[특허]Convectively cooled, single stage, fully premixed controllable fuel/air combustor with tangential admission

Convectively cooled, single stage, fully premixed controllable fuel/air combustor with tangential admission 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-009/26
출원번호	US-0779350 (1997-01-06)
발명자 / 주소	Mowill R. Jan,NLX
대리인 / 주소	Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
인용정보	피인용 횟수 : 69 인용 특허 : 0

초록 ▼

An annular combustor system is disclosed in use with a radial turbine-type gas turbine gas generator, the system having an annular housing defining a single stage combustor, an external fuel/air premixer system having a mixing chamber and a fuel valve under the control of a controller, to provide a preselected lean fuel/air ratio mixture for introduction to the combustion zone of the annular housing. A separate compressed air valve under the control of the controller can optionally be included. Compressed air conduits are used to channel a portion of the total compressed air flow to the premixer and the remainder to the dilution zone of the combustor, and a fuel conduit is used to deliver all of the fuel to the premixer. Convection cooling of the annular housing is accomplished using compressed air without diluting the fuel air ratio in the combustion zone. The premixer includes a venturi, and a fuel nozzle for spraying fuel into the venturi inlet along the venturi axis, the venturi axis being aligned substantially tangentially to the annular housing axis to provide a swirling admission of the fully premixed fuel/air mixture to the combustion zone. The venturi can include a flow-smoothing member and be heated to provide augmented vaporization of liquid fuels. The compressed air valve can be integrated with the premixer housing.

대표청구항 ▼

[ What is claimed is:] [1.] A process for operating a gas turbine gas generator module to lower NO.sub.X and unburned fuel and fuel by-products, the gas generator module for supplying hot combustion gases to means for a producing power, the module of the type having a cylindrical housing with an axis and defining a combustion chamber, the housing having at least one inlet port proximate one axial housing end, the chamber portion adjacent the one axial housing end comprising a combustion zone, and an exhaust port and at least one aperture proximate the other axial housing end, the chamber portion adjacent the other axial housing end comprising a dilution zone, the module also of the type having a spool including an air compressor, a turbine, and shaft means interconnecting the turbine and the air compressor, the process comprising the steps of:supplying compressed air flow from the air compressor and fuel flow to the vicinity of the housing;continuously premixing all the fuel flow with a portion of the compressed air flow outside the housing and injecting the resulting substantially non-swirling fuel/air mixture into the combustion zone through the housing inlet port in a direction to provide swirling combustion about the housing axis;admitting the remainder of the compressed air flow to the dilution zone through the aperture; andcontrolling fuel flow rate in accordance with the desired power level and permitting turbine speed and compressor speed to adjust accordingly, said compressed air flow changing in accordance with the compressor speed, so that a substantially constant fuel/air ratio is maintained over substantially the entire operating range of the gas generator module.

이 특허를 인용한 특허 (69)

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Huntington, Richard A.; Minto, Karl Dean; Xu, Bin; Thatcher, Jonathan Carl; Vorel, Aaron Lavene, System and method for a stoichiometric exhaust gas recirculation gas turbine system.
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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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연합인증

Convectively cooled, single stage, fully premixed controllable fuel/air combustor with tangential admission 원문보기

초록 ▼

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Convectively cooled, single stage, fully premixed controllable fuel/air combustor with tangential admission 원문보기

초록 ▼

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