EP4397864A4 - MOTOR PUMP - Google Patents

MOTOR PUMP

Info

Publication number
EP4397864A4
EP4397864A4 EP22863954.8A EP22863954A EP4397864A4 EP 4397864 A4 EP4397864 A4 EP 4397864A4 EP 22863954 A EP22863954 A EP 22863954A EP 4397864 A4 EP4397864 A4 EP 4397864A4
Authority
EP
European Patent Office
Prior art keywords
motor pump
pump
motor
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.)
Pending
Application number
EP22863954.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4397864A1 (en
Inventor
Yasutaka Konishi
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.)
Ebara Corp
Original Assignee
Ebara 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 Ebara Corp filed Critical Ebara Corp
Publication of EP4397864A1 publication Critical patent/EP4397864A1/en
Publication of EP4397864A4 publication Critical patent/EP4397864A4/en
Pending 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06—Multi-stage pumps
    • F04D1/063—Multi-stage pumps of the vertically split casing type
    • F04D1/066—Multi-stage pumps of the vertically split casing type the casing consisting of a plurality of annuli bolted together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/064—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0646—Units comprising pumps and their driving means the pump being electrically driven the hollow pump or motor shaft being the conduit for the working fluid
    • 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
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • 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
    • 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
    • F04D29/0473—Bearings hydrostatic; hydrodynamic for radial 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
    • F04D29/08—Sealings
    • F04D29/086—Sealings 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F05D2240/00—Components
    • F05D2240/50—Bearings

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)
EP22863954.8A 2021-09-03 2022-05-27 MOTOR PUMP Pending EP4397864A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021143964 2021-09-03
PCT/JP2022/021701 WO2023032366A1 (ja) 2021-09-03 2022-05-27 モータポンプ

Publications (2)

Publication Number Publication Date
EP4397864A1 EP4397864A1 (en) 2024-07-10
EP4397864A4 true EP4397864A4 (en) 2025-08-06

Family

ID=85411153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22863954.8A Pending EP4397864A4 (en) 2021-09-03 2022-05-27 MOTOR PUMP

Country Status (6)

Country Link
EP (1) EP4397864A4 (https=)
JP (1) JPWO2023032366A1 (https=)
KR (1) KR20240051237A (https=)
CN (1) CN117881896A (https=)
TW (1) TW202311631A (https=)
WO (1) WO2023032366A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3162800A1 (fr) * 2024-06-04 2025-12-05 Valeo Systemes Thermiques Pompe centrifuge à efficacité améliorée

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149253A (en) * 1989-06-05 1992-09-22 Ebara Corporation Magnet pumps
JPH06315245A (ja) * 1993-04-27 1994-11-08 Japan Servo Co Ltd キャンドモータポンプの永久磁石回転子
US6254361B1 (en) * 1999-07-29 2001-07-03 Itt Manufacturing Enterprises, Inc. Shaftless canned rotor inline pipe pump
CN1711423A (zh) * 2002-11-05 2005-12-21 Bsh博施及西门子家用器具有限公司 电动泵
CN107605755A (zh) * 2017-09-14 2018-01-19 合肥恒大江海泵业股份有限公司 一种叶轮内置式混流潜水电泵
US20180258944A1 (en) * 2017-03-08 2018-09-13 Mahle International Gmbh Liquid pump
EP3617517A1 (en) * 2018-08-29 2020-03-04 Johnson Electric International AG Electric coolant pump and manufacturing method for movable unit of the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4059416B2 (ja) 1999-04-20 2008-03-12 英男 林 一体型モータポンプ
JP2001241396A (ja) * 2000-02-29 2001-09-07 Ebara Corp 多段モータポンプ
JP4774574B2 (ja) * 2000-04-17 2011-09-14 パナソニック電工株式会社 ポンプ
JP2002138986A (ja) * 2000-11-07 2002-05-17 Ebara Corp モータポンプ
JP2008215307A (ja) * 2007-03-07 2008-09-18 Ikutoku Gakuen 一体型モータポンプ
JP6948198B2 (ja) * 2017-09-22 2021-10-13 株式会社荏原製作所 遠心ポンプ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149253A (en) * 1989-06-05 1992-09-22 Ebara Corporation Magnet pumps
JPH06315245A (ja) * 1993-04-27 1994-11-08 Japan Servo Co Ltd キャンドモータポンプの永久磁石回転子
US6254361B1 (en) * 1999-07-29 2001-07-03 Itt Manufacturing Enterprises, Inc. Shaftless canned rotor inline pipe pump
CN1711423A (zh) * 2002-11-05 2005-12-21 Bsh博施及西门子家用器具有限公司 电动泵
US20180258944A1 (en) * 2017-03-08 2018-09-13 Mahle International Gmbh Liquid pump
CN107605755A (zh) * 2017-09-14 2018-01-19 合肥恒大江海泵业股份有限公司 一种叶轮内置式混流潜水电泵
EP3617517A1 (en) * 2018-08-29 2020-03-04 Johnson Electric International AG Electric coolant pump and manufacturing method for movable unit of the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023032366A1 *

Also Published As

Publication number Publication date
KR20240051237A (ko) 2024-04-19
CN117881896A (zh) 2024-04-12
JPWO2023032366A1 (https=) 2023-03-09
EP4397864A1 (en) 2024-07-10
TW202311631A (zh) 2023-03-16
WO2023032366A1 (ja) 2023-03-09

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