[특허]Gas turbine combustor with turbulence enhanced mixing fuel injectors

[미국특허] Gas turbine combustor with turbulence enhanced mixing fuel injectors 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-001/00
출원번호	US-0554684 (1995-11-07)
발명자 / 주소	Sharifi Mehran (Winter Springs FL) Stokes Mitchell O. (Orlando FL) Foss David T. (Austin TX)
출원인 / 주소	Westinghouse Electric Corporation (Pittsburgh PA 02)
인용정보	피인용 횟수 : 42 인용 특허 : 0

초록 ▼

A combustor for a gas turbine having primary and secondary combustion zones. The combustor has primary gas fuel spray pegs for supplying a lean mixture of gaseous fuel to the primary combustion zone via a first annular pre-mixing passage and secondary fuel spray bars for supplying a lean mixture of fuel to the secondary combustion zone via a second annular pre-mixing passage. The fuel spray bars are aerodynamically shaped and a row of fuel discharge ports are formed on opposing sides of the spray bar. A pair of mixing fins project outwardly from the spray bar sides. The fins create turbulence in the air flow that ensures adequate mixing of the fuel and air. The fins have sufficient height and are displaced sufficiently far from the fuel discharge ports so that although the turbulence has not dissipated by the time the air flow reaches the fuel discharge ports, the zone of recirculation located downstream from the fins does not extend to the fuel discharge ports. This ensures that the spray bars will not act as flame holders and cause combustion to occur prematurely within the pre-mixing passage.

대표청구항 ▼

A combustor comprising: a) an inlet for receiving compressed air; b) a combustion zone; and c) fuel pre-mixing means for pre-mixing a fuel into at least a first portion of said compressed air so as to form a fuel/air mixture and for subsequently introducing said fuel/air mixture into said combustion zone, said fuel pre-mixing means including: (i) an annular passage in flow communication with said inlet and said combustion zone, whereby said first portion of said compressed air flows through said passage, and (ii) a plurality of members projecting substantially radially into said passage by a radial height, each of said members having (A) first and second opposing sides, (B) a first mixing fin having a downstream face projecting substantially perpendicularly from said first side of said member by a first distance and extending substantially radially along at least a portion of said radial height of said member, said mixing fin comprising a means for causing at least a portion of said compressed air to undergo turbulent recirculation, (C) a plurality of first fuel discharge ports spaced along and formed in said first side of said member, said first fuel discharge ports displaced from said first mixing fin in the downstream direction with respect to the flow of said first portion of said compressed air through said passage by a second distance.

이 특허를 인용한 특허 (42) 인용/피인용 타임라인 분석

Kim, Wookyung; Dai, Zhongtao; Kopp-Vaughan, Kristin, Angled radial fuel/air delivery system for combustor.
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Martin, Scott M.; Cai, Weidong; Harris, Jr., Arthur J., Apparatus and method for controlling the secondary injection of fuel.
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DiCintio, Richard Martin; Melton, Patrick Benedict; Stoia, Lucas John, Assemblies and apparatus related to integrating late lean injection into combustion turbine engines.
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DiCintio, Richard Martin; Melton, Patrick Benedict; Stoia, Lucas John, Assemblies and apparatus related to integrating late lean injection into combustion turbine engines.
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Milosavljevic, Vladimir; Persson, Allan; Persson, Magnus, Burner.
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Johnson,Thomas Edward; Widener,Stanley Kevin; McMahan,Kevin Weston, Burner tube and method for mixing air and gas in a gas turbine engine.
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Kashihara, Hiroyuki; Yoshino, Yasushi, Combustion device for annular injection of a premixed gas and method for controlling the combustion device.
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Madden Thomas J. ; Tuthill Richard S. ; Craig Harold M., Combustor bulkhead with improved cooling and air recirculation zone.
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Toronto, David Kaylor; Kim, Kwanwoo; Khan, Abdul Rafey; Flamand, Luis, Combustor with fuel staggering for flame holding mitigation.
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Toronto, David Kaylor; Kim, Kwanwoo; Khan, Abdul Rafey; Flamand, Luis, Combustor with fuel staggering for flame holding mitigation.
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Sharifi Mehran ; Zolyomi Wendel ; Whidden Graydon Lane, Combustor with two stage primary fuel assembly.
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Ghani, M. Usman; Gautier, Florian; Varagani, Rajani K.; Levesque, Susie; Labegorre, Bernard; Camy-Peyret, Frederic; Grillon, Sylvain; Pranda, Pavol, Device and method for efficient mixing of two streams.
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Verdouw, Albert J.; Smith, Duane; McCormick, Keith; Razdan, Mohan K., Dry low combustion system with means for eliminating combustion noise.
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Stuttaford, Peter J.; Jennings, Stephen; Green, Andrew; McMahon, Ryan; Chen, Yan; Rizkalla, Hany; Carella, John; Duraibabu, Vamsi; Spalding, Martin, Flamesheet combustor.
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Stoia, Lucas John; DeForest, Russell Pierson; Melton, Patrick Benedict, Flowsleeve of a turbomachine component.
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Rohrssen, Robert Joseph; Cihlar, David William; Melton, Patrick Benedict; Stoia, Lucas John, Fuel delivery system with moveably attached fuel tube.
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Toon, Ian J; Eadon, Gary; Graham, Andrew C; Salt, Allan J, Fuel injection.
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Toon,Ian J; Eadon,Gary; Graham,Andrew C; Salt,Allan J, Fuel injection.
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Dinu, Constantin; Bathina, Mahesh; Singh, Ramanand, Fuel injection for gas turbine combustors.
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Chin, Jushan; Rizk, Nader K.; Razdan, Mohan K.; Marshall, Andre W., Fuel premixing module for gas turbine engine combustor.
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Doerr, Thomas; Rackwitz, Leif; Lazik, Waldemar, Gas-turbine burner for a gas turbine with purging mechanism for a fuel nozzle.
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Rackwitz, Leif; Bagchi, Imon-Kalyan; Doerr, Thomas, Gas-turbine lean combustor with fuel nozzle with controlled fuel inhomogeneity.
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Byrne, William; Melton, Patrick Benedict; Cihlar, David William; Stoia, Lucas, Integrated late lean injection on a combustion liner and late lean injection sleeve assembly.
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Bagchi, Imon-Kalyan; Lazik, Waldemar, Lean premix burner of a gas-turbine engine provided with a flow-guiding element.
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Stuttaford,Peter; Margarit Bel,Nuria; Chen,Yan; Oumejjoud,Khalid; Jennings,Stephen, Method of operating a combustion system for increased turndown capability.
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Stuttaford,Peter J.; Jennings,Stephen; Chen,Yan, Method of operating a flamesheet combustor.
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Byron Andrew Pritchard, Jr. ; Allen Michael Danis ; Michael Jerome Foust ; Mark David Durbin ; Hukam Chand Mongia, Multiple annular combustion chamber swirler having atomizing pilot.
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Akagi, Kouichi; Ichiryu, Taku; Matsui, Kazuhiro, Pilot nozzle for a gas turbine combustor and supply path converter.
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Kraemer, Gilbert Otto, Rich burn, quick mix, lean burn combustor.
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Lawlor, Shawn P.; Steele, Robert C.; Kendrick, Donald, Rotary ramjet engine with flameholder extending to running clearance at engine casing interior wall.
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Parker, David M.; Cai, Weidong; Garan, Daniel W.; Harris, Arthur J., Secondary fuel delivery system.
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Milosavljevic, Vladimir; Persson, Allan; Persson, Magnus, Swirler with gas injectors.
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Melton, Patrick Benedict; Chila, Ronald James; Khan, Abdul Rafey; Antoniono, Carolyn Ashley, System and method for flow control in gas turbine engine.
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Melton, Patrick Benedict; Crawley, Bradley Donald; Cihlar, David William; Rohrssen, Robert Joseph; Chila, Ronald James, System and method for flow control in gas turbine engine.
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Cihlar, David William; Melton, Patrick Benedict; Rohrssen, Robert Joseph, System and method for turbine combustor mounting assembly.
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Moraes, Ricardo F., System for introducing fuel to a fluid flow upstream of a combustion area.
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Melton, Patrick Benedict; Vanselow, John; DeForest, Russell; Stoia, Lucas, Systems and methods for late lean injection premixing.
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Kendrick,Donald; Lawlor,Shawn P.; Steele,Robert C., Trapped vortex combustor.
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Singh, Arjun; Sardeshmukh, Swanand Vijay, Tubular fuel injector for secondary fuel nozzle.
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Haynes, Joel Meier, Turbine containing system and an injector therefor.
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Steele, Robert C.; Edmonds, Ryan G.; Williams, Joseph T.; Baldwin, Stephen P., Vortex combustor for low NOX emissions when burning lean premixed high hydrogen content fuel.
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Steele, Robert C.; Edmonds, Ryan G.; Williams, Joseph T.; Baldwin, Stephen P., Vortex combustor for low NOx emissions when burning lean premixed high hydrogen content fuel.
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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] Gas turbine combustor with turbulence enhanced mixing fuel injectors 원문보기