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EP2565376A3 - Electric pump unit - Google Patents

Electric pump unit Download PDF

Info

Publication number
EP2565376A3
EP2565376A3 EP12182426.2A EP12182426A EP2565376A3 EP 2565376 A3 EP2565376 A3 EP 2565376A3 EP 12182426 A EP12182426 A EP 12182426A EP 2565376 A3 EP2565376 A3 EP 2565376A3
Authority
EP
European Patent Office
Prior art keywords
pump
bearing
housing
motor
motor shaft
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.)
Withdrawn
Application number
EP12182426.2A
Other languages
German (de)
French (fr)
Other versions
EP2565376A2 (en
Inventor
Nobutsuna Motohashi
Takafumi Uemoto
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
Publication of EP2565376A2 publication Critical patent/EP2565376A2/en
Publication of EP2565376A3 publication Critical patent/EP2565376A3/en
Withdrawn legal-status Critical Current

Links

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
    • F04C2/10—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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/02—Arrangements of bearings
    • 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
    • F04C2240/50—Bearings
    • F04C2240/52—Bearings for assemblies with supports on both sides
    • 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
    • F04C2240/80—Other components
    • F04C2240/808—Electronic circuits (e.g. inverters) installed inside the machine

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

An electric pump unit including a pump body (6) formed of a pump housing (8) and a pump plate (9) provided in front of the pump housing. A motor housing (7) is fixed to a rear end of the pump housing (8), and accommodates a pump driving electric motor (4). A bearing device (17) that supports a motor shaft (18) includes a first bearing (21) that is arranged in a closed-end hole (9b) formed in a rear face of the pump plate (9) and supporting a front end portion of the motor shaft (18), and a second bearing (22) that is arranged radially inward of a cylindrical bearing support portion formed in the pump housing (8) and extending inside the motor housing (7) and that supports a middle portion of the motor shaft (18). A pump rotor (12) is arranged between the first bearing (21) and the second bearing (22).
EP12182426.2A 2011-08-31 2012-08-30 Electric pump unit Withdrawn EP2565376A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011188291 2011-08-31
JP2012019831A JP6056149B2 (en) 2011-08-31 2012-02-01 Electric pump unit and manufacturing method thereof

Publications (2)

Publication Number Publication Date
EP2565376A2 EP2565376A2 (en) 2013-03-06
EP2565376A3 true EP2565376A3 (en) 2014-12-17

Family

ID=46801339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12182426.2A Withdrawn EP2565376A3 (en) 2011-08-31 2012-08-30 Electric pump unit

Country Status (4)

Country Link
US (1) US20130052058A1 (en)
EP (1) EP2565376A3 (en)
JP (1) JP6056149B2 (en)
CN (1) CN102966542A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9810223B2 (en) 2012-09-20 2017-11-07 Asmo Co., Ltd. Electric pump
JP6248487B2 (en) * 2013-09-12 2017-12-20 株式会社ジェイテクト Electric pump device
KR102118028B1 (en) * 2013-11-19 2020-06-02 엘지이노텍 주식회사 Electric pump
US11015585B2 (en) * 2014-05-01 2021-05-25 Ghsp, Inc. Submersible pump assembly
DE102014111721A1 (en) 2014-08-18 2016-02-18 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Fluidbeaufschlagungsvorrichtung for a transmission for a motor vehicle
EP3062142B1 (en) 2015-02-26 2018-10-03 Nokia Technologies OY Apparatus for a near-eye display
JP6429987B2 (en) * 2015-03-02 2018-11-28 三菱電機株式会社 Rotary compressor
JP6597091B2 (en) * 2015-09-11 2019-10-30 アイシン精機株式会社 Electric pump and manufacturing method thereof
DE202015105244U1 (en) * 2015-10-05 2017-01-09 Ebm-Papst St. Georgen Gmbh & Co. Kg Pump-motor unit
DE102016214762A1 (en) * 2016-08-09 2018-02-15 Robert Bosch Gmbh External gear unit
JP2019203390A (en) * 2018-05-21 2019-11-28 Ntn株式会社 Motor oil pump
DE102018212145A1 (en) * 2018-07-20 2020-01-23 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Electric motor and pump with such an electric motor
JP7281687B2 (en) * 2019-03-28 2023-05-26 ニデックパワートレインシステムズ株式会社 electric oil pump
JP7388124B2 (en) * 2019-10-23 2023-11-29 株式会社ジェイテクト electric oil pump device
JP2021085405A (en) * 2019-11-29 2021-06-03 株式会社アイシン Oil pump
US12059775B2 (en) * 2019-12-19 2024-08-13 Black & Decker Inc. Power tool with compact motor assembly
US11705778B2 (en) * 2019-12-19 2023-07-18 Black & Decker Inc. Power tool with compact motor assembly
DE102021116460A1 (en) * 2021-06-25 2022-12-29 Bühler Motor GmbH Bearing arrangement for a pump motor
KR20230090607A (en) * 2021-12-15 2023-06-22 엘지이노텍 주식회사 Pump
DE102023105504A1 (en) * 2023-03-07 2024-09-12 Eberspächer Climate Control Systems GmbH Gear pump
GB2632731A (en) 2023-08-17 2025-02-19 Hangzhou Quadrant Tech Co Ltd Integrated electric oil pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1717443A1 (en) * 2004-02-16 2006-11-02 JTEKT Corporation Motor-driven pump unit
US20060292025A1 (en) * 2002-12-24 2006-12-28 Takatoshi Sakata Electric internal gear pump
JP2010116914A (en) * 2008-10-14 2010-05-27 Jtekt Corp Electric pump unit
US20110135516A1 (en) * 2009-12-03 2011-06-09 Denso Corporation Electric pump

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145329A (en) * 1990-06-29 1992-09-08 Eaton Corporation Homoplanar brushless electric gerotor
JP2002180975A (en) * 2000-12-07 2002-06-26 Koyo Seiko Co Ltd Electric gear pump
JP2003278670A (en) * 2002-03-22 2003-10-02 Aisin Seiki Co Ltd Electric oil pump
JP2004204695A (en) * 2002-12-24 2004-07-22 Koyo Seiko Co Ltd Electric inscribed gear pump
JP2004204694A (en) * 2002-12-24 2004-07-22 Koyo Seiko Co Ltd Electric inscribed gear pump
JP4003674B2 (en) * 2003-03-17 2007-11-07 株式会社ジェイテクト Electric internal gear pump
JP4042050B2 (en) * 2003-05-28 2008-02-06 アイシン精機株式会社 Electric pump
JP2005098268A (en) * 2003-09-26 2005-04-14 Koyo Seiko Co Ltd Electric internal gear pump
JP4811092B2 (en) * 2006-04-03 2011-11-09 株式会社アドヴィックス Pump device
JP4678324B2 (en) * 2006-04-10 2011-04-27 株式会社豊田自動織機 Electric pump
JP2010007516A (en) * 2008-06-25 2010-01-14 Hitachi Ltd Electric oil pump
CN201934327U (en) * 2011-02-10 2011-08-17 合肥三益江海泵业有限公司 Submerged axial-flow electric pump of planetary reduction gearbox with self-circulating cooling function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060292025A1 (en) * 2002-12-24 2006-12-28 Takatoshi Sakata Electric internal gear pump
EP1717443A1 (en) * 2004-02-16 2006-11-02 JTEKT Corporation Motor-driven pump unit
JP2010116914A (en) * 2008-10-14 2010-05-27 Jtekt Corp Electric pump unit
US20110135516A1 (en) * 2009-12-03 2011-06-09 Denso Corporation Electric pump

Also Published As

Publication number Publication date
US20130052058A1 (en) 2013-02-28
JP6056149B2 (en) 2017-01-11
JP2013064395A (en) 2013-04-11
CN102966542A (en) 2013-03-13
EP2565376A2 (en) 2013-03-06

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Effective date: 20150320