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특허 상세정보

Apparatus and method for controlling engine windmilling

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-007/32    F02C-007/00    F02K-003/00    F02C-007/36   
미국특허분류(USC) 060/226.1; 060/802; 060/793
출원번호 UP-0425012 (2006-06-19)
등록번호 US-7621117 (2009-12-02)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ogilvy Renault LLP
인용정보 피인용 횟수 : 8  인용 특허 : 14
초록

An apparatus and method are provided for controlling the ground windmilling of at least one of the spools in a gas turbine engine. Electrical power is supplied to a braking apparatus in one aspect. In another aspect, an oil system is powered during ground windmilling.

대표
청구항

What is claimed is: 1. A ground windmill control apparatus for impeding windmilling rotation of a bladed rotor and an associated engine shaft of an aircraft-borne turbofan gas turbine engine, the apparatus comprising: at least one electric generator connected to rotate with the engine shaft at least one electric motor connected to rotate with the engine shaft a controller configured to be operable while the aircraft is on the ground and the engine is in an unlit shutdown mode to control the generator to operate as an electrical generator and to control ...

이 특허에 인용된 특허 (14)

  1. Ciokajlo John J. (Cincinnati OH) O\Brien Michael T. (Cincinnati OH). Air-start assembly and method. USP1994095349814.
  2. Snow Barton H. (Wyoming OH) Homan Frank R. (Cincinnati OH). Apparatus for windmill starts in gas turbine engines. USP1977124062186.
  3. Caamano Ramon A.. Electric motor or generator. USP1998035731649.
  4. Jeffrey Ronald Coles GB; Marc Holme GB; James Patrick Doyle GB. Electrical generator an aero-engine including such a generator, and an aircraft including such a generator. USP2002106467725.
  5. Carr Kenneth R. (Redmond WA) Rozman Gregory I. (Rockford IL) Markunas Albert L. (Roscoe IL) Hanson Michael J. (Loves Park IL) Weber Leland E. (Rockford IL) Shippling James A. (Erie PA) McArthur Malco. Engine starting system utilizing multiple controlled acceleration rates. USP1995075430362.
  6. Ward Andrew G. (Derby GB2). Gas turbine engine thrust reverser control. USP1992125167119.
  7. Fogarty, James Michael; Gott, Brian Ernest Baxter; Yagielski, John Russell; Vinitzky, Yury Danilovich. Method and apparatus for starting a gas turbine using a polyphase electric power generator. USP2005116960900.
  8. Snow Barton H. (Wyoming OH). Method and apparatus for windmill starts in gas turbine engines. USP1977124062185.
  9. Hield Paul M. (Bristol GB2) Cundy John M. (Derby GB2) Midgley Ronald A. (Derby GB2) Newton Arnold C. (Derby GB2) Rowe Arthur L. (Derby GB2). Shaft power transfer in gas turbine engines with machines operable as generators or motors. USP1997125694765.
  10. Mouton Pierre,FRX. System for restarting an aircraft engine in flight after loss of engine power. USP1998045735116.
  11. Walker Herbert L.. Turbine engine windmilling brake. USP2001116312215.
  12. Wall, Simon; Dickey, Brian; Pont, Guillermo. Turbogenerator with electrical brake. USP2004086784565.
  13. Midgley Ronald A. (Derby GB2). Turbopropeller or turbofan gas turbine engine. USP1989014799354.
  14. Petrowicz John P.. Windmill engine starting system with fluid driven motor and pump. USP1998125845483.