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특허 상세정보

Magnetic-drive assembly for a multistage centrifugal pump

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F04B-017/00   
미국특허분류(USC) 417/420 ; 417/365 ; 417/423.5 ; 417/424.1
출원번호 US-0904143 (1997-07-31)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 18
초록

The magnetic-drive assembly has an axial bearing which is strategically located to minimize compressive forces on a primary shaft. The axial bearing functions both as an ordinary thrust bearing and an inefficient impeller for circulating fluid internally within the magnetic-drive assembly. The axial bearing circulates lubricating fluid to a radial bearing to promote bearing longevity. The magnetic-drive assembly has a shaft adjustment mechanism for adjusting the axial orientation of a primary shaft and impellers with respect to a housing. The shaft adjus...

대표
청구항

[ We claim:] [1.] A magnetic-drive assembly for a multi-stage, centrifugal pump having a primary shaft, the assembly comprising:a housing having a bearing support;a containment structure associated with the housing;a first rotor located on a wet side of the containment structure, the first rotor coupled to the primary shaft for rotation with the primary shaft;a second rotor located on a dry side of the containment structure, the second rotor magnetically coupled to the first rotor;a bushing supported by the bearing support, the bushing being associated w...

이 특허에 인용된 특허 (18)

  1. Bevington Jack T. (Ashland OH) Channell Alan B. (Ashland OH). Centrifugal pump. USP1989024802819.
  2. Cooper Paul (Titusville NJ). Combined boiler feed and condensate pump. USP1993065215448.
  3. Hansen Bent (Odense DKX). Cooling arrangement for magnetic couplings in pumps. USP1994065322421.
  4. Kotera Masayuki (Osaka JPX). Corrosion-resistant magnet pump. USP1989074850818.
  5. De Armas Jorge. Electromagnetic-coupled/levitated apparatus and method for rotating equipment. USP1999015856719.
  6. Sieghartner Leonard J. (Coal Valley IL). Hermetically sealed magnetic drive pump. USP1996065525039.
  7. Davis Lee W. (Oklahoma City OK) Hollingsworth James S. (Oklahoma City OK) Roberts Leo L. (Moore OK). Impeller for a magnetically coupled pump. USP1979014135863.
  8. Bowes H. David ; Richmond Jeffrey S.. Magnetic drive. USP1998075779456.
  9. Piazza Robert W. (Petaluma CA). Magnetic drive pump with axially adjustable impeller. USP1994115368439.
  10. Buse Frederic W. (Allentown PA). Magnetically coupled centrifugal pump. USP1993125269664.
  11. Horiuchi Korejiro (Kobe JPX). Magnetically driven centrifugal pump. USP1994045302091.
  12. Villette Guy J. (Bilieu 38850 Charavines FRX). Magnetically driven pump. USP1980104226574.
  13. Zimmermann ; Frederick Norman. Magnetically-coupled pump. USP1978034080112.
  14. Hanson Lloyd D. (Los Angeles CA). Multi-stage centrifugal pump with canned magnetic bearing. USP1995085445494.
  15. Sieghartner Leonard J. (Coal Valley IL). Multi-stage pump. USP1976063963371.
  16. Klaus ; Franz. Permanent magnetic centrifugal pump. USP1978104120618.
  17. Denk Joseph (Manhattan Beach CA) Koltz Edmund G. (Los Angeles CA) Rodriguez Henry (Maywood CA) McCarty Frederick B. (San Pedro CA). Reluctance torque coupler. USP1994035292284.
  18. Woodall Richard P. (Hanoverton OH) Swetye William J. (Salem OH) Faison Brian R. (Youngstown OH) Your Robert E. (Beloit OH). Verticle turbine pump. USP1995055413459.

이 특허를 인용한 특허 피인용횟수: 15

  1. Klein, Manfred P.; Brown, Jeffrey S.; McAloon, Scott A.. Corrosion-resistant impeller for a magnetic-drive centrifugal pump. USP2005066908291.
  2. Klein, Manfred P.; Brown, Jeffrey S.; McAloon, Scott A.; Phelps, Peter E.. Corrosion-resistant rotor for a magnetic-drive centrifugal pump. USP2009087572115.
  3. Cunningham, Christopher E.; Fantoft, Rune; Hollingsaeter, Terje. Flushing system. USP2014078777596.
  4. Burak,Stephen R.. Fuel processing device having magnetic coupling and method of operating thereof. USP2007037186018.
  5. Hembree,Richard D.; Dupuis,Francis. Hydraulic balancing magnetically driven centrifugal pump. USP2006097101158.
  6. Cunningham, Christopher E.; Fantoft, Rune; Hollingsaeter, Terje. In-line flow mixer. USP2014128920137.
  7. Cunningham, Christopher E.; Fantoft, Rune; Hollingsaeter, Terje. In-line flow mixer. USP2017039601964.
  8. Ekberg, Andrew Magnus; Beauregard, Jr., Paul Roland; Kramlich, Kerry E.; Allen, Scott Marvin; Carr, David M.; Hauser, Ray L.. Inner drive for magnetic drive pump. USP2016069362050.
  9. Ekberg, Andrew Magnus; Beauregard, Jr., Paul Roland; Kramlich, Kerry E.; Allen, Scott Marvin; Carr, David M.; Hauser, Ray L.. Inner drive for magnetic drive pump. USP2012128333666.
  10. Klein, Manfred P.; Brown, Jeffrey S.; McAloon, Scott A.. Method for forming a corrosion-resistant impeller for a magnetic-drive centrifugal pump. USP2010057707720.
  11. Towsley, Greg; Haack, Ryan; Talley, Joshua; Amdisen, Svend. Multistage pump assembly having removable cartridge. USP2012058172523.
  12. Cunningham, Christopher E.; Fantoft, Rune; Hollingsaeter, Terje. Pump with magnetic bearings. USP2014048696331.
  13. Sharp John,DEX. Rotating assembly and support therefor. USP2001066249070.
  14. Scharffenberger,Wolfgang. Support bearing for a vertically arranged centrifugal pump. USP2008017318707.
  15. S.o slashed.rensen, Eric Aarestrup. Tank and a centrifugal pump for emptying the tank. USP2004036702554.