EP0952352A3 - Equilibrage de poussée axiale - Google Patents

Equilibrage de poussée axiale Download PDF

Info

Publication number: EP0952352A3
Authority: EP; European Patent Office
Prior art keywords: thrust balance; fluid; balance chamber; thrust; impeller
Prior art date: 1998-04-20
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.): Granted

Application number

EP99107770A

Other languages

German (de)

English (en)

Other versions

EP0952352B1 (fr

EP0952352A2 (fr

Inventor

Yasushi c/oNikkiso Co. Ltd. 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.)

1998-04-20

Filing date

1999-04-19

Publication date

2001-05-30

1999-04-19 Application filed by Nikkiso Co Ltd filed Critical Nikkiso Co Ltd

1999-10-27 Publication of EP0952352A2 publication Critical patent/EP0952352A2/fr

2001-05-30 Publication of EP0952352A3 publication Critical patent/EP0952352A3/fr

2004-12-22 Application granted granted Critical

2004-12-22 Publication of EP0952352B1 publication Critical patent/EP0952352B1/fr

2019-04-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
- 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

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Control Of Non-Positive-Displacement Pumps (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

EP99107770A 1998-04-20 1999-04-19 Equilibrage de poussée axiale Expired - Lifetime EP0952352B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP10972098		1998-04-20
JP10972098		1998-04-20

Publications (3)

Publication Number	Publication Date
EP0952352A2 EP0952352A2 (fr)	1999-10-27
EP0952352A3 true EP0952352A3 (fr)	2001-05-30
EP0952352B1 EP0952352B1 (fr)	2004-12-22

Family

ID=14517524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP99107770A Expired - Lifetime EP0952352B1 (fr)	1998-04-20	1999-04-19	Equilibrage de poussée axiale

Country Status (5)

Country	Link
EP (1)	EP0952352B1 (fr)
KR (1)	KR100295011B1 (fr)
CN (1)	CN1120937C (fr)
DE (1)	DE69922729T2 (fr)
TW (1)	TW406166B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4281614B2 (ja) *	2004-05-10	2009-06-17	株式会社日立プラントテクノロジー	ポンプ装置
CN100368689C (zh) *	2004-09-16	2008-02-13	北京化工大学	一种用于旋转流体机械的压差式推力平衡装置
CN101113741B (zh) *	2006-07-26	2011-03-16	上海新沪电机厂有限公司	一种屏蔽泵轴向力的自动平衡装置
US8529191B2 (en) *	2009-02-06	2013-09-10	Fluid Equipment Development Company, Llc	Method and apparatus for lubricating a thrust bearing for a rotating machine using pumpage
KR101509814B1 (ko) *	2009-12-02	2015-04-06	현대자동차주식회사	임펠러의 들뜸 현상이 개선된 인라인 타입 냉각수 펌프
DE102009060549A1 (de) *	2009-12-23	2011-06-30	Wilo Se, 44263	EC-Motorkreiselpumpe
KR101700332B1 (ko) *	2015-07-29	2017-02-14	한국해양대학교 산학협력단	반경류 터빈의 추력감소 장치
ITUA20163303A1 (it) *	2016-05-10	2017-11-10	Ind Saleri Italo Spa	Gruppo pompa ad azionamento elettrico ed azionamento meccanico con girante supportata
US10801512B2 (en)	2017-05-23	2020-10-13	Vector Technologies Llc	Thrust bearing system and method for operating the same
US11085457B2 (en)	2017-05-23	2021-08-10	Fluid Equipment Development Company, Llc	Thrust bearing system and method for operating the same
CN109281861A (zh) *	2018-11-28	2019-01-29	珠海格力电器股份有限公司	一种轴向力自动平衡装置、水泵及空调器
CN114483640B (zh) *	2022-01-25	2022-10-28	威乐(中国)水泵系统有限公司	一种离心泵用叶轮和紧凑型工业制冷用泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2105485A1 (de) *	1970-08-06	1972-04-06	Nikkiso C Ltd	Axialdruckausgleichsvornchtung fur Motorpumpen
US5320482A (en) *	1992-09-21	1994-06-14	The United States Of America As Represented By The Secretary Of The Navy	Method and apparatus for reducing axial thrust in centrifugal pumps
EP0688955A1 (fr) *	1994-06-23	1995-12-27	KSB Aktiengesellschaft	Dispositif pour l'équilibrage de la poussée axiale dans les pompes centrifuges

1999
- 1999-04-14 TW TW088105939A patent/TW406166B/zh not_active IP Right Cessation
- 1999-04-14 CN CN99105578A patent/CN1120937C/zh not_active Expired - Lifetime
- 1999-04-16 KR KR1019990013435A patent/KR100295011B1/ko not_active Expired - Lifetime
- 1999-04-19 DE DE69922729T patent/DE69922729T2/de not_active Expired - Lifetime
- 1999-04-19 EP EP99107770A patent/EP0952352B1/fr not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2105485A1 (de) *	1970-08-06	1972-04-06	Nikkiso C Ltd	Axialdruckausgleichsvornchtung fur Motorpumpen
US5320482A (en) *	1992-09-21	1994-06-14	The United States Of America As Represented By The Secretary Of The Navy	Method and apparatus for reducing axial thrust in centrifugal pumps
EP0688955A1 (fr) *	1994-06-23	1995-12-27	KSB Aktiengesellschaft	Dispositif pour l'équilibrage de la poussée axiale dans les pompes centrifuges

Also Published As

Publication number	Publication date
DE69922729T2 (de)	2005-12-01
KR19990083231A (ko)	1999-11-25
EP0952352B1 (fr)	2004-12-22
EP0952352A2 (fr)	1999-10-27
CN1120937C (zh)	2003-09-10
KR100295011B1 (ko)	2001-07-12
CN1232928A (zh)	1999-10-27
DE69922729D1 (de)	2005-01-27
TW406166B (en)	2000-09-21

Legal Events

Date	Code	Title	Description
1999-09-10	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
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1999-10-27	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
2001-04-13	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
2001-05-30	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
2001-05-30	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
2001-09-26	17P	Request for examination filed	Effective date: 20010724
2002-02-20	AKX	Designation fees paid	Free format text: DE FR GB IT
2003-09-24	17Q	First examination report despatched	Effective date: 20030811
2004-06-04	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2004-10-29	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2004-11-05	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
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Publication	Publication Date	Title
EP0952352A3 (fr)	2001-05-30	Equilibrage de poussée axiale
EP0984165A3 (fr)	2000-09-20	Pompe
EP0974753A3 (fr)	2000-10-04	Pompe à pistons axiaux
EP0947212A3 (fr)	2000-05-31	Adaptateur en "Y" sans aiguille à auto-amorçage
MY124075A (en)	2006-06-30	Improvements relating to froth pumps
WO2001020126A3 (fr)	2001-09-27	Systeme ameliorant la circulation des fluides dans un puits
ZA961552B (en)	1996-09-03	Centrifugal pump
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WO2001083009A3 (fr)	2002-03-07	Dispositif anti-ecoulement libre pour chambre compte-gouttes
EP0377223A3 (fr)	1992-05-13	Pompe centrifuge spécialement pour aquariums
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WO2005040615A3 (fr)	2005-06-16	Pompe a vide
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WO2003081045A8 (fr)	2004-03-18	Micropompe sans soupape
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EP0780086A3 (fr)	1998-07-15	Conduit d'amenée d'eau avec reservoir
EP0843093A3 (fr)	1999-12-15	Dispositif d'alimentation d'huile pour un compresseur