[특허]Multi-venturi tube fuel injector for a gas turbine combustor

[미국특허] Multi-venturi tube fuel injector for a gas turbine combustor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-001/00 F02G-003/00
출원번호	US-0879059 (2004-06-30)
발명자 / 주소	Dinu,Constantin Alexandru
출원인 / 주소	General Electric Company
대리인 / 주소	Nixon &
인용정보	피인용 횟수 : 41 인용 특허 : 13

초록 ▼

A combustor for a gas turbine includes a main fuel injector for receiving compressor discharge air and mixing the air with fuel for flow to a downstream catalytic section. The main fuel injector includes an array of venturis each having an inlet, a throat and a diffuser. A main fuel supply plenum between forward and aft plates supplies fuel to secondary annular plenums having openings for supplying fuel into the inlet of the venturis upstream of the throat. The diffusers transition from a circular cross-section at the throat to multiple discrete angularly related side walls at the diffuser exits without substantial gaps therebetween. With this arrangement, uniform flow distribution of the fuel/air, velocity and temperature is provided at the catalyst inlet.

대표청구항 ▼

What is claimed is: 1. In a combustor for a gas turbine, a main fuel injector comprising at least one venturi including a convergent inlet, a throat, and a diffuser for flowing a fuel/air mixture therethrough in a generally axial direction for exit from said diffuser, said inlet having at least one fuel supply hole for supplying fuel into said venturi at a location axially upstream from said throat, and a plurality of fuel supply holes spaced one from the other about said inlet at locations axially upstream from said throat. 2. An injector according to claim 1 wherein said inlet and said throat are circular in cross-section. 3. An injector according to claim 1 wherein said one fuel supply hole is located axially closer to a plane normal to and passing through an inlet opening of the convergent inlet than a plane passing through and normal to the throat. 4. In a combustor for a gas turbine, a main fuel injector comprising: an array of venturis each including a convergent inlet, a throat, and a diffuser for flowing a fuel/air mixture therethrough in a generally axial direction for exit from said diffuser, a forward plate and an aft plate surrounded by an enclosure defining a fuel supply plenum between said plates; each said plate having a plurality of openings for receiving the venturis; each said venturi inlet having at least one fuel supply hole for supplying fuel from said fuel supply plenum into said venturi at a location axially upstream from said throat. 5. An injector according to claim 4 including a secondary plenum in communication with said fuel supply plenum and said fuel supply holes. 6. An injector according to claim 5 wherein each said venturi includes a venturi member about said convergent inlet, said member including an aperture in communication with said secondary plenum for supplying fuel thereto, said secondary plenum lying between said inlet and said member. 7. An injector according to claim 6 wherein said member and said inlet of each venturi are screw-threaded to one another. 8. An injector according to claim 6 wherein said member and said forward and aft plates are brazed to one another. 9. An injector according to claim 4 wherein said one fuel supply hole in said inlet is located axially closer to an entrance to said inlet than the throat. 10. In a combustor for a gas turbine, a main fuel injector comprising at least one venturi including a convergent inlet and a throat about an axis, and a diffuser for flowing a fuel/air mixture therethrough in a generally axial direction for exit from said diffuser, said convergent inlet being defined by a side wall spaced from said axis and having at least one fuel supply hole through said side wall for supplying fuel into said venturi at a location axially upstream from said throat. 11. An injection according to claim 10 including a plurality of fuel supply holes spaced one from the other about said inlet side wall at locations axially upstream from said throat. 12. An injector according to claim 10 wherein said inlet and said throat are circular in cross-section. 13. An injector according to claim 10 wherein said one fuel supply hole is located axially closer to a plane normal to and passing through an inlet opening of the convergent inlet than a plane passing through and normal to the throat. 14. An injector according to claim 10 including a forward plate and an aft plate surrounded by an enclosure defining a fuel supply plenum between said plates; said plate having an opening for receiving the venturi; said one fuel supply hole lying at a location axially upstream from said throat for supplying fuel from said fuel supply plenum into said venturi.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Kenneth Winston Beebe ; Leslie Boyd Keeling, Catalytic combustor flow conditioner and method for providing uniform gasvelocity distribution.
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Beebe Kenneth W. ; Hung Stephen L. ; Cutrone Martin B., Catalytic combustor with lean direct injection of gas fuel for low emissions combustion and methods of operation.
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Beebe Kenneth W. ; Hung Stephen L. ; Cutrone Martin B., Catalytic combustor with lean direct injection of gas fuel for low emissions combustion and methods of operation.
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Lawrence Kyle ; Lenertz James E., Combustor with dilution bypass system and venturi jet deflector.
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Mowill R. Jan,NLX, Convectively cooled, single stage, fully premixed controllable fuel/air combustor.
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Peter Stuttaford CA; Stephen Oliver Oikawa CA; David Edwin Cowburn CA, Diffusion mixer.
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Spadaccini Louis J. (Manchester CT), Flameholder for gas turbine engine.
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Beebe Kenneth W. (Saratoga NY), Gas turbine catalytic combustor with preburner and low NOx emissions.
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Inoue, Tsutomu; Yamazaki, Atsushi, Gas-turbine engine combustor.
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Beebe Kenneth W. (Galway NY), Multiple venturi tube gas fuel injector for catalytic combustor.
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Beebe Kenneth W. (Galway NY), Multiple venturi tube gas fuel injector for catalytic combustor.
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Mowill R. Jan,NLX, Premixer with dilution air bypass valve assembly.
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Chamberlain John (Lake Park FL), Staged combustor having aerodynamically separated combustion zones.
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이 특허를 인용한 특허 (41) 인용/피인용 타임라인 분석

Chila, Ronald James; Boardman, Gregory Allen; Westmoreland, James Harold, Air diffuser for a head end of a combustor.
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Johnson, Thomas Edward; Ziminsky, Willy Steve; Berry, Jonathan Dwight, Apparatus and method for mixing fuel in a gas turbine nozzle.
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Uhm, Jong Ho; Johnson, Thomas Edward, Apparatus for mixing fuel in a gas turbine.
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Storey,James M; Dinu,Constantin, Apparatus having thermally isolated venturi tube joints.
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Manoharan, Madanmohan; Kulkarni, Rahul R.; Bathina, Mahesh, Combustor.
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Melton, Patrick Benedict; Belsom, Keith Cletus; Stoia, Lucas John, Combustor.
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Stoia, Lucas John; Melton, Patrick Benedict; Westmoreland, III, James Harold, Combustor.
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Uhm, Jong Ho; Wu, Chunyang; Berry, Jonathan Dwight; Stewart, Jason Thurman, Combustor and method for conditioning flow through a combustor.
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Uhm, Jong Ho; Ziminsky, Willy Steve; Johnson, Thomas Edward; York, William David, Combustor and method for distributing fuel in the combustor.
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Berry, Jonathan Dwight; Hughes, Michael John, Combustor and method for purging a combustor.
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Berry, Jonathan Dwight, Combustor and method for supplying fuel to a combustor.
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Melton, Patrick Benedict; Ziminsky, Willy Steve; Boardman, Gregory Allen, Combustor and method for supplying fuel to a combustor.
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Stoia, Lucas John; Melton, Patrick Benedict, Combustor and method for supplying fuel to a combustor.
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Stoia, Lucas John; Melton, Patrick Benedict; Westmoreland, III, James Harold, Combustor and method for supplying fuel to a combustor.
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Westmoreland, III, James Harold; Melton, Patrick Benedict, Combustor and method for supplying fuel to a combustor.
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Rohrssen, Robert Joseph; Charters, Erich Daniel; Khan, Abdul Rafey; Melton, Patrick Benedict; Vanselow, John Drake, Combustor assembly for a turbomachine.
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Khan, Abdul Rafey; Crawley, Bradley Donald; Paniharam, Rajendra; Parsania, Nishant Govindbhai, Combustor having wake air injection.
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Popovic, Predrag; Baruah, Abinash, Diffusion nozzles for low-oxygen fuel nozzle assembly and method.
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Uhm, Jong Ho; Johnson, Thomas Edward; Kim, Kwanwoo; Zuo, Baifang, Dimpled/grooved face on a fuel injection nozzle body for flame stabilization and related method.
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Stoia, Lucas John; Bailey, Donald Mark; Bethke, Sven Georg; Bobba, Mohan Krishna, Fuel nozzle assembly with resonator.
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Johnson, Thomas Edward; Lacy, Benjamin; Stevenson, Christian, Internal baffling for fuel injector.
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Westmoreland, James Harold; Boardman, Gregory Allen; Melton, Patrick Benedict, Micromixing cap assembly.
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Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin; York, William David; Stevenson, Christian Xavier, Monolithic fuel injector and related manufacturing method.
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Boardman, Gregory Allen; Melton, Patrick Benedict; Westmoreland, James Harold, Multi-injector micromixing system.
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Ginesin, Leonid Yulevich; Shershnyov, Borys Borysovich; Subbota, Andrey Pavlovich; Valeev, Almaz Kamilevich, Multi-zone combustor.
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York, William David; Ziminsky, Willy Steve; Johnson, Thomas Edward; Lacy, Benjamin; Zuo, Baifang; Uhm, Jong Ho, Premixed direct injection disk.
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Kraemer, Gilbert Otto; Kraemer, Cristina Colindres, System and method employing catalytic reactor coatings.
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Uhm, Jong Ho; Johnson, Thomas Edward, System and method for reducing combustion dynamics and NOx in a combustor.
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Uhm, Jong Ho; Johnson, Thomas Edward; Zuo, Baifang; York, William David, System and method for reducing combustion dynamics in a combustor.
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Uhm, Jong Ho; Ziminsky, Willy Steve; Johnson, Thomas Edward; Srinivasan, Shiva; York, William David, System and method for reducing combustion dynamics in a combustor.
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Chila, Ronald James; Melton, Patrick Benedict; Boardman, Gregory Allen; Westmoreland, James Harold, System and method for tube level air flow conditioning.
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Westmoreland, James Harold; Chila, Ronald James; Boardman, Gregory Allen; Melton, Patrick Benedict, System and method having multi-tube fuel nozzle with multiple fuel injectors.
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Uhm, Jong Ho; Zuo, Baifang; York, William David; Srinivasan, Shivakumar, Turbine combustor configured for high-frequency dynamics mitigation and related method.
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[미국특허] Multi-venturi tube fuel injector for a gas turbine combustor 원문보기