[특허]Air fuel mixer for gas turbine combustor

[미국특허] Air fuel mixer for gas turbine combustor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-001/00
출원번호	US-0312373 (1994-09-26)
발명자 / 주소	Joshi Narendra D. (Cincinnati OH) Epstein Michael J. (West Chester OH) Ewbank Michael E. (Pittsburgh PA)
출원인 / 주소	General Electric Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 35 인용 특허 : 6

초록 ▼

An air fuel mixer having a mixing duct, a set of inner and outer counter-rotating swirlers at the upstream end of the mixing duct, and means for injecting fuel into the mixing duct is provided, wherein 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 fuel nozzle by means of a plurality of non-linear fuel spokes 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.

대표청구항 ▼

An apparatus for premixing fuel and air prior to combustion in a gas turbine engine, comprising: (a) a mixing duct having a longitudinal axis extending therethrough; (b) a set of inner and outer counter-rotating swirlers adjacent the upstream end of said mixing duct; (c) a fuel nozzle located axially along and forming a centerbody of said mixing duct; and (d) a plurality of fuel spokes extending radially outward from said fuel nozzle, each of said fuel spokes having a plurality of fuel insection holes formed therein, wherein said fuel spokes have a nonlinear configuration when viewed in an axial cross-section of said mixing duct in order to minimize distance between adjacent fuel injection holes within said mixing duct; 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 from said fuel spokes 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 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Joshi Narendra D. (Maineville OH) Ekstedt Edward E. (Montgomery OH), Air fuel mixer for gas turbine combustor.
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Beebe Kenneth W. (Galway NY) Gardy Victor R. (Shelburne VT), Dual fuel injector with premixing capability for low emissions combustion.
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Kesseli James B. (Mount Vernon NH) Norster Eric R. (Notts GB2), Gas turbine apparatus including fuel and air mixer.
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Bell ; III Albert H. (Birmingham MI) Hyde James C. (Sterling Heights MI), Gas turbine prechamber and fuel manifold structure.
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Kuwata Masayoshi (Ballston Lake) Mele Cheryl (Schenectady) Borkowicz Richard J. (Ballston Spa NY), Premixed secondary fuel nozzle with integral swirler.
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Borkowicz Richard J. (Ballston Spa NY), Two stage (premixed/diffusion) gas only secondary fuel nozzle.
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이 특허를 인용한 특허 (35) 인용/피인용 타임라인 분석

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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Huang, Yimin; Sullivan, Shaun; Finstad, Brian; Haplau-Colan, Alexander, Air-cooled swirlerhead.
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Huang, Yimin; Sullivan, Shaun; Finstad, Brian; Haplau-Colan, Alexander, Air-cooled swirlerhead.
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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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Popovic, Predrag; Baruah, Abinash, Diffusion nozzles for low-oxygen fuel nozzle assembly and method.
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Lockyer, John Frederick; Twardochleb, Christopher Zdzislaw; Abreu, Mario Eugene, End-fed liquid fuel gallery for a gas turbine fuel injector.
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Khan, Abdul Rafey; Ziminsky, Willy Steve; Wu, Chunyang; Zuo, Baifang; Stevenson, Christian Xavier, Flame tolerant secondary fuel nozzle.
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Pinson, Mark William; Jensen, Gregory Earl; Terry, Jason Charles, Fuel nozzle having swirler vane and fuel injection peg arrangement.
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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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Doerr,Thomas; Lazik,Waldemar, Gas turbine combustion chamber with defined fuel input for the improvement of the homogeneity of the fuel-air mixture.
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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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Rackwitz, Leif; Bagchi, Imon-Kalyan; Doerr, Thomas, Gas-turbine lean combustor with fuel nozzle with controlled fuel inhomogeneity.
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Oskam, Gareth W., Lean direct fuel injector.
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Frank J. Zupanc ; Rudolph Dudebout ; John J. Lipinski ; Ram Srinivasan, Low cost, low emissions natural gas combustor.
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Michael Jerome Foust ; Hukam Chand Mongia, Method and apparatus for controlling combustor emissions.
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Xu,Jun; Held,Timothy James, Method and apparatus for decreasing combustor acoustics.
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Michael Jerome Foust ; Hukam Chand Mongia, Method and apparatus for decreasing combustor emissions.
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Lanier, William Steven; Ahlgren, Frederic Francis; Kircher, Theodore Paul, Method and apparatus for measuring and controlling selective catalytic reduction (SCR) emission control systems.
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Michael Jerome Foust ; Hukam Chand Mongia, Method and apparatus for mixing fuel to decrease combustor emissions.
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Held, Timothy James; Mueller, Mark Anthony; Xu, Jun, Method and apparatus to decrease combustor emissions.
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Mancini, Alfred A.; Vermeersch, Michael L.; Thomsen, Duane D.; Danis, Allen M.; Cooper, James N.; Lohmueller, Steven J.; Mongia, Hukam C., Method and apparatus to decrease combustor emissions.
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Bibler, John D.; Held, Timothy J.; Mueller, Mark A., Method and apparatus to decrease gas turbine engine combustor emissions.
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Oskam, Gareth W., Method of operating a gas turbine engine.
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Held,Timothy James; Mueller,Mark Anthony; Xu,Jun, Method to decrease combustor emissions.
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Reback,Scott Mitchell; Sebeika,Stephen Thomas, Methods and apparatus for injecting cleaning fluids into combustors.
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Lacy, Benjamin Paul; Kraemer, Gilbert Otto; Yilmaz, Ertan; Melton, Patrick Benedict, Nozzle for a turbomachine.
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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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Milosavljevic, Vladimir; Persson, Allan; Persson, Magnus, Swirler with gas injectors.
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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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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Air fuel mixer for gas turbine combustor 원문보기