG. 1 .
  • FIG. 3 is an exploded perspective view of a pump outer rotor.
  • FIG. 1 is a longitudinal sectional view of an electric pump unit. Note that, in the following description, the left side in FIG. 1 is defined as front side, and the right side is defined as rear side.
  • the electric pump unit is formed such that a pump and a pump driving electric motor are integrally assembled in a unit housing 1 made of synthetic resin.
  • the pump is an internal gear pump
  • the motor is a DC brushless motor having three-phase coils.
  • a controller (not shown) of the motor is provided separately from the electric pump unit.
  • the housing 1 is formed of a rear-side housing body 2 and a front-side lid 3 .
  • the housing body 2 has a cylindrical shape such that the rear end of a cylindrical portion 2 a is closed by a rear wall 2 b and a front portion is open.
  • a short cylindrical portion 2 c that has an outside diameter smaller than the bore diameter of the cylindrical portion 2 a and that is concentric with the cylindrical portion 2 a is integrally formed at the center of the front surface (inner surface) of the rear wall 2 b.
  • the lid 3 has a disc shape, and a short cylindrical portion 3 a that is concentric with the short cylindrical portion 2 c of the housing body 2 and that has an outside diameter equal to the outside diameter of the short cylindrical portion 2 c is integrally formed at the center of the rear surface (inner surface) of the lid 3 .
  • the outer peripheral portion of the lid 3 is fixed to the front end surface of the cylindrical portion 2 a of the housing body 2 via an O ring 4 .
  • a connector is provided at an appropriate portion of the outer surface of the housing body 2 .
  • a motor stator 5 is fixedly provided on the inner periphery of the cylindrical portion 2 a of the housing body 2 .
  • the stator 5 is formed such that a portion that includes the inner peripheral surface of a core 6 formed of laminated steel plate is covered with an insulator (insulator made of synthetic resin) 7 , and coils 8 are wound around the portion of the insulator 7 .
  • the coils 8 are connected to the connector (not shown).
  • the stator 5 is integrally molded on the inner periphery of the cylindrical portion 2 a, the front portion of the insulator 7 and coils 8 is covered with an inward flange portion 2 d that is formed integrally with the front end of the cylindrical portion 2 a of the housing body 2 , and the rear portion of the insulator 7 and coils 8 is covered with the rear wall 2 b of the housing body 2 .
  • the outer periphery of the portion of the insulator 7 on the front and rear sides of the core 6 is in close contact with the inner periphery of the cylindrical portion 2 a
  • the inner periphery of the insulator 7 is in close contact with the outer periphery of the short cylindrical portion 3 a of the lid 3 and the outer periphery of the short cylindrical portion 2 c of the housing body 2
  • the inner periphery of the insulator 7 on the inner side of the core 6 is exposed to the inside of the housing 2 .
  • a pump chamber 9 is formed on the inner side of the stator 5 between both short cylindrical portions 2 c and 3 a.
  • a pump outer rotor (outer gear) 10 is arranged on the inner side of the stator 5 inside the pump chamber 9 so as to be able to rotate using the inner periphery of the stator 5 as a guide, and a pump inner rotor (inner gear) 11 that is supported for rotation by the housing 2 and that is in mesh with the outer rotor 10 is arranged on the inner side of the outer rotor 10 .
  • the outer rotor 10 is made of synthetic resin. Teeth 10 a are formed on the inner periphery of the outer rotor 10 , and a motor rotor 14 having permanent magnets 13 is provided on the outer periphery of the outer rotor 10 .
  • the motor rotor 14 is formed such that the segmented permanent magnets 13 are held at multiple portions (eight portions in this example) that equally divide a synthetic resin permanent magnet holding portion 15 , which is fixedly provided on the outer periphery of the outer rotor 10 , in the circumferential direction.
  • the outer rotor 10 made of synthetic resin is integrally molded with the permanent magnet holding portion 15 in a state where a back yoke 16 made of an iron-based material is in-molded.
  • the permanent magnet holding portion 15 has an outward rib 15 a that is integrally formed with the outer peripheral rear end of the outer rotor 10 and permanent magnet holding protrusions 15 b that are integrally formed at multiple portions that equally divide the outer periphery of the outer rotor 10 in the circumferential direction and that extend from the front surface of the rib 15 a to the front end of the outer rotor 10 .
  • the outer peripheries of the protrusions 15 b form a cylindrical surface as in the case of the rib 15 a , and the diameters of both cylindrical surfaces are equal to each other.
  • Each protrusion 15 b has a V-shaped cross-sectional shape, and the mutual space between the adjacent protrusions 15 b gradually reduces radially outward.
  • each permanent magnet 13 in the circumferential direction also gradually reduces radially outward, and each permanent magnet 12 is inserted from the front side and held between the adjacent protrusions 15 b.
  • the outer periphery of the rib 15 a and the outer peripheries of the protrusions 15 b are in slide contact with the inner periphery of the insulator 7 exposed to the inside of the housing 2 , and the outer rotor 10 uses them as a guide to rotate.
  • the outer peripheral surface of the back yoke 16 in-molded in the outer rotor 10 is exposed from the outer rotor 10 between the adjacent protrusions 15 b, that is, the portions at which the permanent magnets 13 are held.
  • the inner rotor 11 is made of synthetic resin or made of a sintered compact of an iron-based material. Both ends of a shaft 17 extending in the longitudinal direction are rotationally supported by the short cylindrical portion 3 a of the lid 3 and the short cylindrical portion 2 c of the housing body 2 , and the inner rotor 11 is fixed to the shaft 17 . Teeth 11 a are formed on the outer periphery of the inner rotor 11 .
  • the lid 3 has an oil suction port 18 and an oil discharge port 19 that are in fluid communication with the pump chamber 9 .
  • the electric motor is formed of the stator 5 and the rotor 14 of the outer rotor 10
  • the pump is formed of the outer rotor 10 and the inner rotor 11 .
  • the controller of the motor is arranged separately from the electric pump unit, and is connected to the motor via the connector (not shown) of the housing body 2 .
  • the motor operates.
  • the outer rotor 10 integrated with the motor rotor 14 rotates, and the pump operates.
  • oil is introduced into the pump chamber 9 via the suction port 18 , and is discharged via the discharge port 19 .
  • the electric pump unit is configured such that the pump is arranged inside the motor stator 5 that constitutes the electric motor, so the size in the axial direction is small, and further compactification is possible.
  • the motor rotor 14 is integrated with the outer periphery of the pump outer rotor 10 , so the number of components is small, and further reduction in weight and cost is possible.
  • the outer rotor 10 integrated with the motor rotor 14 is configured to rotate using the inner periphery of the motor stator 5 as a guide, so it is possible to properly keep the gap in the radial direction between the motor stator 5 and the permanent magnets 12 of the motor rotor 14 .
  • the motor rotor 14 is formed such that the permanent magnets 13 are held by the synthetic resin permanent magnet holding member 15 that is formed by integral molding on the outer periphery of the outer rotor 10 , so it is not necessary to fix the permanent magnets 13 to the outer rotor 10 by adhesive agent and, therefore, there is no possibility of peeling of the permanent magnets 13 .
  • the outer periphery of the permanent magnet holding portion is guided by the inner periphery of the motor stator.
  • the back yoke made of an iron-based material is in-molded in the pump outer rotor that is integrally molded with the permanent magnet holding portion.
  • the overall configuration and configuration of portions of the electric pump unit are not limited to the ones of the above embodiment, and may be appropriately modified.
  • the invention may be applied to an electric pump unit other than the electric pump unit for an automobile.
  • the electric pump unit that introduces and discharges oil is described; however, the electric pump unit is not limited to this configuration.
  • the electric pump unit may introduce and discharge another fluid, such as water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
US13/390,420 2009-09-11 2010-09-10 Electric pump unit Abandoned US20120164009A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009-209992 2009-09-11
JP2009209992A JP2011058441A (ja) 2009-09-11 2009-09-11 電動ポンプユニット
PCT/JP2010/065611 WO2011030849A1 (fr) 2009-09-11 2010-09-10 Unité de pompe électrique

Publications (1)

Publication Number Publication Date
US20120164009A1 true US20120164009A1 (en) 2012-06-28

Family

ID=43732517

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/390,420 Abandoned US20120164009A1 (en) 2009-09-11 2010-09-10 Electric pump unit

Country Status (5)

Country Link
US (1) US20120164009A1 (fr)
EP (1) EP2476904A4 (fr)
JP (1) JP2011058441A (fr)
CN (1) CN102483059A (fr)
WO (1) WO2011030849A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160172914A1 (en) * 2014-12-11 2016-06-16 Johnson Electric S.A. Rotor, motor, pump and cleaning apparatus
US20190353161A1 (en) * 2018-05-15 2019-11-21 Schaeffler Technologies AG & Co. KG Integrated eccentric motor and pump assembly
RU2731427C1 (ru) * 2017-06-28 2020-09-02 Атлас Копко Эрпауэр, Намлозе Веннотсхап Цилиндрическая симметричная машина объемного действия
WO2021101065A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
WO2021101063A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
WO2021101062A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
WO2021101064A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
US11428221B2 (en) * 2018-09-14 2022-08-30 Hanon Systems Bad Homburg GmbH Gerotor pump and method of making pressure equalization in a gerotor pump
US20230323876A1 (en) * 2020-08-20 2023-10-12 Gkn Sinter Metals Engineering Gmbh Pump Arrangement
WO2024028294A1 (fr) * 2022-08-04 2024-02-08 Vitesco Technologies GmbH Pompe, en particulier pompe à huile de transmission

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077094A1 (de) * 2011-06-07 2012-12-13 Mahle International Gmbh Pendelschieberpumpe
FR2983248B1 (fr) * 2011-11-29 2015-04-03 Turbomeca Turbomachine comportant une pompe d'alimentation en carburant a activation electrique et procede d'alimentation en carburant d'une turbomachine
JP6081824B2 (ja) * 2013-03-06 2017-02-15 アスモ株式会社 電動ポンプ
JP2014173443A (ja) * 2013-03-06 2014-09-22 Asmo Co Ltd 電動ポンプ
ITUB20155909A1 (it) * 2015-11-25 2017-05-25 Bosch Gmbh Robert Pompa ad ingranaggi
IT201600125212A1 (it) * 2016-12-12 2018-06-12 Bosch Gmbh Robert Pompa elettrica a ingranaggi
IT201600129613A1 (it) * 2016-12-21 2018-06-21 Bosch Gmbh Robert Pompa elettrica a ingranaggi
IT201600130203A1 (it) * 2016-12-22 2018-06-22 Bosch Gmbh Robert Pompa elettrica a ingranaggi
BE1025570B1 (nl) * 2017-09-21 2019-04-17 Atlas Copco Airpower Naamloze Vennootschap Cilindrisch symmetrische volumetrische machine
WO2019115168A1 (fr) * 2017-12-13 2019-06-20 Robert Bosch Gmbh Unité de pompage pour l'alimentation en carburant, de préférence de carburant diesel, d'un moteur à combustion interne
DE102017223715A1 (de) 2017-12-22 2019-06-27 Magna Powertrain Bad Homburg GmbH Gerotorpumpe und Verfahren zur Herstellung einer solchen
KR20230007094A (ko) * 2021-07-05 2023-01-12 엘지이노텍 주식회사 펌프

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050186089A1 (en) * 2004-02-23 2005-08-25 Aisin Seiki Kabushiki Kaisha Electric pump
US20080159885A1 (en) * 2005-05-31 2008-07-03 Hitachi, Ltd. Motor-Mounted Internal Gear Pump and Manufacturing Method Thereof and Electronic Equipment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2819024B2 (ja) * 1988-07-14 1998-10-30 株式会社タツノ・メカトロニクス 超電導ロータリーポンプ
JP3631808B2 (ja) * 1995-06-20 2005-03-23 本田技研工業株式会社 回転機用ロータ、そのロータの製造方法および磁石ユニット
JPH11210642A (ja) * 1998-01-20 1999-08-03 Zexel:Kk 内接ギアポンプ
DE29913367U1 (de) * 1999-07-30 1999-12-09 Pumpenfabrik Ernst Scherzinger GmbH & Co. KG, 78120 Furtwangen Innen-Zahnradpumpe, deren Hohlrad das Innere eines Rotors eines Elektromotors ist
JP4566336B2 (ja) * 2000-05-31 2010-10-20 株式会社ソディック 同期機ロータ
JP2003129966A (ja) * 2001-10-24 2003-05-08 Aisin Seiki Co Ltd 電動オイルポンプ
JP2004232578A (ja) * 2003-01-31 2004-08-19 Koyo Seiko Co Ltd 電動トロコイドポンプ
JP4484030B2 (ja) * 2004-01-20 2010-06-16 株式会社ジェイテクト 電動ポンプユニット
JP2005318765A (ja) * 2004-04-30 2005-11-10 Mitsui High Tec Inc 回転子鉄心および回転子
WO2007072622A1 (fr) * 2005-12-21 2007-06-28 Honda Motor Co., Ltd. Moteur électrique
JP2008215088A (ja) 2007-02-28 2008-09-18 Jtekt Corp 電動ポンプユニット及び電動オイルポンプ
JP2008245414A (ja) * 2007-03-27 2008-10-09 Matsushita Electric Works Ltd ブラシレスモータ
JP5141956B2 (ja) * 2007-12-25 2013-02-13 アイシン精機株式会社 電動ポンプ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050186089A1 (en) * 2004-02-23 2005-08-25 Aisin Seiki Kabushiki Kaisha Electric pump
US20080159885A1 (en) * 2005-05-31 2008-07-03 Hitachi, Ltd. Motor-Mounted Internal Gear Pump and Manufacturing Method Thereof and Electronic Equipment

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10250090B2 (en) * 2014-12-11 2019-04-02 Johnson Electric International AG Rotor, motor, pump and cleaning apparatus
US20160172914A1 (en) * 2014-12-11 2016-06-16 Johnson Electric S.A. Rotor, motor, pump and cleaning apparatus
US11225964B2 (en) * 2017-06-28 2022-01-18 Atlas Copco Airpower, Naamloze Vennootschap Cylindrical symmetric volumetric machine
RU2731427C1 (ru) * 2017-06-28 2020-09-02 Атлас Копко Эрпауэр, Намлозе Веннотсхап Цилиндрическая симметричная машина объемного действия
US20190353161A1 (en) * 2018-05-15 2019-11-21 Schaeffler Technologies AG & Co. KG Integrated eccentric motor and pump assembly
US10927833B2 (en) * 2018-05-15 2021-02-23 Schaeffler Technologies AG & Co. KG Integrated eccentric motor and pump assembly
US11703049B2 (en) 2018-09-14 2023-07-18 Hanon Systems Bad Homburg GmbH Gerotor pump with pressure equalization
US11428221B2 (en) * 2018-09-14 2022-08-30 Hanon Systems Bad Homburg GmbH Gerotor pump and method of making pressure equalization in a gerotor pump
US20220412351A1 (en) * 2019-11-21 2022-12-29 Lg Innotek Co., Ltd. Pump
WO2021101063A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
WO2021101064A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
EP4063655A4 (fr) * 2019-11-21 2022-12-28 LG Innotek Co., Ltd. Pompe
US20220412349A1 (en) * 2019-11-21 2022-12-29 Lg Innotek Co., Ltd. Pump
WO2021101062A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
US20230003219A1 (en) * 2019-11-21 2023-01-05 Lg Innotek Co., Ltd. Pump
WO2021101065A1 (fr) * 2019-11-21 2021-05-27 엘지이노텍 주식회사 Pompe
EP4063656A4 (fr) * 2019-11-21 2023-12-27 LG Innotek Co., Ltd. Pompe
US12038003B2 (en) * 2019-11-21 2024-07-16 Lg Innotek Co., Ltd. Pump
US12055141B2 (en) * 2019-11-21 2024-08-06 Lg Innotek Co., Ltd. Pump
US20230323876A1 (en) * 2020-08-20 2023-10-12 Gkn Sinter Metals Engineering Gmbh Pump Arrangement
WO2024028294A1 (fr) * 2022-08-04 2024-02-08 Vitesco Technologies GmbH Pompe, en particulier pompe à huile de transmission

Also Published As

Publication number Publication date
WO2011030849A1 (fr) 2011-03-17
EP2476904A1 (fr) 2012-07-18
JP2011058441A (ja) 2011-03-24
CN102483059A (zh) 2012-05-30
EP2476904A4 (fr) 2014-04-30

Similar Documents

Publication Publication Date Title
US20120164009A1 (en) Electric pump unit
JP5493675B2 (ja) 電動モータおよびロータ
EP1566545B1 (fr) Pompe électrique à engrenage intérieur
EP2333343B1 (fr) Pompe électrique et structure d'assemblage de pompe électrique
JP2011045156A (ja) 電動モータおよびロータ
US20070014677A1 (en) Pump
JP5552831B2 (ja) 電動ポンプユニット
JP2012228075A (ja) 電動モータおよびロータ
JP2014082918A (ja) 電動モータおよび電動ポンプ
JP6255861B2 (ja) ロータおよび電動モータ
JP6084858B2 (ja) 電動ポンプ及び電動ポンプの組付方法
WO2018131403A1 (fr) Pompe à huile à entraînement électrique
JP5212147B2 (ja) 電動ポンプユニット
JP2012189011A (ja) ポンプおよび電動ポンプユニット
JP5803183B2 (ja) ポンプおよび電動ポンプユニット
JP2012026309A (ja) 電動ポンプユニット
JP5381470B2 (ja) 電動ポンプユニット
JP2001522434A (ja) 燃料のための搬送装置
JP5741159B2 (ja) 電動モータおよびロータ
JP5621406B2 (ja) 電動モータおよびロータ
JP6475041B2 (ja) 滑り軸受及び電動流体ポンプ
KR20140067345A (ko) 환경 차량의 모터 회전자 어셈블리
JP2012029454A (ja) 電動モータおよびロータ
JP2010115051A (ja) 電動モータユニット
JP2012026349A (ja) 電動ポンプユニット

Legal Events

Date Code Title Description
AS Assignment

Owner name: JTEKT CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAKATA, TAKATOSHI;REEL/FRAME:027706/0457

Effective date: 20111223

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE