[특허]Combustor with fuel staggering for flame holding mitigation

Combustor with fuel staggering for flame holding mitigation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23R-003/28 F23R-003/34 F23R-003/16
출원번호	US-0333603 (2014-07-17)
등록번호	US-9416974 (2016-08-16)
발명자 / 주소	Toronto, David Kaylor Kim, Kwanwoo Khan, Abdul Rafey Flamand, Luis
출원인 / 주소	General Electric Company
대리인 / 주소	Sutherland Asbill & Brennan LLP
인용정보	피인용 횟수 : 0 인용 특허 : 98

초록 ▼

The present application provides a combustor. The combustor may include an air flow path with a flow of air therein. A flow obstruction may be positioned within the air flow path and cause a wake or a recirculation zone downstream thereof. A number of fuel injectors may be positioned downstream of the flow obstruction. The fuel injectors may inject a flow of fuel into the air flow path such that the flows of fuel and air in the wake or the recirculation zone do not exceed a flammability limit.

대표청구항 ▼

1. A combustor, comprising: an air flow path with a flow of air therein;a flow obstruction positioned within the air flow path;the flow obstruction causing a wake or a recirculation zone downstream thereof;a first fuel injector positioned downstream and outside of the wake or the recirculation zone of the flow obstruction, the first fuel injector configured to inject fuel at a first fuel rate; anda second fuel injector, adjacent to and axially aligned with the first fuel injector, positioned downstream and substantially in line with the flow obstruction, the second fuel injector within the wake or the recirculation zone of the flow obstruction, the second fuel injector configured to inject fuel at a second fuel rate;wherein the first and second fuel injectors are configured to inject a flow of fuel into the air flow path such that flows of fuel and air in the wake or the recirculation zone do not exceed a flammability limit therein; andthe first fuel rate is different than the second fuel rate; andwherein the first and second fuel injectors are configured to inject fuel into the air flow path at the same time and wherein the first and second fuel injectors comprise an airfoil-like shape, such that air flows about each side of the first and second fuel injectors. 2. The combustor of claim 1, wherein the first fuel rate is greater than the second fuel rate. 3. The combustor of claim 1, wherein the second fuel injector is axially aligned with the wake or the recirculation zone. 4. A combustor, comprising: an air flow path with a flow of air therein;a flow obstruction positioned within the air flow path;the flow obstruction causing a wake or a recirculation zone downstream thereof; anda plurality of fuel injectors positioned downstream of the flow obstruction;wherein one or more of the plurality of fuel injectors are positioned outside of the wake or the recirculation zone; andone or more of the plurality of fuel injectors are positioned within the wake or the recirculation zone and are axially aligned with the one or more of the plurality of fuel injectors positioned outside of the wake or the recirculation zone;the one or more fuel injectors positioned outside of the wake or the recirculation zone are configured to inject fuel at a first fuel level; andwherein the plurality of fuel injectors are configured to inject a flow of fuel into the air flow path such that flows of fuel and air in the wake or the recirculation zone do not exceed a flammability limit therein;the one or more fuel injectors positioned within the wake or the recirculation zone are configured to inject fuel at a second fuel level, wherein the second fuel level is different than the first fuel level; andwherein the plurality of fuel injectors are configured to inject a flow of fuel into the air flow path at the same time and the plurality of fuel injectors comprise an airfoil-like shape, such that air flows about each side of the plurality of fuel injectors. 5. The combustor of claim 4, wherein the first fuel level is greater than the second fuel level. 6. A combustor, comprising: an air flow path with a flow of air therein;a flow obstruction positioned within the air flow path;the flow obstruction causing a wake or a recirculation zone downstream thereof;a first fuel injector positioned downstream and outside of the wake or the recirculation zone of the flow obstruction, the first fuel injector configured to inject fuel at a first fuel rate; anda second fuel injector positioned further downstream relative to the flow of air than the first fuel injector and substantially in line with the flow obstruction, the second fuel injector configured to inject fuel at a second fuel rate;wherein the first and second fuel injectors are configured to inject a flow of fuel into the air flow path such that flows of fuel and air in the wake or the recirculation zone do not exceed a flammability limit therein; andwherein the first and second fuel injectors are configured to inject fuel into the air flow path at the same time and wherein the first and second fuel injectors comprise an airfoil-like shape, such that air flows about each side of the first and second fuel injectors. 7. The combustor of claim 6, wherein the first fuel rate is different than the second fuel rate. 8. The combustor of claim 6, the first fuel rate is substantially the same as the second fuel rate. 9. The combustor of claim 6, wherein the second fuel injector is positioned outside of the wake or the recirculation zone of the flow obstruction.

이 특허에 인용된 특허 (98)

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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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Combustor with fuel staggering for flame holding mitigation 원문보기

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Combustor with fuel staggering for flame holding mitigation 원문보기

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