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특허 상세정보

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) 60/226R ; 60/3914 ; 60/3916 ; S ; 60/3918 ; C
출원번호 US-0686014 (1976-05-13)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 22  인용 특허 : 1
초록

A torque converter is interconnected between the fan and core rotor of a turbofan engine such that the speed of the core rotor can be boosted from windmill speed to a speed sufficient to allow an in-flight start by selectively extracting power from the windmilling fan during the start sequence of the engine. Control logic is included to automatically drain the oil from, and thereby unload, the torque converter whenever the engine is in the operating speed region. Further assurance is provided by an overrunning clutch which decouples the system when the c...

대표
청구항

An improved air-start system for a turbofan engine of the type having compressor rotor and fan rotor assemblies independently driven by separate turbine means wherein the improvement comprises a torque converter drivingly connectable between said compressor and fan rotors during periods of in-flight windmilling such that the fan can be made to impart rotary motion to the compressor to accelerate it to a speed sufficient to accommodate an air start.

이 특허를 인용한 특허 피인용횟수: 22

  1. Dooley, Kevin Allan; Savage, William J. K.. Apparatus and method for controlling engine windmilling. USP2009117621117.
  2. Dooley, Kevin Allan; Cheng, Audrey; Makuszewski, Jerzy. Combination low spool generator and ram air turbine generator. USP2013088519555.
  3. Gilbreth Mark G. ; Wall Simon R. ; Wacknov Joel B.. Combustion control method and system. USP2001086274945.
  4. Edelman, Edward C.. Command and control system for controlling operational sequencing of multiple turbogenerators using a selected control mode. USP2003126664653.
  5. Bettner, James Lee. Electrical power generation and windmill starting for turbine engine and aircraft. USP2015069051881.
  6. Franchet, Michel; Hebraud, Guy. Emergency device for relighting a windmilling turbojet. USP2004016672049.
  7. Kurschat, Ernest; Xiong, Yufei; Haugland, Ron; Thompson, Craig E.. Engine systems with enhanced start control schedules. USP2017049611786.
  8. Youssef, Nashed. Gas turbine aircraft engine with power variability. USP2012058181442.
  9. Conn Francis E. (Plainfield IN). Gas turbine engine starting mechansim. USP1989104870817.
  10. Menheere, David; Eleftheriou, Andreas; Kostka, Richard. Gas turbine engine with internal electromechanical device. USP2014098829702.
  11. Davis, Todd A.. Geared turbofan engine with integral gear and bearing supports. USP2017059638062.
  12. Davis, Todd A.. Geared turbofan engine with integral gear and bearing supports. USP2014098845277.
  13. Menheere, David; Eleftheriou, Andreas; Kostka, Richard. Method of assembling an electromechanical device in a gas-turbine engine. USP2017089735650.
  14. Menheere, David; Eleftheriou, Andreas; Kostka, Richard. Method of assembling an electromechanical device in a gas-turbine engine. USP2015049003638.
  15. Ullyott, Richard. Operation of an aircraft engine after emergency shutdown. USP2010127854582.
  16. Ellans, Christopher J.; Martin, John H.. Propulsion unit. USP2014058726674.
  17. Dooley, Kevin Allan. Relighting a turbofan engine. USP2014118875519.
  18. Eick,Chris D.; Futa, Jr.,Paul W.. System and method to reduce fuel system pumping heat input. USP2007087252068.
  19. Burns, Donald W.. System, propulsion system and vehicle. USP2015028955335.
  20. Burns, Donald W.. System, propulsion system and vehicle. USP20181010094235.
  21. Zeiner, Peter Kenneth; Libera, Tony; Langston, Todd. Turbine drive system with lock-up clutch and method. USP2012048146370.
  22. Jain, Ashok K.; Winter, Michael. Variable area nozzle assisted gas turbine engine restarting. USP2016059328666.