EP4023886A4 - Pump device - Google Patents

Pump device Download PDF

Info

Publication number
EP4023886A4
EP4023886A4 EP20856233.0A EP20856233A EP4023886A4 EP 4023886 A4 EP4023886 A4 EP 4023886A4 EP 20856233 A EP20856233 A EP 20856233A EP 4023886 A4 EP4023886 A4 EP 4023886A4
Authority
EP
European Patent Office
Prior art keywords
pump device
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.)
Pending
Application number
EP20856233.0A
Other languages
German (de)
French (fr)
Other versions
EP4023886A1 (en
Inventor
Masakazu Komai
Kazuya HIRAMOTO
Kaoru Yagi
Seiichiro Yamada
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 EP4023886A1 publication Critical patent/EP4023886A1/en
Publication of EP4023886A4 publication Critical patent/EP4023886A4/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
    • 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
    • F04D13/0686—Mechanical details of the pump control unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
EP20856233.0A 2019-08-26 2020-08-26 Pump device Pending EP4023886A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019153911A JP2021032163A (en) 2019-08-26 2019-08-26 Pump device
PCT/JP2020/032112 WO2021039819A1 (en) 2019-08-26 2020-08-26 Pump device

Publications (2)

Publication Number Publication Date
EP4023886A1 EP4023886A1 (en) 2022-07-06
EP4023886A4 true EP4023886A4 (en) 2023-09-20

Family

ID=74678046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20856233.0A Pending EP4023886A4 (en) 2019-08-26 2020-08-26 Pump device

Country Status (5)

Country Link
US (1) US20220275804A1 (en)
EP (1) EP4023886A4 (en)
JP (1) JP2021032163A (en)
CN (1) CN114270048A (en)
WO (1) WO2021039819A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621882A (en) * 1970-02-25 1971-11-23 Harry P Kupiec Inline, through-flow pressure compensator and accumulator
EP0831236B1 (en) * 1996-09-24 2003-06-18 Wilo Ag Motor pump with cooled frequency converter
EP0987441B1 (en) * 1998-09-15 2003-12-10 Wilo Ag Tube pump
JP2005171880A (en) * 2003-12-11 2005-06-30 Shin Meiwa Ind Co Ltd Submerged pump system
US20110027077A1 (en) * 2009-07-31 2011-02-03 Baker Hughes Incorporated Shaftless centrifugal pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316849A (en) * 1965-07-15 1967-05-02 Donald H Cooper Self-priming, direct current pump-motor
JPH05332282A (en) 1992-06-01 1993-12-14 Ebara Corp Inline pump
JP3326918B2 (en) * 1993-11-12 2002-09-24 株式会社日立製作所 Submersible variable speed pump
US7407371B2 (en) * 2003-10-29 2008-08-05 Michele Leone Centrifugal multistage pump
JP5048419B2 (en) * 2007-08-10 2012-10-17 株式会社荏原製作所 Pump device
JP5909124B2 (en) * 2012-03-26 2016-04-26 株式会社クボタ Method for manufacturing column-type submersible pump
JP6802203B2 (en) 2018-03-02 2020-12-16 日本電信電話株式会社 Communication system and communication method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621882A (en) * 1970-02-25 1971-11-23 Harry P Kupiec Inline, through-flow pressure compensator and accumulator
EP0831236B1 (en) * 1996-09-24 2003-06-18 Wilo Ag Motor pump with cooled frequency converter
EP0987441B1 (en) * 1998-09-15 2003-12-10 Wilo Ag Tube pump
JP2005171880A (en) * 2003-12-11 2005-06-30 Shin Meiwa Ind Co Ltd Submerged pump system
US20110027077A1 (en) * 2009-07-31 2011-02-03 Baker Hughes Incorporated Shaftless centrifugal pump

Also Published As

Publication number Publication date
EP4023886A1 (en) 2022-07-06
CN114270048A (en) 2022-04-01
JP2021032163A (en) 2021-03-01
US20220275804A1 (en) 2022-09-01
WO2021039819A1 (en) 2021-03-04

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