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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Dry gas seal

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16J-015/34   
미국특허분류(USC) 277/399; 277/401; 277/400
출원번호 US-0476395 (2002-04-24)
우선권정보 GB-0110521.2(2001-04-30)
국제출원번호 PCT/GB02/001871 (2002-04-24)
§371/§102 date 20040621 (20040621)
국제공개번호 WO02/088578 (2002-11-07)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Fleit, Kain, Gibbons, Gutman, Bongini &
인용정보 피인용 횟수 : 31  인용 특허 : 10
초록
▼

A gas seal assembly comprises a pair of mutually rotatable sealing members A, B, each of which has a face adjacent a gap between the two members. One of the members B is urged in a direction attempting to close the gap h which constitutes a leakage path through the seal assembly. A gas bleed arrangement 7 allows gas from a high pressure side P3 of the seal assembly to bleed into the gap at a position radially spaced between an inner diameter of the members and an outer diameter of the members A,B so as to apply a force tending to separate the members, th...

대표
청구항
▼

What is claimed is: 1. A gas seal assembly for sealing between a rotating shaft and a surrounding casing, the gas seal assembly comprising: a pair of sealing members, of which a first sealing member is mounted for rotation with a rotating shaft and a second sealing member is secured to a casing, each of the first sealing member and the second sealing member having an active face adjacent to a gap between the members which gap constitutes a leakage path through a seal assembly, one of the members being arranged in use to be urged in a direction attemptin...

이 특허에 인용된 특허 (10)

  1. Lipschitz Abraham (Warwick RI). Bi-directional, non-contact face seal. USP1992095143384.
  2. Jones Richard A. (Bryn Mawr PA). Circumferential hydrodynamic seals for sealing a bidirectionally rotatable member. USP1996055516118.
  3. DeHart Arnold O. (Rochester MI) Symons James D. (Southfield MI). Combined vacuum pump, bearing and seal assembly. USP1987024645414.
  4. Victor Karl-Heinz (Castrop-Rauxel DEX) Maser Gustav (Dortmund DEX) Laarmann Hans W. (Hamm DEX) Dedeken Ralf (Witten-Heven DEX). Contactless pressurizing-gas shaft seal. USP1992035092612.
  5. Sedy Josef (Mount Prospect IL). Face seal with angled grooves and shallow annular groove. USP1997125702110.
  6. Toshihiko Fuse JP; Eiji Okumachi JP. Non-contact type mechanical seal. USP2002086431551.
  7. Toshihiko, Fuse. Non-contact type shaft sealing device. USP2003016505836.
  8. Sedy Josef (Glenview IL). Self aligning spiral groove face seal. USP1980074212475.
  9. Sedy Josef ; Zobens Artur. Spiral groove face seal. USP1998035722665.
  10. Fuse Toshihiko,JPX. Static pressure non-contact gas seal. USP2000106135458.

이 특허를 인용한 특허 피인용횟수: 31

  1. Owens, Tracie L.; Leta, Daniel P.. Adsorbent-incorporated polymer fibers in packed bed and fabric contactors, and methods and devices using same. USP2017079713787.
  2. Fowler, Tracy A.; Huntington, Richard A.; Fulton, John W.. Apparatus and system for swing adsorption processes related thereto. USP20190310220346.
  3. Fowler, Tracy A.; Ramkumar, Shwetha; Frederick, Jeffrey W.; Nagavarapu, Ananda K.; Chialvo, Sebastian; Tammera, Robert F.; Fulton, John W.. Apparatus and system for swing adsorption processes related thereto. USP20180810040022.
  4. Johnson, Robert A.; Deckman, Harry W.; Kelley, Bruce T.; Oelfke, Russell H.; Ramkumar, Shwetha. Apparatus and system for swing adsorption processes related thereto. USP20180910080991.
  5. McMahon, Patrick D. J.; Johnson, Robert A.; Ramkumar, Shwetha; Oelfke, Russell H.; Thomas, Eugene R.; Nagavarapu, Ananda K.; Barnes, William. Apparatus and system for swing adsorption processes related thereto. USP20181110124286.
  6. Nagavarapu, Ananda K.; Marshall, Bennett D.. Apparatus and system for swing adsorption processes related thereto. USP20190310220345.
  7. Nagavarapu, Ananda K.; Smith, Ransdall K.; Oelfke, Russell H.. Apparatus and system for swing adsorption processes related thereto. USP20180910080992.
  8. Tammera, Robert F.. Apparatus and system for swing adsorption processes related thereto. USP2017099751041.
  9. Tammera, Robert F.; Frederick, Jeffrey W.. Apparatus and system for swing adsorption processes related thereto. USP2018019861929.
  10. Ramkumar, Shwetha; Johnson, Robert A.; Mon, Eduardo; Fulton, John W.. Apparatus and system having a valve assembly and swing adsorption processes related thereto. USP2017069675925.
  11. Tammera, Robert F.. Apparatus and systems having a reciprocating valve head assembly and swing adsorption processes related thereto. USP2017039593778.
  12. Tammera, Robert F.. Apparatus and systems having a reciprocating valve head assembly and swing adsorption processes related thereto. USP2015049017457.
  13. Sundaram, Narasimhan; Huntington, Richard A.. Apparatus and systems having a rotary valve assembly and swing adsorption processes related thereto. USP2015099120049.
  14. Tammera, Robert F.; Anderson, Thomas N.. Apparatus and systems having a rotary valve assembly and swing adsorption processes related thereto. USP2016059352269.
  15. Wanni, Amar S.; Nadarajah, Chithranjan; Frederick, Jeffrey W.; Sundaram, Narasimhan. Apparatus and systems having an adsorbent contactor and swing adsorption processes related thereto. USP2015059034078.
  16. Tammera, Robert F.; Basile, Richard J.; Frederick, Jeffrey W.. Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto. USP20180710016715.
  17. Tammera, Robert F.; Basile, Richard J.; Frederick, Jeffrey W.. Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto. USP2016069358493.
  18. Sundaram, Narasimhan. Apparatus and systems having compact configuration multiple swing adsorption beds and methods related thereto. USP2015109162175.
  19. Haynes, George Perry. Arch-bound ring seal and ring seal system including an arch-bound ring seal. USP2017059638326.
  20. Haynes, George Perry; Manry, Jared Daniel. Bidirectional lift-off circumferential shaft seal segment and a shaft seal including a plurality of the segments. USP2017079695940.
  21. Kim, Jin-Hyoung; Shin, Bong-Gun. Gas seal assembly. USP2016059334965.
  22. Besson, Sebastien; Brethes, Bruno. Gas seal assembly for cryogenic liquid turbomachines. USP2016109476314.
  23. Frederick, Jeffrey W.; Fulton, Jr., John W.; Tammera, Robert F.; Huntington, Richard A.. Integrated adsorber head and valve design and swing adsorption methods related thereto. USP2015069067168.
  24. Sundaram, Narasimhan; Northrop, P. Scott. Kinetic fractionators, and cycling processes for fractionation of gas mixtures. USP2014128921637.
  25. Deckman, Harry W.; Kamakoti, Preeti; Ravikovitch, Peter I.; Kelley, Bruce T.; Northrop, P. Scott; Rasmussen, Peter C.; Tanaka, Paul L.; Webster, Martin N.; Roth, Wieslaw J.; Corcoran, Jr., Edward W.. Method and apparatus for removal of oil from utility gas stream. USP20180710035096.
  26. Deckman, Harry W.; Kamakoti, Preeti; Ravikovitch, Peter I.; Kelley, Bruce T.; Northrop, Paul Scott; Rasmussen, Peter C.; Tanaka, Paul Lawrence; Webster, Martin N.; Roth, Wieslaw Jerzy; Corcoran, Edward W.. Method and apparatus for removal of oil from utility gas stream. USP2015099126138.
  27. Rasmussen, Peter C.; Tanaka, Paul L.; Kelley, Bruce T.; Uptigrove, Stanley O.; Deckman, Harry W.. Methods of generating and utilizing utility gas. USP2014128906138.
  28. Deckman, Harry W.; Johnson, Robert A.; Tammera, Robert F.; Anderson, Thomas N.. Methods of removing contaminants from a hydrocarbon stream by swing adsorption and related apparatus and systems. USP2015109168485.
  29. Deckman, Harry W.; Johnson, Robert A.; Kelley, Bruce T.; Ravikovitch, Peter I.; Anderson, Thomas N.. Methods of removing contaminants from hydrocarbon stream by swing adsorption and related apparatus and systems. USP2015059034079.
  30. Zheng, Xiaoqing; Glinbizzi, Nathaniel Carmello; Erdmenger, Rodrigo Rodriguez; Turnquist, Norman Arnold. Seal assembly for a turbomachine. USP2014068740224.
  31. Brody, John F.; Leta, Daniel P.; Fowler, Tracy Alan; Freeman, Stephanie A.; Cutler, Joshua I.. Structured adsorbent beds, methods of producing the same and uses thereof. USP2017089744521.

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