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특허 상세정보

Method for maintaining blade tip clearance

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-007/12   
미국특허분류(USC) 60/3902 ; 60/3915 ; 60/3975 ; 415/116
출원번호 US-0189270 (1988-05-02)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 7
초록

A method for periodically restoring the blade tip to annular seal clearance in a gas turbine engine (10) includes incrementing (42a, 42b) the flow of external cooling air responsive only to an accumulated engine use parameter (58).

대표
청구항

A method for maintaining long term performance efficiency between consecutive periodic seal replacement in a particular one of a plurality of substantially similar gas turbine engines each having an active clearance control system for selectably reducing the clearance between a plurality of rotating blade tips and a surrounding annular seal, including means, disposed adjacent a portion of the engine structure, for delivering a modulated flow of gas, said gas flow having a temperature substantially different from the engine portion, means, responsive to c...

이 특허를 인용한 특허 피인용횟수: 15

  1. Hershey, John Erik; Osborn, Brock Estel; Gardner, Donald Lee; Ruiz, Rafael Jose; Herron, William Lee. Aircraft gas turbine engine blade tip clearance control. USP2012028126628.
  2. Adibhatla, Sridhar. Approach to extending life of gas turbine engine. USP2005086935120.
  3. Adibhatla,Sridhar. Approach to extending life of gas turbine engine. USP2008057377115.
  4. Adibhatla,Sridhar. Approach to extending life of gas turbine engine. USP2007037194864.
  5. Adibhatla,Sridhar. Approach to extending life of gas turbine engine. USP2007117290385.
  6. Strecker, Steven; Hui, Hong-Wei. Bypass air scoop for gas turbine engine. USP2012018092153.
  7. Herron,William Lee; Wiseman,Matthew William; Vishnauski,Jon Michael; Krupp,Brian Edward; Maruscik,Ronald George. Compensating for blade tip clearance deterioration in active clearance control. USP2008107431557.
  8. Adrian M. Ablett ; Sridhar Adibhatla ; Kiyoung Chung. Control system and method for controlling an engine in response to deterioration of the engine. USP2002106463380.
  9. Beecroft, Peter; Lewis, Leo Vivian; Bacic, Marko. Gas turbine engine control. USP2015038996277.
  10. Wilson, Kevin; Bouchard, Guy; Makuszewski, Jerzy. Hybrid turbine tip clearance control system. USP2005086925814.
  11. Holmquist, Eric B.. Measuring rotor imbalance via blade clearance sensors. USP2010087775107.
  12. Orlando, Robert Joseph; Cooker, Paul. Method of increasing engine temperature limit margins. USP2004016681558.
  13. Plunkett, Timothy T.; Hershey, John E.; Osborn, Brock E.; Seitzer, Kenneth E.; Taylor, Keith K.. Method, system, and apparatus for reducing a turbine clearance. USP2012108296037.
  14. Popescu, Cristina C.; Olejarski, Michael J.; Mazzotta, Timothy E.. Systems and methods for determining turbomachine engine safe start clearances following a shutdown of the turbomachine engine. USP2018069988928.
  15. Chehab, Abdullatif M.. Turbine blade tip clearance control. USP2010057708518.