[특허]Control system for variable pitch fan propulsor with reverse pitch

[미국특허] Control system for variable pitch fan propulsor with reverse pitch 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63H-003/10 F02C-009/02 B64C-011/44
출원번호	US-0477533 (1974-06-07)
발명자 / 주소	Harner Kermit I. (Windsor CT) Schneider Roy W. (Ellington CT)
출원인 / 주소	United Technologies Corporation (Hartford CT 02)
인용정보	피인용 횟수 : 29 인용 특허 : 0

초록 ▼

A coordinated fan pitch, fuel flow and fan exhaust nozzle area control for a gas turbine powered aircraft propulsor of the bypass duct, variable pitch and exhaust nozzle configuration serves to effectuate reverse pitch change through feather, by minimizing forward thrust excursion and shaft torque t

대표청구항 ▼

For a ducted fan propulsor for aircraft having variable pitch blades movable to a reverse position through feather and driven by a free turbine of a turbine type power plant, coordinated control means for controlling the pitch of said blades and the flow of fuel to said power plant, said coordinated control means for controlling fuel flow includes scheduling means responsive to power lever position, flight Mach No. and power plant inlet temperature for producing a first signal, means responsive to free turbine speed for producing a second signal, means responsive to said first signal and said second signal for producing an output signal for controlling fuel flow, said coordinated control means for controlling pitch of the blades being responsive to power lever position and flight Mach No., said coordinated control means having reverse power interlock to reduce forward thrust during a landing operation, to coordinate the fuel flow and reverse pitch by having said fuel flow further controlled by the blade angle of said blades and the pitch controlled by power lever position, and an engine operating parameter.

이 특허를 인용한 특허 (29) 인용/피인용 타임라인 분석

Vos, David W., Apparatus and method for controlling power generation system.
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D\Angelo Giuseppe (Misterbianco ITX) Poluzzi Rinaldo (Milan ITX) Presti Matteo Lo (Misterbianco ITX), Applied-voltage fuzzy control process for induction motors and device for performing it.
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Wanger Robert P. (Fairfield OH), Back-up control for gas turbine engine.
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Whitehouse John W. (Rockford IL), Blade pitch changing mechanism.
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Migliaro, Jr., Edward F., Core cowl airfoil for a gas turbine engine.
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Nick Charles F. (Lufkin TX), Electronic fuel control system for gas turbine.
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Larsen Hals N. (Redmond WA) Kamber Peter W. (Bellevue WA), Fan R.P.M. control loop stabilization using high rotor speed.
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Evans Rowland M. (Terrasse Vaudreuil CAX), Fuel control system for gas turbine engine.
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Stuart, Alan Roy; Lonneman, Patrick John, Gas turbine engine and method of assembling the same.
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Baltas, Constantine; Hauser, Joseph R., Gas turbine engine with a variable exit area fan nozzle, nacelle assembly of such a engine, and corresponding operating method.
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Wehmeier, Eric J., Gas turbine engine with variable area fan nozzle positioned for starting.
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Wehmeier, Eric J., Gas turbine engine with variable area fan nozzle positioned for starting.
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Langston, Todd A.; Johnson, Andrew T.; Ahrendt, Terry J., Gearless electric thrust reverser actuators and actuation system incorporating same.
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Marvin Ira E. (Fairfield OH) Cowgill Joseph R. (Cincinnati OH), Method and apparatus for controlling thrust in a gas turbine engine.
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Peplow, Martin Adam; McCormick, Ian, Method and apparatus for the engine control of output shaft speed.
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Ahrendt, Terry, Method for controlling the deployment of jet engine thrust reversers.
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Howe, Mark E., Method of varying a fan duct nozzle throat area of a gas turbine engine.
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Parham, Dean L., Method of varying a fan duct throat area.
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Vos, David W.; Russ, Benjamin, Optimization method for power generation systems.
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Vos, David W.; Russ, Benjamin, Optimization method for power generation systems.
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Vos,David W.; Russ,Benjamin, Optimization method for power generation systems.
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Howe, Mark E., Pivoting fan nozzle nacelle.
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Parham, Dean L., Radially translating fan nozzle nacelle.
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Ahrendt, Terry, System and method for controlling the deployment of jet engine thrust reversers.
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Ahrendt, Terry J.; Johnson, Andrew T.; Chakkera, Kevin K., System and method for controlling the movement of an aircraft engine cowl door.
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Ahrendt, Terry, System and method for controlling the stowage of jet engine thrust reversers.
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Terry J. Ahrendt, System and method for sustaining electric power during a momentary power interruption in an electric thrust reverser actuation system.
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Johnson, Andrew T., Thrust reverser position determination system and method.
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Lu, Manxue; Hamel, Jeffrey Anthony, Thrust scheduling method for variable pitch fan engines and turbo-shaft, turbo-propeller engines.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Control system for variable pitch fan propulsor with reverse pitch 원문보기