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7568345 |
Effervescence injector for an aero-mechanical system for injecting air/fuel mixture into a turbomachine combustion chamber
A fuel injector for an aero-mechanical injection system for injecting an air/fuel mixture into a turbomachine combustion chamber, the injector comprising a main tubular structure of axis XX′...
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7540154 |
Gas turbine combustor
This invention aims to suppress the occurrence of smoke, for example, during a light load operation of a gas turbine, by adopting an air blast method for a pilot nozzle in a dual fuel combustion...
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7536862 |
Fuel nozzle for gas turbine engines
A gas turbine engine fuel nozzle includes an axis of symmetry extending therethrough, the nozzle body including a first passage extending coaxially therethrough, a second passage, and a third...
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7520134 |
Methods and apparatus for injecting fluids into a turbine engine
A method of operating a gas turbine engine is provided. The method includes discharging pilot fuel into a combustion chamber from a nozzle through at least one pilot fuel outlet defined in a tip of...
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7497012 |
Gas turbine fuel nozzle manufacturing
A method and a pre-shaped workpiece for making at least a portion of a gas turbine fuel nozzle are disclosed having opposed gripping tabs which can be secured to machine tool holders during...
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7406827 |
Apparatus for injecting a fuel-air mixture into a combustion chamber
In a fuel lance by means of which fuels can be injected, via at least two separate passages, into a combustion chamber alternately or simultaneously at an injection location arranged substantially...
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7377036 |
Methods for tuning fuel injection assemblies for a gas turbine fuel nozzle
A fuel nozzle assembly for a gas turbine includes a plurality of circumferentially spaced vanes with holes for flowing fuel from plenums within the vanes through holes in the vane walls for...
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7251940 |
Air assist fuel injector for a combustor
A fuel injector system provides an air assist fuel nozzle which includes a fuel shroud and an air portion. Air passes around the fuel shroud to air jets in the air portion to provide a focused...
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7249460 |
Fuel injection system for a turbine engine
To improve the burning efficiency of fuel supplied to a turbine engine by electronic fuel injectors under control of a fuel injection control system, a nebulizer of unique design is employed with...
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7165405 |
Fully premixed secondary fuel nozzle with dual fuel capability
A dual fuel premix nozzle and method of operation for use in a gas turbine combustor is disclosed. The dual fuel premix nozzle utilizes a fin assembly comprising a plurality of radially extending...
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7117679 |
Fuel injection
In order to allow dual fuel operation, that is to say gas and liquid fuel, a fuel injection arrangement and an assembly are provided in which an injection conduit provides constriction to an...
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7107771 |
Method for introducing fuel into a premix burner
A method and a device for the introduction of fuel into a premixing burner, with a pilot gas feed and a premix gas feed for the operation of a gas turbine in the entire load range, in which the...
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7082765 |
Methods and apparatus for reducing gas turbine engine emissions
A method enables a gas turbine engine to be assembled. The method comprises coupling a fuel nozzle within the engine to inject fuel into the engine, wherein the fuel nozzle includes three...
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7036302 |
Controlled pressure fuel nozzle system
A multi-staged gas turbine engine fuel supply system includes a plurality of fuel injectors and at least first and second staged fuel injection circuits in each of the fuel injectors. Each of the...
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7028484 |
Nested channel ducts for nozzle construction and the like
A multiple conduit system for a gas turbine engine, the multiple conduit system extending between a plurality of conduit inlet and outlets. A channel is formed in a surface of a gas turbine engine...
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7007864 |
Fuel nozzle design
The present invention relates to a fuel nozzle for use in an engine such as a gas turbine engine. The fuel nozzle includes a fuel injector for injecting fuel into a combustion chamber of the engine...
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7000403 |
Primary fuel nozzle having dual fuel capability
A fuel nozzle and gas turbine combustor capable of operating on multiple fuels with reduced carbon build-up to the fuel nozzle and adjacent combustor components is disclosed. The fuel nozzle...
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6959535 |
Differential pressure induced purging fuel injectors
A fuel injector includes an annular main fuel nozzle received within an annular nozzle housing, a main nozzle fuel circuit having at least one annular leg, and a pilot nozzle fuel circuit. Spray...
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6955040 |
Controlled pressure fuel nozzle injector
A multi-staged gas turbine engine fuel supply fuel injector includes at least first and second staged fuel injection circuits having first and second fuel injection points. At least first and...
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6945051 |
Low NOx emission diffusion flame combustor for gas turbines
A diffusion flame combustor for a gas turbine comprising a flame tube that delimits a combustion chamber, the flame tube having a fuel injector unit mounted at one end, the other end of the tube...
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6935117 |
Turbine engine fuel injector
A gas turbine engine is piloted with a pilot flow of fuel delivered to a combustor as a liquid. A first additional flow of the fuel is also delivered to the combustor as a liquid. A second...
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6931854 |
Combustor containing fuel nozzle
There is provided a combustor comprising a fuel nozzle which is comprised of a rodlike body which has a fuel passage and which is located in an air passage; a plurality of hollow members which are...
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6898926 |
Cooled purging fuel injectors
A fuel injector includes a main fuel nozzle with a main nozzle fuel circuit and a pilot nozzle fuel circuit in fuel supply communication with a pilot nozzle. The injector further includes a purge...
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6898937 |
Gas only fin mixer secondary fuel nozzle
A premix fuel nozzle and method of operation for use in a gas turbine combustor is disclosed. The premix fuel nozzle utilizes a fin assembly comprising a plurality of radially extending fins for...
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6895755 |
Nozzle with flow equalizer
A fuel injector for a gas turbine engine has an inlet fitting, a fuel nozzle, and a housing stem with a pair of fuel conduits fluidly interconnecting the nozzle and fitting. The fuel nozzle...
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6786046 |
Dual-mode nozzle assembly with passive tip cooling
A flame-holding nozzle for a combustion turbine engine is disclosed. The nozzle includes several elongated sleeves in a substantially concentric arrangement. The sleeves cooperatively provide...
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6775984 |
Full cooling of main injectors in a two-headed combustion chamber
An injector of a two-headed combustion chamber of a turbomachine has a first feed tube which is connected to an annular injection piece for discharging primary fuel into the combustion chamber. It...
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6763663 |
Injector with active cooling
An injector includes a plurality of flat, circular plates which provide fuel delivery and cooling of the injector. Fuel delivery passages in the plates have swirl chambers and spray orifices which...
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6755024 |
Multiplex injector
A multiplex injector system comprising an injector head, a first fuel path located in the injector head, and a first set of injector tips located in the injector head and in fluid communication...
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6718770 |
Fuel injector laminated fuel strip
A gas turbine engine fuel injector conduit includes a single feed strip having a single bonded together pair of lengthwise extending plates. Each of the plates has a single row of widthwise spaced...
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6672066 |
Multi-circuit, multi-injection point atomizer
A fuel injector nozzle for dispensing fuel in the combustion chamber of a gas turbine engine, includes an elongated, multi-layered, convoluted nozzle feed strip having an internal passage for...
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6666029 |
Gas turbine pilot burner and method
A dual circuit pilot burner fuel delivery arrangement ( 60 ) for a gas turbine engine combustor ( 18 ). A first fuel delivery circuit ( 64 ) delivers a gaseous fuel from a fuel supply ( 62 ) to a...
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6662565 |
Fuel injectors
A duplex fuel injector has concentric arrangement of an inner air swirler, an inner fuel injection port, an intermediate axial air filmer, a second air swirler, an outer fuel injection port and an...
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6655145 |
Fuel nozzle for a gas turbine engine
A fuel nozzle for a gas turbine engine injects a liquid fuel flow from a liquid fuel passage in the swirler vane. An air flow over the swirler vane atomizes the liquid fuel flow to form a fuel air...
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6640548 |
Apparatus and method for combusting low quality fuel
A gas turbine ( 12 ) capable of combusting a low quality gaseous fuel having a ratio of flammability limits less than 2, or a heat value below 100 BTU/SCF. A high quality fuel is burned...
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6609380 |
Liquid fuel nozzle apparatus with passive protective purge
In a gas turbine having a compressor, a combustor and a turbine, a gaseous fuel supply coupled to provide gaseous fuel to the combustor, a liquid fuel supply coupled to provide liquid fuel to the...
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6595000 |
Method of assembling a fuel injector for the combustion chamber of a turbomachine
An assembly method in which a brazing metal is initially filled into radial wells pierced in an annular injection piece having first injection orifices for discharging a primary fuel, and in a...
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6543235 |
Single-circuit fuel injector for gas turbine combustors
A single circuit fuel injector apparatus having a bifurcated recirculation zone is provided. The single circuit injector includes an injector tip having an aft facing tapered surface which is...
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6539721 |
Gas-liquid premixer
A fuel and gas mixer for a gas turbine combustor includes a body member. The body member has a truncated conical annulus, with its smaller end which communicates with a smaller end of a downstream...
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6532726 |
Gas-turbine engine combustion system
A gas-turbine engine combustion system has a combustor with a burner head having both pilot gas and pilot liquid-fuel injection arrangements, the pilot gas arrangement comprising an annular gallery...
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6457316 |
Methods and apparatus for swirling fuel within fuel nozzles
Gas turbine engine fuel nozzles are illustrated which induce swirling to fuel flowing to the engine to facilitate reducing fuel coking. Each fuel nozzle includes an inlet, an outlet and a fuel...
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6438961 |
Swozzle based burner tube premixer including inlet air conditioner for low emissions combustion
A burner for use in a combustion system of a heavy-duty industrial gas turbine includes a fuel/air premixer having an air inlet, a fuel inlet, and an annular mixing passage. The fuel/air premixer...
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6434945 |
Dual fuel nozzle
A dual fuel nozzle is provided with two different size injection holes. The first injection holes have larger diameters and are used only for injecting gaseous fuel into a combustion chamber. On...
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6427447 |
Bulkhead for dual fuel industrial and aeroengine gas turbines
An improved bulkhead for dual fuel industrial and aeroengine gas turbines, that may be formed by one or more bulkhead elements. Each element has a fuel-air channel, having an inlet for introducing...
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6418724 |
Method and apparatus to homogenize fuel and diluent for reducing emissions in combustion systems
A method and apparatus for reducing emissions in combustion systems, particularly gas turbines. A mixture of diluent and fuel is created, wherein the diluent and the fuel are at a predetermined...
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6405536 |
Gas turbine combustor burning LBTU fuel gas
A gas turbine combustor burning LBTU fuel gas serves to be applied to the combustion system of a small turbogenerator. The combustion system is composed of a combustor outer case, a combustor...
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6367239 |
Fuel delivery systems and method
A fuel delivery system and method for operating a dual fuel and steam turbine engine that utilizes gas fuel at the engine start phase through a combination of gas and liquid fuel circuits. Gas fuel...
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6363725 |
Pre-mixing chamber for gas turbines
A pre-mixing chamber ( 10 ) for gas turbines, wherein the gas turbine is of the type which comprises at least one compressor connected to the turbine, and a combustion chamber, wherein the...
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6345505 |
Dual fuel mixing in a multishear fuel injector with a plurality of concentric ducts
A fuel/mixer injection system for a combustor of a gas turbine engine comprising two major assemblies including a burner-mounted swirler with two outer air passages surrounding a central passage...
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6295801 |
Fuel injector bar for gas turbine engine combustor having trapped vortex cavity
A fuel injection system for a gas turbine engine combustor, wherein the combustor includes a dome inlet module having a plurality of flow passages formed therein and at least one cavity formed in a...
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