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특허 상세정보

Hybrid foil/magnetic bearing

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16C-017/02    H02K-007/09   
미국특허분류(USC) 384/103 ; 310/090.5
출원번호 US-0858483 (1997-05-16)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Zak, Jr., Esq.
인용정보 피인용 횟수 : 18  인용 특허 : 15
초록

A cylindrical shaft including a rotor rotates within a housing. A foil bearing comprised of flexible foil segments encircles the rotor, and is located in between the rotor and the housing. The foil segments are attached to the housing, and are installed with a flexion to press against the rotor. A split ring is situated near each end of the foil bearing. Each ring is suspended in an circumferential groove in the rotor by springs which also apply a force tending to keep the ring closed. When the rings are closed, the foil segments can press against and su...

대표
청구항

[ What is claimed is:] [1.] A foil bearing which can be engaged and disengaged, for supporting a rotatable shaft, comprising:a cylindrical shaft being rotatably disposed within a housing;a foil bearing encircling the shaft and situated in between the shaft and the housing;said foil bearing being fixedly attached to the housing, wherebythe shaft rotates relative to said foil bearing;said foil bearing being for applying a radial force against the shaft in the absence of restraint;a ring having an adjustable circumference encircling the shaft and situated i...

이 특허에 인용된 특허 (15)

  1. Jones Allen M. (Novi MI). Adjustable tension foil bearing. USP1989034815864.
  2. Eakman Kenneth J. ; Coons Terry L. ; Andres Michael ; Miller Lance F.. Backup bearing for magnetic bearings. USP1998025714818.
  3. Armstrong Timothy R. (Palos Verdes Estates CA) Esopa John R. (Hermosa Beach CA) Rigney ; II Thomas K. (Torrance CA) Saville Marshall P. (Torrance CA). Composite superconductor disc bearing. USP1992065126611.
  4. Armstrong Timothy R. (Palos Verdes Estates CA) Esopa John R. (Hermosa Beach CA) Rigney ; II Thomas K. (Torrance CA) Saville Marshall P. (Lawndale CA). Cylindrical composite superconductor bearing. USP1992075130588.
  5. Gu Alston L. (Rancho Palos Verdes CA). Foil bearing. USP1989014795274.
  6. Gu Alston L. (Rancho Palos Verdes CA). Foil journal bearing cooling. USP1989044818123.
  7. Gu Alston L. (Rancho Palos Verdes CA). Foil thrust bearing. USP1989104871267.
  8. Saville Marshall P. (Lawndale CA) Gu Alston L. (Rancho Palos Verdes CA). High load capacity journal foil bearing. USP1992055116143.
  9. Rigney Thomas K. (Torrance CA). Laminated magnetic structure for superconducting bearings. USP1993035196748.
  10. New Nigel H. (Harrow GB2). Low friction backup system for magnetic bearings. USP1993125272403.
  11. Scharrer Joseph K. (Fair Oaks CA). Magnetically active foil bearing. USP1996055519274.
  12. Rigney ; II Thomas K. (Torrance CA) Saville Marshall P. (Lawndale CA). Stacked magnet superconducting bearing. USP1993065220232.
  13. Saville Marshall P. (Lawndale CA) Gu Alston L. (Rancho Palos Verdes CA). Stepped foil journal foil bearing. USP1993075228785.
  14. Rigney ; II Thomas K. (Torrance CA). Superconducting composite magnetic bearings. USP1993125270601.
  15. Trippett Richard J. (Birmingham MI). Variable preload foil bearing. USP1984054445792.

이 특허를 인용한 특허 피인용횟수: 18

  1. Lee, Yong Bok; Kim, Chang Ho; Kim, Seung Jong; Lee, Sang Hwa; Kim, Hee Soo. Airfoil-magnetic hybrid bearing and a control system thereof. USP2014078772992.
  2. Gibbons, John L.. Bearing arrangement. USP2011098021050.
  3. Torbjorn Lembke SE. Compliant foil fluid film bearing with eddy current damper. USP2002106469411.
  4. Park, Cheol-Hoon; Choi, Sang-Kyu; Ham, Sang-Yong; Hong, Doo Euy; Yoon, Tae Gwang. Composite magnetic bearing having auxiliary bearing coupled thereto. USP2016039273723.
  5. Ganev,Evgeni; Koerner,Mike S.. Electrical power generation system and method for mitigating corona discharge. USP2008067391125.
  6. Ganev,Evgeni; Koerner,Mike S.. Electrical power generation system and method for mitigating corona discharge. USP2006037019415.
  7. Yoshino, Masato; Fujiwara, Hiroki. Foil bearing. USP2017049631556.
  8. Yoshino, Masato; Fujiwara, Hiroki. Foil bearing. USP2017109784307.
  9. Saville, Marshall; Hurley, Keith Alan. High strength foil journal bearing retainer. USP2018069989085.
  10. Saville, Marshall; Hurley, Keith Alan. High strength foil journal bearing retainer. USP2017019556899.
  11. Saville, Marshall; Hurley, Keith Alan. High strength foil journal bearing retainer. USP2015069057401.
  12. Hooshang Heshmat ; H. Ming Chen ; James F. Walton, II. Hybrid foil-magnetic bearing. USP2002036353273.
  13. Heshmat, Hooshang; Swanson, Erik E.; Locke, Dennis H.; Walton, II, James F.. Hybrid foil-magnetic bearing with improved load sharing. USP2004086770993.
  14. Heshmat, Hooshang; Walton II, James F.. Hybrid foil-magnetic bearing with improved load sharing. USP2005116965181.
  15. Omori, Naomichi. Radial foil bearing. USP2017029568042.
  16. Omori, Naomichi. Radial foil bearing. USP2017019551375.
  17. Omori, Naomichi; Tanaka, Tohru. Radial foil bearing. USP2015028944688.
  18. Klusman, Steven Arlen. Turbine engine powered system with hybrid bearing. USP2013098531071.