Patent
Multi-venturi tube fuel injector for gas turbine combustors
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TLDR
In this paper, 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 there between.Abstract:
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 inlets of the venturis upstream of the throats. 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.read more
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Patent
Gas turbine combustor
Eigo Takasago Res. Dvlpt Ctre Mitsubishi Kato,Mitsuru Takasago Res. Dvlpt Ctre Mitsubishi Kondo,T. Takasago Res Dvlpt Ctre Mitsubishi Ishiguro,Masaki Ono,Tetsu Konishi,T. Takasago Machinery Works Mitsubishi Iwamoto +5 more
TL;DR: In this article, a gas turbine combustor with a fuel injection nozzle using a fluid other than liquid fuel to atomize the liquid fuel and that can suppress a reduction in power generation efficiency resulting from a heat loss while promoting the atomization of liquid fuel.
Patent
Premixed direct injection disk
William David York,Willy Steve Ziminsky,Thomas Edward Johnson,Benjamin Paul Lacy,Baifang Zuo,Jong Ho Uhm +5 more
TL;DR: In this paper, a fuel/air mixing disk for use in a fuel and air mixing combustor assembly is provided, which includes a first face, a second face, and at least one fuel plenum disposed there between.
Patent
Combustor and method for supplying fuel to a combustor
TL;DR: In this paper, a method for supplying fuel to a combustor includes flowing a working fluid through first and second sets of premixer tubes, flowing a first fuel into the first set of tubes, and flowing a second fuel through an annular passage surrounding the end cap and into the second set of pre-mixer tubes.
Patent
Combustor assembly for a turbomachine
Robert Joseph Rohrssen,Erich Daniel Charters,Abdul Rafey Khan,Patrick Benedict Melton,John Drake Vanselow +4 more
TL;DR: A combustor assembly for a turbomachine includes combustor housing (20), a flow sleeve (50), and a quaternary cap (64) arranged between the combustor house and a combustor line (34) as discussed by the authors.
Patent
Monolithic fuel injector and related manufacturing method
Willy Steve Ziminsky,Thomas Edward Johnson,Benjamin Paul Lacy,William David York,Christian Xavier Stevenson +4 more
TL;DR: In this paper, a fuel injection head for a fuel nozzle includes a substantially hollow vesicle body formed with an upstream end face, downstream end face and a peripheral wall extending therebetween, an internal baffle plate extending radially outwardly from a downstream end of the bore, terminating short of the peripheral wall, and a plurality of integral pre-mix tubes extend axially through the upstream and downstream fuel plenums.
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Catalytic combustor with lean direct injection of gas fuel for low emissions combustion and methods of operation
TL;DR: In this article, a post-catalytic combustion zone is proposed for a gas turbine with auto-ignition in the transition between the combustor and turbine. But the combustion reaction temperature is too low to produce thermal NOx.
Patent
Multiple venturi tube gas fuel injector for catalytic combustor
TL;DR: A fuel gas injector for a gas turbine engine employs a plurality of closely spaced parallel venturi tubes disposed in a pair of spaced-apart header plates, and the perimeters of the header plates are sealed to form a plenum into which pressurized gaseous fuel is supplied as mentioned in this paper.
Patent
Gas turbine catalytic combustor with preburner and low nox emissions
TL;DR: In this paper, the preburner products of combustion are mixed with a hydrocarbon fuel in the presence of a combustion catalyst to ignite and initiate a catalytic combustion reaction, and the pre-burner is then shut down.
Patent
Staged combustor having aerodynamically separated combustion zones
TL;DR: In this paper, a staged combustion chamber of the type employing staged combustion principles is described, and a specific objective is to separate staged combustion zones without the penetration of structural apparatus into the chamber.