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특허 상세정보

Robust hydrodynamic brush seal

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16J-015/44   
미국특허분류(USC) 277/355; 277/411
출원번호 US-0819585 (2001-03-28)
발명자 / 주소
대리인 / 주소
    Holland & Knight LLP
인용정보 피인용 횟수 : 27  인용 특허 : 9
초록

A brush seal for sealing a circumferential gap between two relatively rotating machine components, e.g. the rotor or shaft and stator of a fluid flow machine, such as a gas turbine engine. One end of a plurality of seal bristles is fixed in an annular shape and are mounted to the stator, and their opposite ends are attached to a number of individual shoes located at the rotor. The shoes function very similarly to that of a tilting pad bearing shoe. Prior to shaft rotation, the shoes are in contact with the rotor surface with preferably the leading edge o...

대표
청구항

1. A brush seal for sealing a circumferential gap between a first machine component and a second machine component which is rotatable relative to the first machine component, comprising:a number of seal bristles each having a first end and a second end, said first ends of said seal bristles being mounted to said first machine component and said second ends extending in a direction toward said second machine component; at least one shoe extending about the second machine component, said at least one shoe being fixed to said second ends of said seal bristl...

이 특허를 인용한 특허 피인용횟수: 27

  1. Gail, Alfons; Werner, Klemens. Brush seal. USP2004026695314.
  2. Zheng, Xiaoqing; Mack, Michael Dennis; Mukhopadhyay, Debabrata. Brush seal for turbine. USP2016049322287.
  3. Awtar, Shorya; Turnquist, Norman Arnold. Compliant plate seals for turbomachinery. USP2010017651101.
  4. Awtar, Shorya; Verma, Nikhil Kumar. Compliant plate seals for turbomachinery. USP2013028382119.
  5. Awtar,Shorya; Turnquist,Norman Arnold. Compliant plate seals for turbomachinery. USP2008097419164.
  6. Addis,Mark E.. Floating brush seal assembly. USP2006087093835.
  7. Schmitz, John T.. Gas turbine engine and seal assembly therefore. USP20180910066496.
  8. Gibson, Nathan. Gas turbine engine including lift-off finger seals, lift-off finger seals, and method for the manufacture thereof. USP2015059033657.
  9. Justak,John F.. Hydrodynamic brush seal. USP2007027182345.
  10. Justak,John F.. Hydrodynamic brush seal. USP2008087410173.
  11. Mukhopadhyay, Debabrata; Zheng, Xiaoqing. L brush seal for turbomachinery application. USP2017039587505.
  12. Davis, Todd A.. Liftoff carbon seal. USP2014078777229.
  13. Lutjen, Paul M.. Multi-axial brush seal. USP20190210208674.
  14. Ackermann, William K.; Crawley, Jr., Clifton J.; Schwartz, Frederick M.. Non-contact seal assembly for rotational equipment. USP20181010094241.
  15. Ackermann, William K.; Crawley, Jr., Clifton J.; Schwarz, Frederick M.. Non-contact seal assembly for rotational equipment. USP20181010107126.
  16. Justak, John F.. Non-contact seal for a gas turbine engine. USP2012058172232.
  17. Justak, John F.. Non-contact seal for a gas turbine engine. USP2011088002285.
  18. D'Ambruoso, Tara L.. Non-contact seal with resilient biasing element(s). USP20190110184347.
  19. Addis,Mark E.. Reverse flow tolerant brush seal. USP2008127458584.
  20. Rogall, Peter; Gao, Meng; Qiu, Yuanyuan. Seal arrangement and a brush seal for a wind turbine. USP2011108043012.
  21. Justak, John F.. Seal with stacked sealing elements. USP2014028641045.
  22. Justak, John F.. Seal with stacked sealing elements. USP2011037896352.
  23. Justak, John F.. Self-adjusting non-contact seal. USP2014128919781.
  24. Awtar, Shorya; Adis, William Edward; Kowalczyk, Mark William; Turnquist, Norman Arnold. Shaft seal using shingle members. USP2010047703774.
  25. Simpson, Alex J.; Peters, Christopher J.; Ryan, Zachary D.. Shaped spring element for a non-contact seal device. USP20180810060535.
  26. Novikov, Dmitri; Furrer, David Ulrich; Burlatsky, Sergei F. Stiffness controlled abradeable seal system with max phase materials and methods of making same. USP2018059957826.
  27. Caprario, Joseph T.. Thrust bearing system with inverted non-contacting dynamic seals for gas turbine engine. USP20181110119476.