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특허 상세정보

Damping means for hollow stator vane airfoils

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01D-005/10   
미국특허분류(USC) 415/119 ; 415/115 ; 416/500
출원번호 US-0159416 (1993-11-29)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 19  인용 특허 : 0
초록

Damping for the airfoils of stator vanes is provided by a spring damper formed from an elongated spring element bent into a “U”or “V”shape in cross section and oriented in the hollow of the airfoil so that the legs of the “U”or “V”frictionally engage the inner surfaces of the opposing pressure side and suction side walls of the airfoil to dissipate the vibratory energy. The elongated spring element is inserted through a hole formed on one end of the airfoil to extend just short of one of the ends of the airfoil to form a cantilevered mounted spring. The ...

대표
청구항

A hollow airfoil for the stator of the compressor of a gas turbine engine including wall means defining a pressure side, a suction side a tip and a root, in combination with a spring damper means comprising an elongated U-shaped element disposed in the hollow portion of said hollow airfoil having a pair of legs extending longitudinally from the bottom portion of said airfoil, a first portion of one of said pair of legs bearing against the inner surface of said wall means defining said pressure side, a second portion of the other of said pair of legs bear...

이 특허를 인용한 특허 피인용횟수: 19

  1. Chin Kevin. Aerofoil blade damper. USP2001096283707.
  2. Lewis, Thomas M.; Parin, Michael L.. Air-film vibration damping apparatus for windows. USP2013058439154.
  3. Lewis, Thomas M.; Parin, Michael L.. Air-film vibration damping apparatus for windows. USP2014108851423.
  4. Kraft Robert J. ; McClelland Robert J.. Airfoil vibration damping device. USP1998105820343.
  5. Bauer, Randall Charles; Patrick, D. Keith. Bimaterial turbine blade damper. USP2010117824158.
  6. Busbey,Bruce Clark; Weaver,Matthew Mark; Garay,Gregory Terrence. Bipedal damper turbine blade. USP2008087413405.
  7. Villhard, Robert L.. Blades having coolant channels lined with a shape memory alloy and an associated fabrication method. USP2004036699015.
  8. El-Aini, Yehia M.; Mitchell, William S.; Roberts, Lawrence P.; Montgomery, Stuart K.; Davis, Gary A.. Damping device for a stationary labyrinth seal. USP2010107806410.
  9. Nash, Grant. Method and apparatus for reducing noise transmission through a window. USP2017059645120.
  10. Villhard, Robert L.. Method of fabricating a shape memory alloy damped structure. USP2005056886622.
  11. Propheter,Tracy A.; Surace,Raymond C.. Rotor blade with a stick damper. USP2007057217093.
  12. Miller, Jeff Harley; Davis, Gary Alan. Split blade frictional damper. USP2004066752594.
  13. Ellis, Charles; Hollis, Terry; Medrano, David. Stator damper shim. USP2010117837435.
  14. Davis, Gary A.; Tuttle, Gary E.. Turbine blade assembly with pin dampers. USP2004016676380.
  15. Davis, Gary A.; Tuttle, Gary E.; Beatty, Robert F.. Turbine blade assembly with stranded wire cable dampers. USP2004026685435.
  16. Lewis, Thomas M.; Jones, David I. G.. Turbine engine damper. USP2003026514040.
  17. Yamashita, Hiroyuki; Oyama, Hiroharu; Maruyama, Takashi; Yamamoto, Yuki; Danno, Shohei. Turbine vane of steam turbine and steam turbine. USP2016119488066.
  18. Miller, David. Vibration damper. USP2015018926282.
  19. Lewis, Thomas M.; Parin, Michael L.. Vibration damping apparatus for windows using viscoelastic damping materials. USP2010057721844.