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특허 상세정보

Method and apparatus for windmill starts in gas turbine engines

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-003/06    F02K-003/12   
미국특허분류(USC) 60/204 ; 60/226R ; 60/3914 ; 60/3916 ; S
출원번호 US-0686013 (1976-05-13)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 31  인용 특허 : 1

A hydraulic pump and drive system is interconnected between the fan and compressor rotor of a turbofan engine such that the windmill speed of the core rotor can be boosted to a speed sufficient to allow a significantly increased in-flight start envelope by selectively extracting power from the windmilling fan prior to relight of the engine. Control logic is included to decouple the motor and pump whenever the engine is in the operating speed region and to selectively couple the fan-driven hydraulic pump to auxiliary machinery such as the nozzle actuators...


A method of starting a turbofan engine of the type having a compressor and a Fan adapted to bypass a portion of the airflow around the compressor during engine operation and separate turbine means for driving the compressor and fan, comprising a. connecting a power generation means to said fan to derive energy therefrom during selective periods in which it is rotating; b. selectively connecting a motor means to said power generation means to derive energy therefrom during predetermined periods of operation; and c. connecting said motor means to said comp...

이 특허를 인용한 특허 피인용횟수: 31

  1. Butt,David C.. Aircraft gas turbine engines. USP2008097418821.
  2. Dooley, Kevin Allan; Savage, William J. K.. Apparatus and method for controlling engine windmilling. USP2009117621117.
  3. DiBenedetto, Enzo; Coffin, James B.; Davis, Todd A.. Apparatus and method for providing damper liquid in a gas turbine. USP2013088511055.
  4. DiBenedetto, Enzo; Coffin, James B.; Davis, Todd A.. Apparatus and method for providing damper liquid in a gas turbine engine. USP2017109790855.
  5. Fisher, Robert E.. Apparatus, controller and method for controlling the cool down of an aircraft engine rotor. USP2017099771932.
  6. Haehner, Edgar; Senger, Gerald. Assistance device for transient acceleration and deceleration phases. USP2012068201414.
  7. Adamson Arthur P. (Cincinnati OH) Butler Lawrence (Cincinnati OH). Auxiliary power source in an unducted fan gas turbine engine. USP1990064936748.
  8. Dooley, Kevin Allan; Cheng, Audrey; Makuszewski, Jerzy. Combination low spool generator and ram air turbine generator. USP2013088519555.
  9. Gilbreth Mark G. ; Wall Simon R. ; Wacknov Joel B.. Combustion control method and system. USP2001086274945.
  10. Edelman, Edward C.. Command and control system for controlling operational sequencing of multiple turbogenerators using a selected control mode. USP2003126664653.
  11. Delaloye, Jim; Christopher, Matthew. Electric motor driven lubrication pump control system and method for turbomachine windmill operation. USP2012068201662.
  12. Bettner, James Lee. Electrical power generation and windmill starting for turbine engine and aircraft. USP2015069051881.
  13. Franchet, Michel; Hebraud, Guy. Emergency device for relighting a windmilling turbojet. USP2004016672049.
  14. Griffiths, Michael. Engine fuel control system. USP2017049617923.
  15. Kurschat, Ernest; Xiong, Yufei; Haugland, Ron; Thompson, Craig E.. Engine systems with enhanced start control schedules. USP2017049611786.
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  18. Götz, Werner; Herrmann, Hubert. Jet engine with detachably arranged generator unit. USP2012028113005.
  19. Rice John N. (Rockford IL) Yeh Jarvis J. M. (Rockford IL). Low speed spool emergency power extraction system. USP1990044912921.
  20. Jones, Alan R.. Method of inhibiting ice accretion within a turbine engine and control system therefor. USP2016019239011.
  21. Anderson, Stephen Arthur. Off loading clutch for gas turbine engine starting. USP2004056732529.
  22. Ullyott, Richard. Operation of an aircraft engine after emergency shutdown. USP2010127854582.
  23. Ellans, Christopher J.; Martin, John H.. Propulsion unit. USP2014058726674.
  24. Dooley, Kevin Allan. Relighting a turbofan engine. USP2016059347379.
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  27. Leese, Robert E.. Rotating fluid pumping system. USP2016029260980.
  28. Mouton Pierre,FRX. System for restarting an aircraft engine in flight after loss of engine power. USP1998045735116.
  29. Jain, Ashok K.; Winter, Michael. Variable area nozzle assisted gas turbine engine restarting. USP2016059328666.
  30. Norris, James W.; Nordeen, Craig A.; Raver, Bernard J.. Variable bypass turbine fan. USP2011108028513.
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