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특허 상세정보

Multifunction secondary power system starting method

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02C-007/268   
미국특허분류(USC) 60/39002 ; 60/39142 ; 60/3915
출원번호 US-0081461 (1993-06-23)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 18  인용 특허 : 0

A multifunction secondary power system (10) for use aboard an aircraft or other vehicle provides the functions both of an auxiliary power unit and of an emergency power unit. The power system (10) includes two turbine engines (12, 22) operable under differing conditions, a gearbox (34) receiving power from the two engines (12, 22) selectively through overrunning clutches (74,84), and a plurality of accessory devices (36, 38, 40) receiving shaft power from either of the two engines (12, 22) through the gearbox (34). The gear box (34) includes a third clut...


A method of starting a secondary power system having an auxiliary power unit (APU), an emergency power unit (EPU), and at least one accessory device mounted to a gearbox comprising the steps of: coupling said EPU to said gearbox and said APU; decoupling said APU from said gearbox; commanding a flow of propellant from a storage container to a combustor of said EPU; accelerating said EPU to its rated speed by combusting said propellant and expanding the resulting combustion products across a turbine journaled in said EPU; simultaneously, accelerating said ...

이 특허를 인용한 특허 피인용횟수: 18

  1. Bhargava, Brij B.. Aircraft taxiing and secondary propulsion system. USP2012028109464.
  2. Ullyott Richard Raymond Wilson,CAX. Auxiliary power unit system and method of operating an auxiliary power unit. USP2001086278262.
  3. Thompson,Robert G.; Hagshenas,Bezhad. Auxiliary power unit with an oil-free compressor. USP2006087093447.
  4. Thompson,Robert G.. Combined power main engine start system. USP2006097104072.
  5. Edelman, Edward C.. Command and control system for controlling operational sequencing of multiple turbogenerators using a selected control mode. USP2003126664653.
  6. Dennis,Michael R.. Electrical generator fluid-flow-coolant filtration. USP2006127150431.
  7. Gerdes,Ralf; Keller Sornig,Peter; Tuschy,Ilja. Gas storage power station. USP2006077073335.
  8. Wotzak, Mark Gregory. Integral offset oil tank for inline accessory gearbox. USP20180910072582.
  9. Rensch, Detlef. Jet engine with at least one emergency drive unit. USP2012108286435.
  10. Benham, Jr., Durward S.; Koerner, Michael S.. Jet fuel and air system for starting auxiliary power unit. USP2004126829899.
  11. Bernardi,John Jay; Goldammer,Timothy Allen; Morrical,Brian Todd. Machine with an electrical system. USP2007117291934.
  12. Thompson,Robert G.. Main engine electric start system. USP2006107117683.
  13. Huang, Lei; Gu, Zhuping; Zheng, Fengliang; Ma, Hongtao; Wu, Jiaju; Wang, Rong; Chen, Lei. Method and apparatus for detecting performance of an APU fuel assembly. USP2017059657649.
  14. Presse, Jean-Michel. Method and system for regulating power in the event of at least one aircraft engine failure. USP2016049315274.
  15. Gu, Zhuping; Ding, Huifeng; Zheng, Fengliang; Wu, Jiaju; Chen, Lei; Huang, Lei; Zhang, Hailong; Wang, Bingzheng. Method for monitoring performance of the lubricant cooler in aircraft auxiliary power unit. USP2017069689311.
  16. Simon R. Wall ; Joel B. Wacknov ; Mark G. Gilbreth ; Ken Keller. System and method for dual mode control of a turbogenerator/motor. USP2002066410992.
  17. Wall, Simon R.; Wacknov, Joel B.; Gilbreth, Mark G.; Keller, Ken. System and method for dual mode control of a turbogenerator/motor. USP2003126664654.
  18. Kim, Myeong-hyo; Ko, Min-seok; Shin, Jong-sub. Turbine system. USP2014068745991.