[특허]Nacelle cooling and ventilation system

Nacelle cooling and ventilation system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-006/18
출원번호	US-0049099 (1993-04-14)
발명자 / 주소	Laborie Daniel J. (Cincinnati OH) Marban Joseph R. (Springdale OH) Schulze Wallace M. (West Chester OH) Baumbick Robert J. (West Chester OH)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 57 인용 특허 : 0

초록 ▼

A nacelle cooling and ventilation system for an aircraft gas turbine engine which includes a chin scoop and duct assembly for directing air through the engine bay where it is exhausted into the engine exhaust through an exhaust shroud eductor. The nacelle is enclosed so that effectively all of the cooling air entering the bay leaves the bay through the engine exhaust and is not dumped overboard, thereby adding to the effective thrust of the engine. An engine oil and generator oil heat exchanger is positioned in the cooling air duct into the bay so that the same air which cools the bay also cools engine and generator oil. The oil heat exchanger includes directional louvers which regulate and keep to a minimum the amount of cooling air and direct cooling air forwardly in the bay so that the entire bay area is cooled, and which can be shut as a fire control measure. The nacelle includes bay vent doors which are opened in response to a high oil temperature condition or in an engine shut-off condition on ground to provide auxiliary air flow from the bay. The doors are positionable by an actuator but can be disconnected from the actuator to pivot freely in response to a sudden increase in nacelle bay pressure.

대표청구항 ▼

In a nacelle having a turbine engine in a bay thereof, an engine inlet for supplying combustion air to said engine, an exhaust shroud forming an annular passage with an exhaust conduit of said engine for evacuating air from within said engine bay, a chin scoop for receiving cooling air and an air/oil heat exchanger receiving cooling air from said chin scoop, a cooling and ventilation system comprising: duct means for discharging air from said heat exchanger into said bay wherein said discharged air cools said engine and is drawn through said annular passage into said engine exhaust, whereby thrust recovery is minimized and overboard dumping of cooling air is minimized; a start bleed air conduit extending between a compressor of said turbine and said engine exhaust downstream of said annular passage whereby start bleed compressor air supplements exhaust from said engine to scavenge said bay at low engine exhaust speeds wherein said annular passage includes an entrance adjacent to and in direct fluid flow communication with said bay; and wherein said bay is substantially enclosed by said nacelle wherein effectively all cooling air entering said bay enters from said chin scoop, wherein the cooling air provided for use in said air/oil heat exchanger and for cooling said engine is provided with minimum reductions in aerodynamic efficiency.

이 특허를 인용한 특허 (57)

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Rupp, George D.; Troia, Trajaen J., Aircraft engine airflow modulation apparatus and method for engine bay cooling and cycle flow matching.
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Skilton, Timothy L., Bi-directional ventilation systems for use with aircraft and related methods.
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Agrawal, Rajendra K.; Sirica, Steven J.; Schneider, William F., Convertible gas turbine propulsion system.
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Rolt, Andrew M, Engine.
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Stretton, Richard G., Gas turbine engine.
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Laborie, Daniel Jean-Louis, Gas turbine engine having a cooling-air nacelle-cowl duct integral with a nacelle cowl.
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Morford, Stephen A.; Larkin, Michael J., Gas turbine engine having slim-line nacelle.
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Morford, Stephen A.; Larkin, Michael J., Gas turbine engine having slim-line nacelle.
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Morford, Stephen A.; Larkin, Michael J., Gas turbine engine having slim-line nacelle.
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Morford, Stephen A.; Larkin, Michael J., Gas turbine engine having slim-line nacelle.
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Suciu, Gabriel L.; Snape, Nathan; Dye, Christopher M., Gas turbine engine oil tank.
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Suciu, Gabriel L.; Snape, Nathan; Dye, Christopher M., Gas turbine engine oil tank.
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Winter, Michael; Jain, Ashok K., Gas turbine engine providing simulated boundary layer thickness increase.
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Winter, Michael; Jain, Ashok K., Gas turbine engine system providing simulated boundary layer thickness increase.
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Rago, Guiseppe, Heat exchanger to cool turbine air cooling flow.
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Olver, Bryan W., Low profile bleed air cooler.
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Briese, William A.; Weber, Clifford J.; Pesek, Steven W., Material detection system.
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Jain, Ashok K.; Winter, Michael, Nacelle assembly having inlet airfoil for a gas turbine engine.
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Haas, Martin, Nacelle assembly having inlet bleed.
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Haas, Martin, Nacelle assembly with turbulators.
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Jain, Ashok K., Nacelle flow assembly.
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Jain, Ashok K., Nacelle flow assembly.
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Zysman, Steven H., Nacelle scoop inlet.
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Mylemans, John A, Oil cooler having adjustable heat transfer effectiveness.
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Dionne, Luc, Passive cooling system for auxiliary power unit installation.
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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Nacelle cooling and ventilation system 원문보기

초록 ▼

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Nacelle cooling and ventilation system 원문보기

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