EP0952352A3 - Thrust-balancing device - Google Patents
Thrust-balancing device Download PDFInfo
- Publication number
- EP0952352A3 EP0952352A3 EP99107770A EP99107770A EP0952352A3 EP 0952352 A3 EP0952352 A3 EP 0952352A3 EP 99107770 A EP99107770 A EP 99107770A EP 99107770 A EP99107770 A EP 99107770A EP 0952352 A3 EP0952352 A3 EP 0952352A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- thrust balance
- fluid
- balance chamber
- thrust
- impeller
- 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.)
- Granted
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)
Abstract
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 (en) | 1999-10-27 |
EP0952352A3 true EP0952352A3 (en) | 2001-05-30 |
EP0952352B1 EP0952352B1 (en) | 2004-12-22 |
Family
ID=14517524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99107770A Expired - Lifetime EP0952352B1 (en) | 1998-04-20 | 1999-04-19 | Thrust-balancing device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0952352B1 (en) |
KR (1) | KR100295011B1 (en) |
CN (1) | CN1120937C (en) |
DE (1) | DE69922729T2 (en) |
TW (1) | TW406166B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4281614B2 (en) * | 2004-05-10 | 2009-06-17 | 株式会社日立プラントテクノロジー | Pump device |
CN100368689C (en) * | 2004-09-16 | 2008-02-13 | 北京化工大学 | Differential thrust balance device for rotary fluid machinery |
CN101113741B (en) * | 2006-07-26 | 2011-03-16 | 上海新沪电机厂有限公司 | Automatic balance device for shielding force at direction of pump spindle |
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 (en) * | 2009-12-02 | 2015-04-06 | 현대자동차주식회사 | Cooling water pump having improved impeller struture |
DE102009060549A1 (en) * | 2009-12-23 | 2011-06-30 | Wilo Se, 44263 | EC motor centrifugal pump |
KR101700332B1 (en) | 2015-07-29 | 2017-02-14 | 한국해양대학교 산학협력단 | Apparatus for Decreasing Thrust of Radial Inflow Turbine |
ITUA20163303A1 (en) * | 2016-05-10 | 2017-11-10 | Ind Saleri Italo Spa | PUMP UNIT WITH ELECTRIC DRIVE AND MECHANICAL DRIVE WITH SUPPORTED IMPELLER |
US11085457B2 (en) | 2017-05-23 | 2021-08-10 | Fluid Equipment Development Company, Llc | Thrust bearing system and method for operating the same |
US10801512B2 (en) | 2017-05-23 | 2020-10-13 | Vector Technologies Llc | Thrust bearing system and method for operating the same |
CN109281861A (en) * | 2018-11-28 | 2019-01-29 | 珠海格力电器股份有限公司 | Axial force automatic balancing device, water pump and air conditioner |
CN114483640B (en) * | 2022-01-25 | 2022-10-28 | 威乐(中国)水泵***有限公司 | Impeller for centrifugal pump and compact industrial refrigeration pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2105485A1 (en) * | 1970-08-06 | 1972-04-06 | Nikkiso C Ltd | Axial pressure compensation device for motor pumps |
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 (en) * | 1994-06-23 | 1995-12-27 | KSB Aktiengesellschaft | Device for the compensation of axial thrust in centrifugal pumps |
-
1999
- 1999-04-14 CN CN99105578A patent/CN1120937C/en not_active Expired - Lifetime
- 1999-04-14 TW TW088105939A patent/TW406166B/en not_active IP Right Cessation
- 1999-04-16 KR KR1019990013435A patent/KR100295011B1/en not_active IP Right Cessation
- 1999-04-19 DE DE69922729T patent/DE69922729T2/en not_active Expired - Lifetime
- 1999-04-19 EP EP99107770A patent/EP0952352B1/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2105485A1 (en) * | 1970-08-06 | 1972-04-06 | Nikkiso C Ltd | Axial pressure compensation device for motor pumps |
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 (en) * | 1994-06-23 | 1995-12-27 | KSB Aktiengesellschaft | Device for the compensation of axial thrust in centrifugal pumps |
Also Published As
Publication number | Publication date |
---|---|
KR100295011B1 (en) | 2001-07-12 |
DE69922729T2 (en) | 2005-12-01 |
CN1232928A (en) | 1999-10-27 |
DE69922729D1 (en) | 2005-01-27 |
TW406166B (en) | 2000-09-21 |
KR19990083231A (en) | 1999-11-25 |
CN1120937C (en) | 2003-09-10 |
EP0952352A2 (en) | 1999-10-27 |
EP0952352B1 (en) | 2004-12-22 |
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