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"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Combined externally pressurized gas-magnetic bearing assembly and spindle device utilizing the same

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02K-007/09    H01H-047/00    H05B-006/32   
미국특허분류(USC) 310/090.5 ; 361/143 ; 219/648
출원번호 US-0066820 (1998-04-28)
우선권정보 JP0097505 (1998-04-09)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Birch, Stewart, Kolasch & Birch, LLP
인용정보 피인용 횟수 : 12  인용 특허 : 22
초록

A combined externally pressurized gas and magnetic bearing assembly (3) includes an externally pressurized gas bearing (9) and a magnetic bearing (8) that are integrated together so as to have component parts common to both of the externally pressurized gas bearing (9) and the magnetic bearing (8). The externally pressurized gas bearing (9) or the magnetic bearing (8) may be disposed within an axial extent of the magnetic bearing (8) or the externally pressurized gas bearing (9), respectively. A spindle device (1) utilizing the combined externally pressu...

대표
청구항

[ What is claimed is:] [1.]1. A combined externally pressurized gas and magnetic bearing assembly which comprises:a magnetic bearing including a displacement measuring means for measuring a displacement of a rotor, said magnetic bearing being operable to support the rotor at a predetermined position by generating an electromagnetic force according to the displacement measured by the displacement measuring means;an externally pressurized gas bearing having a fluid restrictor defined in a bearing stator of the magnetic bearing; anda magnetic bearing contro...

이 특허에 인용된 특허 (22)

  1. Studer Philip A. (Silver Spring MD). Actively suspended counter-rotating machine. USP1983094405286.
  2. Jolivet Jean (Gasny FRX) Habermann Helmut (Vernon FRX). Auxiliary bearing having a graphite stator for a rotary shaft mounted on magnetic bearings. USP1991014982126.
  3. Henderson David A. (Monroeville PA). Bearing system. USP1992035098203.
  4. Matsushita Osami (Ibaraki JPX) Takagi Michiyuki (Ibaraki JPX) Yoneyama Mitsuho (Ibaraki JPX) Sugaya Toyomi (Ibaraki JPX). Control apparatus for a rotor supported by an electromagnetic bearing. USP1987094697128.
  5. Birkenmaier Wilhelm (Weinstadt-Beutelsbach DEX) Paweletz Anton (Fellbach-Oeffingen DEX). Drive and bearing for a shaft-less open-end spinning rotor. USP1996115570572.
  6. Meinke ; Peter ; Huber ; Wolfgang. Drive and bearing support for a disc-shaped rotor. USP1978024076340.
  7. Habermann Helmut (Vernon FRX). Electromagnetic device for reducing vibration in a rotary machine fitted with fluid bearings. USP1989024806835.
  8. Ozu Masao (Fuji JPX) Monden Tsuneo (Tokyo JPX). Enclosed type compressor and method for assembling the same. USP1986044584750.
  9. Nichols Stephen B. ; Jagannathan Shankar ; Leary Kevin ; Eisenhaure David ; Stanton William ; Hockney Richard ; Downer James ; Gondhalekar Vijay. Integrated magnetic levitation and rotation system. USP1998105818137.
  10. Kenjo Atsushi (Takasaki JPX) Kataoka Takashi (Maebashi JPX). Linear motor system. USP1993015179304.
  11. New Nigel H. (Harrow GBX). Magnetic bearing back-up. USP1994095345127.
  12. New Nigel H. (Harrow GBX). Magnetic bearing back-up. USP1994105355040.
  13. Yamauchi Akira,JPX. Magnetic bearing devices. USP1999105973468.
  14. Lewis David W. (Charlottesville VA) Humphris Robert R. (Charlottesville VA) Maslen Eric H. (Charlottesville VA) Allaire Paul E. (Charlottesville VA) Williams Ronald D. (Charlottesville VA) Yates Stev. Magnetic bearing systems. USP1994095347190.
  15. Scheffer Dietrich (Reutlingen DEX) Guse Rolf (Reutlingen DEX). Magnetic bearings. USP1981014245869.
  16. Lewis David W. (Charlottesville VA) Humphris Robert R. (Charlottesville VA) Maslen Eric H. (Charlottesville VA) Allaire Paul E. (Charlottesville VA) Williams Ronald D. (Charlottesville VA). Magnetic bearings for pumps, compressors and other rotating machinery. USP1994105355042.
  17. Ishizuka Yutaka (Nagano JPX) Katakura Koichi (Nagano JPX). Rotary polygon mirror type light deflecting system. USP1997095666219.
  18. Nakajima Satoshi (Iida JPX). Sealing structure in a motor for magnetic discs. USP1989054827168.
  19. Beggs James M. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( Rockville MD) Gasser Max G. (Rockville MD) Sherman Allan (Lanham MD) Studer Phili. Stirling cycle cryogenic cooler. USP1983064389849.
  20. Moon Francis C. (Ithaca NY) Raj Rishi (Ithaca NY). Superconducting rotating assembly. USP1989124886778.
  21. Honda Kunioki (Shiga JPX). Washing machine. USP1988034733547.
  22. Fouche Claude (Gasny FRX). Workpiece-carrier spindle assembly having magnetic bearings, and a device implementing such an assembly for a very high. USP1990124976177.