EP1158174A3 - Centrifugal pump with magnetic coupling - Google Patents

Centrifugal pump with magnetic coupling Download PDF

Info

Publication number
EP1158174A3
EP1158174A3 EP01108334A EP01108334A EP1158174A3 EP 1158174 A3 EP1158174 A3 EP 1158174A3 EP 01108334 A EP01108334 A EP 01108334A EP 01108334 A EP01108334 A EP 01108334A EP 1158174 A3 EP1158174 A3 EP 1158174A3
Authority
EP
European Patent Office
Prior art keywords
shaft
rotor
plate
sleeve
back face
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
Application number
EP01108334A
Other languages
German (de)
French (fr)
Other versions
EP1158174B1 (en
EP1158174A2 (en
Inventor
Ulrich Rennett
Manfred Sett
Alfred Mersch
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.)
ITT Manufacturing Enterprises LLC
Original Assignee
Richter Chemie Technik GmbH
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 Richter Chemie Technik GmbH filed Critical Richter Chemie Technik GmbH
Priority to EP06015105A priority Critical patent/EP1719914B1/en
Publication of EP1158174A2 publication Critical patent/EP1158174A2/en
Publication of EP1158174A3 publication Critical patent/EP1158174A3/en
Application granted granted Critical
Publication of EP1158174B1 publication Critical patent/EP1158174B1/en
Anticipated expiration legal-status Critical
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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026—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
    • 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
    • F04D29/0465—Ceramic bearing designs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The pump has a housing plate having a front face and a back face, a housing can fixed to the plate and defining a chamber on the back face, a bearing sleeve in the can fixed to the plate and extending rearward from the back face along an axis, and a rotor shaft extending axially through the sleeve and having a front end and a rear end. Bearings support the rotor shaft in the sleeve for rotation about the axis. The shaft has an outer surface spaced a predetermined inner radial distance from an inside surface of the bearing sleeve. An impeller is carried on the rotor-shaft front end in a pump chamber at the front face of the housing plate. A rotor body fixed to the shaft rear end extends axially forward in the can around the bearing sleeve. The rotor body has an outer surface spaced a predetermined outer radial distance from an inside surface of the can. The inner radial dimension is smaller than the outer radial dimension.
EP01108334A 2000-05-22 2001-04-03 Centrifugal pump with magnetic coupling Expired - Lifetime EP1158174B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06015105A EP1719914B1 (en) 2000-05-22 2001-04-03 Centrifugal pump with magnetic coupling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10024953 2000-05-22
DE10024953A DE10024953A1 (en) 2000-05-22 2000-05-22 Centrifugal pump with magnetic coupling

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP06015105A Division EP1719914B1 (en) 2000-05-22 2001-04-03 Centrifugal pump with magnetic coupling

Publications (3)

Publication Number Publication Date
EP1158174A2 EP1158174A2 (en) 2001-11-28
EP1158174A3 true EP1158174A3 (en) 2005-09-07
EP1158174B1 EP1158174B1 (en) 2007-03-14

Family

ID=7642885

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06015105A Expired - Lifetime EP1719914B1 (en) 2000-05-22 2001-04-03 Centrifugal pump with magnetic coupling
EP01108334A Expired - Lifetime EP1158174B1 (en) 2000-05-22 2001-04-03 Centrifugal pump with magnetic coupling

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06015105A Expired - Lifetime EP1719914B1 (en) 2000-05-22 2001-04-03 Centrifugal pump with magnetic coupling

Country Status (4)

Country Link
US (1) US6554576B2 (en)
EP (2) EP1719914B1 (en)
AT (2) ATE356937T1 (en)
DE (3) DE10024953A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8337166B2 (en) * 2001-11-26 2012-12-25 Shurflo, Llc Pump and pump control circuit apparatus and method
DE10221843B4 (en) * 2002-05-16 2004-12-30 Minebea Co., Ltd. Electric motor for use as a pump motor and pump
BR112012003841A2 (en) * 2009-08-19 2017-08-08 Hoffman Enclosures Inc D/Ba Pentair Technical Products magnetic motor pump assembly with integrated motor
DE102009052856B3 (en) * 2009-11-11 2010-09-09 Leistritz Ag Pump i.e. screw pump, has magnetic clutch provided with rotor shaft that is rotatably supported by pump housing, and suction chamber and slit pot connected with each other over line by fluid
EP2554859B1 (en) * 2010-03-29 2017-03-22 NTN Corporation Fluid dynamic bearing unit and assembly method for same
CN102465884A (en) * 2010-11-17 2012-05-23 黄佳华 Vertical magnetic drive slurry pump
DE102011114191A1 (en) 2011-09-22 2013-03-28 Eagleburgmann Germany Gmbh & Co. Kg Slit pot for a magnetic coupling with improved fluid flow
TW201317459A (en) * 2011-10-26 2013-05-01 Assoma Inc Permanent magnet canned pump structure improvement
US20140271270A1 (en) * 2013-03-12 2014-09-18 Geotek Energy, Llc Magnetically coupled expander pump with axial flow path
DE102013007849A1 (en) * 2013-05-08 2014-11-13 Ksb Aktiengesellschaft pump assembly
DE102014006568A1 (en) * 2013-05-08 2014-11-13 Ksb Aktiengesellschaft Pump arrangement and method for producing a split pot of the pump assembly
CN103410739B (en) * 2013-07-24 2016-09-21 黄佳华 Vertical submerged multiple-set slag-pulp magnetic drive pump
CN104776033B (en) * 2014-01-14 2017-09-15 高涵文 A kind of magnetic drive pump of corrosion-resistant anti-dry grinding
US9771938B2 (en) 2014-03-11 2017-09-26 Peopleflo Manufacturing, Inc. Rotary device having a radial magnetic coupling
US9920764B2 (en) 2015-09-30 2018-03-20 Peopleflo Manufacturing, Inc. Pump devices
CN110873061B (en) * 2018-08-29 2023-08-01 广东德昌电机有限公司 Pump body and method for manufacturing rotor assembly for pump body
DE202019101723U1 (en) * 2019-03-26 2020-06-29 Meßner GmbH & Co. KG Pond pump
KR102484602B1 (en) * 2020-11-23 2023-01-06 주식회사 코아비스 Electric water pump
DE102020132907A1 (en) 2020-12-10 2022-06-15 Eagleburgmann Germany Gmbh & Co. Kg Magnetic clutch with improved cooling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB922319A (en) * 1960-03-28 1963-03-27 Klaus Franz Centrifugal pump
DE3715484A1 (en) * 1987-05-09 1988-11-17 Klaus Union Armaturen MAGNETIC PUMP DRIVE
EP0398175A1 (en) * 1989-05-13 1990-11-22 RHEINHÜTTE GMBH & CO. Magnetically coupled pump
DE9316897U1 (en) * 1993-11-04 1994-07-28 Renner GmbH, 75433 Maulbronn Magnetic pump with overheating protection
US5944489A (en) * 1996-12-11 1999-08-31 Crane Co. Rotary fluid pump

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420184A (en) * 1967-05-17 1969-01-07 Julius L Englesberg Pump employing magnetic drive
DE2639540A1 (en) * 1976-09-02 1978-03-09 Grundfos As Plain bearing sleeve for circulation pump shafts - has diametrically opposite overlapping grooves for access of liquid for lubricating
DE2752249B2 (en) * 1977-11-23 1979-09-27 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Protective device for pumps
JPS6352992U (en) * 1986-09-25 1988-04-09
DE8717855U1 (en) * 1987-02-14 1990-09-27 Richter Chemie Technik GmbH, 47906 Kempen Leak detection device for a magnetic centrifugal pump
EP0308372B1 (en) * 1987-09-15 1991-04-03 Bieri Pumpenbau Ag Circulation pump, particularly for hot water systems
EP0431332B1 (en) * 1989-11-08 1995-11-02 Sanwa Tokushu Seiko Co., Ltd. Magnetically driven pump
US5184945A (en) * 1991-12-27 1993-02-09 Assoma, Inc. Bushing structure for using in magnetically driving centrifugal pumps
DE4212982C2 (en) * 1992-04-18 1996-04-11 Lederle Pumpen & Maschf Pump for hot fluids

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB922319A (en) * 1960-03-28 1963-03-27 Klaus Franz Centrifugal pump
DE3715484A1 (en) * 1987-05-09 1988-11-17 Klaus Union Armaturen MAGNETIC PUMP DRIVE
EP0398175A1 (en) * 1989-05-13 1990-11-22 RHEINHÜTTE GMBH & CO. Magnetically coupled pump
DE9316897U1 (en) * 1993-11-04 1994-07-28 Renner GmbH, 75433 Maulbronn Magnetic pump with overheating protection
US5944489A (en) * 1996-12-11 1999-08-31 Crane Co. Rotary fluid pump

Also Published As

Publication number Publication date
US6554576B2 (en) 2003-04-29
DE50115684D1 (en) 2010-12-09
EP1158174B1 (en) 2007-03-14
ATE486219T1 (en) 2010-11-15
EP1719914A3 (en) 2006-11-15
DE50112181D1 (en) 2007-04-26
EP1158174A2 (en) 2001-11-28
DE10024953A1 (en) 2001-11-29
ATE356937T1 (en) 2007-04-15
EP1719914A2 (en) 2006-11-08
US20010043865A1 (en) 2001-11-22
EP1719914B1 (en) 2010-10-27

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