EP4641016A4 - Pompe centrifuge - Google Patents

Pompe centrifuge

Info

Publication number: EP4641016A4
Authority: EP; European Patent Office
Prior art keywords: centrifugal pump; centrifugal; pump
Prior art date: 2023-02-28
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

EP23925428.7A

Other languages

German (de)

English (en)

Other versions

EP4641016A1 (fr

Inventor

Yasushi Kubota

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.)

Nikkiso Co Ltd

Original Assignee

Nikkiso Co 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.)

2023-02-28

Filing date

2023-12-20

Publication date

2026-04-15

2023-12-20 Application filed by Nikkiso Co Ltd filed Critical Nikkiso Co Ltd

2025-10-29 Publication of EP4641016A1 publication Critical patent/EP4641016A1/fr

2026-04-15 Publication of EP4641016A4 publication Critical patent/EP4641016A4/fr

Status 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
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0416—Axial thrust balancing balancing pistons
- 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
- 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
- F04D1/08—Multi-stage pumps the stages being situated concentrically
- 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
- 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
- F04D29/40—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

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)

EP23925428.7A 2023-02-28 2023-12-20 Pompe centrifuge Pending EP4641016A4 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2023029524A JP7576643B2 (ja)	2023-02-28	2023-02-28	遠心ポンプ
PCT/JP2023/045733 WO2024180878A1 (fr)	2023-02-28	2023-12-20	Pompe centrifuge

Publications (2)

Publication Number	Publication Date
EP4641016A1 EP4641016A1 (fr)	2025-10-29
EP4641016A4 true EP4641016A4 (fr)	2026-04-15

Family

ID=92590272

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP23925428.7A Pending EP4641016A4 (fr)	2023-02-28	2023-12-20	Pompe centrifuge

Country Status (7)

Country	Link
US (1)	US20260117790A1 (fr)
EP (1)	EP4641016A4 (fr)
JP (1)	JP7576643B2 (fr)
KR (1)	KR20250124385A (fr)
CN (1)	CN120604041B (fr)
TW (1)	TWI883744B (fr)
WO (1)	WO2024180878A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5669496A (en) *	1979-11-12	1981-06-10	Hitachi Ltd	Two-stage turbine pump
US20070280823A1 (en) *	2005-12-16	2007-12-06	Yuji Kanemori	Seal device for a fluid machine
US20170107996A1 (en) *	2015-10-14	2017-04-20	Sulzer Management Ag	Pump for conveying a highly viscous fluid

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2698666B1 (fr) *	1992-11-30	1995-02-17	Europ Propulsion	Pompe centrifuge hautement performante à rouet ouvert.
KR100368915B1 (ko)	2000-09-16	2003-01-24	주식회사 바우테크놀로지	방청제 제조방법
JP2002021766A (ja)	2001-06-08	2002-01-23	Ebara Corp	ポンプ組立体
US9856886B2 (en) *	2015-01-08	2018-01-02	Honeywell International Inc.	Multistage radial compressor baffle
JP2016194252A (ja) *	2015-03-31	2016-11-17	株式会社豊田自動織機	遠心圧縮機
CN205446053U (zh) *	2015-12-30	2016-08-10	河南博奥泵业有限公司	使用寿命长的双级加压泵
CN215672726U (zh) *	2021-09-17	2022-01-28	河南郑泵科技有限公司	水平中开式双壳体高扬程多级渣浆泵

2023
- 2023-02-28 JP JP2023029524A patent/JP7576643B2/ja active Active
- 2023-12-20 KR KR1020257025417A patent/KR20250124385A/ko active Pending
- 2023-12-20 EP EP23925428.7A patent/EP4641016A4/fr active Pending
- 2023-12-20 US US19/151,456 patent/US20260117790A1/en active Pending
- 2023-12-20 CN CN202380092753.7A patent/CN120604041B/zh active Active
- 2023-12-20 WO PCT/JP2023/045733 patent/WO2024180878A1/fr not_active Ceased
- 2023-12-27 TW TW112151096A patent/TWI883744B/zh active

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5669496A (en) *	1979-11-12	1981-06-10	Hitachi Ltd	Two-stage turbine pump
US20070280823A1 (en) *	2005-12-16	2007-12-06	Yuji Kanemori	Seal device for a fluid machine
US20170107996A1 (en) *	2015-10-14	2017-04-20	Sulzer Management Ag	Pump for conveying a highly viscous fluid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024180878A1 *

Also Published As

Publication number	Publication date
US20260117790A1 (en)	2026-04-30
WO2024180878A1 (fr)	2024-09-06
KR20250124385A (ko)	2025-08-19
CN120604041A (zh)	2025-09-05
JP2024122145A (ja)	2024-09-09
TWI883744B (zh)	2025-05-11
JP7576643B2 (ja)	2024-10-31
CN120604041B (zh)	2026-04-14
EP4641016A1 (fr)	2025-10-29
TW202436761A (zh)	2024-09-16

Legal Events

Date	Code	Title	Description
2024-09-07	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2025-09-26	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2025-09-26	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2025-10-29	17P	Request for examination filed	Effective date: 20250724
2025-10-29	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
2026-04-15	A4	Supplementary search report drawn up and despatched	Effective date: 20260316
2026-04-15	RIC1	Information provided on ipc code assigned before grant	Ipc: F04D 1/08 20060101AFI20260310BHEP Ipc: F04D 29/041 20060101ALI20260310BHEP

Publication	Publication Date	Title
DK3914310T3 (da)	2022-11-28	Blodpumpe
EP4302880A4 (fr)	2025-03-26	Ensemble pompe
JP1769720S (ja)	2024-05-02	搾乳器
EP4477893A4 (fr)	2026-04-22	Unité pompe
EP4397865A4 (fr)	2025-12-17	Motopompe
EP4143441C0 (fr)	2025-08-20	Ensemble pompe centrifuge
EP4374970A4 (fr)	2025-07-23	Ensemble pompe
EP4215753A4 (fr)	2024-10-02	Pompe sanguine centrifuge
EP4063655A4 (fr)	2022-12-28	Pompe
EP3978760C0 (fr)	2024-08-28	Pompe centrifuge submersible
EP3821131A4 (fr)	2022-03-30	Pompe centrifuge
KR102303918B9 (ko)	2022-10-12	원심형 수중펌프
EP4277691A4 (fr)	2024-12-04	Pompe à sang centrifuge améliorée
EP4641016A4 (fr)	2026-04-15	Pompe centrifuge
EP3889437C0 (fr)	2025-08-13	Roue à aubes de pompe centrifuge
EP4198319C0 (fr)	2025-11-19	Ensemble pompe
KR102392575B9 (ko)	2023-03-23	펌프용 조립식 임펠러
EP4397864A4 (fr)	2025-08-06	Motopompe
EP4337867C0 (fr)	2025-07-02	Pompe centrifuge
KR102226969B9 (ko)	2021-09-17	펌프
JP1807206S (ja)	2025-08-27	遠心ポンプ
JP1806358S (ja)	2025-08-19	遠心ポンプ
EP4001681A4 (fr)	2022-09-07	Pompe
EP3938656A4 (fr)	2022-09-07	Pompe péristaltique
JP1773572S (ja)	2024-06-20	ポンプ