[특허]Dual fuel mixer for gas turbine combustor

Dual fuel mixer for gas turbine combustor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-001/00
출원번호	US-0581818 (1996-01-02)
발명자 / 주소	Joshi Narendra D. (Cincinnati OH) Angel Paul R. (Fairfield OH) Caldwell James M. (Alexandria KY) Heberling Paul V. (Cincinnati OH) Dean Anthony J. (Scotia NY)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 57 인용 특허 : 0

초록 ▼

An air fuel mixer is disclosed having a mixing duct, a shroud surrounding the upstream end of the mixing duct in which a fuel manifold is provided in flow communication with a fuel supply and control means, a set of inner and outer counter-rotating swirlers adjacent the upstream end of the mixing duct for imparting swirl to an air stream, a hub separating the inner and outer annular swirlers to allow independent rotation of the air stream, and a centerbody located axially along and substantially the full length of the mixing duct. In order to inject one type of fuel into the mixing duct, fuel is supplied to the outer annular swirlers which include hollow vanes with internal cavities, wherein the internal cavities of the outer swirler vanes are in fluid communication with the fuel manifold in the shroud. The outer swirler vanes further include a plurality of fuel passages therethrough in flow communication with the internal cavities. A second fuel can be injected into the mixing duct by means of a plurality of orifices in the centerbody wall which are in flow communication with a fuel supply and control means. In this way, high pressure air from a compressor is injected into the mixing duct through the swirlers to form an intense shear region and fuel is injected into the mixing duct from the outer swirler vane passages and/or the centerbody orifices so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when a fuel/air mixture is exhausted out the downstream end of the mixing duct into the combustor and ignited.

대표청구항 ▼

An apparatus for premixing fuel and air prior to combustion in a gas turbine engine, comprising: (a) a linear mixing duct having a circular cross section defined by a wall; (b) a set of inner and outer annular counter-rotating swirlers adjacent the upstream end of said mixing duct; (c) a hub separating said inner and outer annular swirlers to allow independent rotation of an air stream through said swirlers; (d) a centerbody located along a central axis of said mixing duct and extending substantially the full length of said mixing duct, said centerbody further comprising: (1) a main fuel passage; (2) a plurality of fuel ducts located immediately downstream of said inner and outer annular swirlers in flow communication with said main fuel passage, said fuel ducts being oriented substantially radially outward and being positioned at designated locations circumferentially around said centerbody; and (3) at least two openings located immediately at the outer radial ends of said fuel ducts, wherein said openings are straight passages oriented with respect to each other so that fuel jets injected into said mixing duct therefrom impinge on each other to enhance atomization of the fuel in the mixing duct; and (d) a fuel supply in flow communication with said centerbody main fuel passage; wherein high pressure air from a compressor is injected into said mixing duct through said swirlers to form an intense shear region and fuel is injected into said mixing duct so that the high pressure air and the fuel is uniformly mixed therein so as to produce minimal formation of pollutants when the fuel/air mixture is exhausted out the downstream end of said mixing duct into the combustor and ignited.

이 특허를 인용한 특허 (57)

Rogers, Thomas J. C.; Twardochleb, Christopher Z.; Blust, James W.; Abreu, Mario E.; Cramb, Donald J., Acoustically tuned combustion for a gas turbine engine.
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Rogers, Thomas J. C.; Twardochleb, Christopher Z.; Blust, James W.; Abreu, Mario E.; Cramb, Donald J., Acoustically tuned combustion for a gas turbine engine.
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Angel Paul R. ; Caldwell James M. ; Joshi Narendra D. ; Marakovits Steven ; Foresman Kelley A. ; Goebel Steven G. ; Warren ; Jr. Richard E., Air fuel mixer for gas turbine combustor.
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Li, Suhui; Joshi, Narendra Digamber; McManus, Keith Robert, Air fuel premixer for low emissions gas turbine combustor.
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Lacy, Benjamin Paul; Ziminsky, Willy Steve; Johnson, Thomas Edward; Zuo, Baifang; York, William David; Uhm, Jong Ho, Bundled multi-tube nozzle for a turbomachine.
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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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Evulet, Andrei Tristan; Varatharajan, Balachandar; Kraemer, Gilbert Otto; ElKady, Ahmed Mostafa; Lacy, Benjamin Paul, Coanda pilot nozzle for low emission combustors.
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Jean-Herve Le Gal FR; Patrick Flament FR; Gerard Martin FR; Guy Grienche FR; Gerard Schott FR, Combustion chamber of a gas turbine working on liquid fuel.
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Kramer Stephen K. ; Hauck Peter F., Conical centerbody for a two stream tangential entry nozzle.
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Mao, Chien-Pei; Short, John Earl, Conical swirler for fuel injectors and combustor domes and methods of manufacturing the same.
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Popovic, Predrag; Baruah, Abinash, Diffusion nozzles for low-oxygen fuel nozzle assembly and method.
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Pfeffer, Brett A.; Ryon, Jason A., Flexible swirlers.
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Matusewicz, Robert; Reuter, Markus, Fluid cooled lances for top submerged injection.
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Sprouse, Kenneth M.; Matthews, David R.; Jensen, Robert J., Fluid injection and injection method.
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Sprouse, Kenneth M.; Matthews, David R.; Jensen, Robert J., Fluid mixing injector and method.
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Targoff, Jason A., Fuel combustion.
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Patel, Rajeshriben; Piper, James Scott; Alvarez, Raymond; Paydar, Rasoul; Srinivasan, Ram; Bahous, Edouard, Fuel delivery methods in combustion engine using wide range of gaseous fuels.
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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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Rackwitz, Leif, Fuel injection nozzle with film-type fuel application.
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Callas, James J.; Fiveland, Scott B.; Moffat, Robert J., Fuel injector arrangement having porous premixing chamber.
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Rogers, Thomas John Chipman, Fuel nozzle having swirler-integrated radial fuel jet.
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Abdel-Hafez, Ahmed A.; EL Kady, Ahmed Mostafa; Zong, Nan; Hook, Jr., Richard Bradford; Handelsman, Steven, Fuel-air mixer for use with a combustor assembly.
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Zupanc,Frank J.; Yankowich,Paul R., Fuel-air mixing apparatus for reducing gas turbine combustor exhaust emissions.
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Corr, II,Robert Anthony; Caron,Tim; Barnes,John, Fuel-air premixing system for a catalytic combustor.
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Oskam, Gareth W., Gas turbine and fuel injector for the same.
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Popovic, Predrag; Baruah, Abinash; Kraemer, Gilbert Otto; Ross, William Thomas, Gas turbine combustor having a fuel nozzle for flame anchoring.
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Burrus, David Louis; Joshi, Narendra Digamber; Haynes, Joel Meier; Feitelberg, Alan S., Gas turbine engine combustor can with trapped vortex cavity.
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Haynes, Joel Meier; Feitelberg, Alan S.; Burrus, David Louis; Joshi, Narendra Digamber, Gas turbine engine combustor can with trapped vortex cavity.
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Scarinci, Tomas, Gas turbine engine mixing duct and method to start the engine.
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Scarinci, Tomas, Gas turbine engine mixing duct and method to start the engine.
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Boulanov, Oleg; Ellison, Christopher, Internal combustion burner.
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Matusewicz, Robert; Reuter, Markus, Lances for top submerged injection.
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Oskam, Gareth W., Lean direct fuel injector.
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Alkabie, Hisham; McCaldon, Klan; Gandza, Victor; Hu, John, Low smoke and emissions fuel nozzle.
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Sprouse, Kenneth M.; Hartung, James A., Low-emission, staged-combustion power generation.
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Kraemer, Gilbert O.; Lacy, Benjamin; Lipinski, John Joseph, Method and apparatus for operating a turbine engine.
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Snyder Timothy S. ; Sowa William A. ; Kramer Stephen K., Method of disgorging flames from a two stream tangential entry nozzle.
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Farmer Gilbert ; Groeschen James A. ; Hoppa Jason P. ; Seto Stanford P. ; Al-Roub Marwan, Method of forming a swirler with as-cast holes.
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Oskam, Gareth W., Method of operating a gas turbine engine.
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Dimov, Mina; Angel, Paul R.; Marakovits, Steven; Brown, Daniel Dale, Methods and apparatus for operating gas turbine engines.
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Mark David Durbin ; Timothy James Held, Methods and apparatus for reducing gas turbine engine emissions.
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Mueller, Mark Anthony; Held, Timothy James; Kelsey, Mark Patrick, Methods and apparatus to facilitate decreasing combustor acoustics.
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Durbin, Mark David; Mongia, Hukam Chand, Multiple injector combustor.
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Lacy, Benjamin Paul; Kraemer, Gilbert Otto; Yilmaz, Ertan; Melton, Patrick Benedict, Nozzle for a turbomachine.
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Lacy, Benjamin Paul; Varatharajan, Balachandar; Ziminsky, Willy Steve; Kraemer, Gilbert Otto; Yilmaz, Ertan; Melton, Patrick Benedict; Zuo, Baifang; Stevenson, Christian Xavier; Felling, David Kenton; Uhm, Jong Ho, Pre-mixing apparatus for a turbine engine.
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Griffin,Timothy; Reiss,Frank; Winkler,Dieter, Premix burner.
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Heilos,Andreas; K��stlin,Berthold; Prade,Bernd, Premix burner and method for burning a low-calorie combustion gas.
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Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin Paul; York, William David; Uhm, Jong Ho; Zuo, Baifang, Premixed direct injection nozzle for highly reactive fuels.
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Evulet, Andrei Tristan, Premixing device for low emission combustion process.
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Ohri, Rajeev; Wetzl, Kristian I.; Reid, Herbert C.; Harris, Jr., Arthur J.; Parker, David M.; Mumford, Stephen E., Swirler assembly and combinations of same in gas turbine engine combustors.
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Martini, Jeffrey Michael; Boardman, Gregory Allen; Abd El-Nabi, Bassam Sabry Mohammad; Salazar-Lois, Gerardo Antonio, System and method having fuel nozzle.
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Matusewicz, Robert; Reuter, Markus, Top submerged injecting lances.
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Elkady, Ahmed Mostafa; Evulet, Andrei Tristan, Triple counter rotating swirler and method of use.
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Potnis, Shailesh Vijay; Joshi, Narendra Digamber, Turbine inlet air-cooling system and method.
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Stoia, Lucas John; Melton, Patrick Benedict; Johnson, Thomas Edward; Stevenson, Christian Xavier; Vanselow, John Drake; Westmoreland, James Harold, Turbomachine combustor nozzle including a monolithic nozzle component and method of forming the same.
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Zuo, Baifang, Turbomachine injection nozzle including a coolant delivery system.
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Dual fuel mixer for gas turbine combustor 원문보기

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