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| Number | Title | Issue Date |
| 8156742 | Fuel-injection device in a turbomachine A fuel-injection device in a turbomachine is disclosed. The device includes a high-pressure pump supplying a flow control valve, whose outlet is connected via a pressurization and cut-off valve to a fuel-injector feed pipe. The valve is connected to the inlet and to... | 04/17/2012 |
| 8146365 | Fuel nozzle providing shaped fuel spray A fuel injection nozzle for a gas turbine engine has a central fuel ejection nozzle and a plurality of airflow passages within the spray tip that include a first and second group of circumferentially spaced apart fuel-spray forming airflow passages disposed on oppos... | 04/03/2012 |
| 8141363 | Apparatus and method for cooling nozzles A nozzle includes a nozzle body and a cavity defined at least in part by the nozzle body. A plenum extends through the nozzle body into the cavity. At least one passage through the plenum provides fluid communication between the plenum and the cavity. Orifices throu... | 03/27/2012 |
| 8132415 | Fuel nozzle of gas turbine combustor for DME and design method thereof Disclosed herein are a fuel nozzle of a gas turbine combustor for dimethyl ether (DME, CH3OCH3) and a design method thereof. The fuel nozzle includes a pilot fuel injection hole formed at the center of the nozzle and a plurality of fuel injecti... | 03/13/2012 |
| 8122720 | Fuel nozzle apparatus, gas turbine, and method of controlling fuel nozzle apparatus There are provided a fuel nozzle apparatus, a gas turbine, and a method of controlling a fuel nozzle apparatus, that prevent an occurrence of caulking while meeting the requirements of exhaust gas regulations. There are provided: a fuel pump that feeds fuel; a fuel ... | 02/28/2012 |
| 8047003 | Combustor, gas turbine combustor, and air supply method for same A combustor comprises a liquid fuel nozzle for injecting liquid fuel to a combustion chamber, and an air supply nozzle disposed around the liquid fuel nozzle and injecting air. The air supply nozzle is disposed such that air is injected from the air supply nozzle in... | 11/01/2011 |
| 8042339 | Lean direct injection combustion system The present invention is directed to a lean direct injection (LDI) combustion system for a gas turbine using a shell and tube heat exchanger concept to construct a shell and tube lean direct injector (“LDI”) for the combustion system. One side of the LDI injecto... | 10/25/2011 |
| 8020384 | Fuel injector nozzle with macrolaminate fuel swirler A fuel injector nozzle for dispensing fuel in the combustion chamber of a gas turbine engine, comprises a fluid feed conduit having at least one internal channel for the passage of fluid from an inlet end to an outlet end of the fluid feed conduit. The fluid feed co... | 09/20/2011 |
| 8015815 | Fuel injector nozzles, with labyrinth grooves, for gas turbine engines A fuel injector for a gas turbine engine of an aircraft, and more particularly a novel and unique heatshield structure for a fuel nozzle wherein a labyrinth seal is uniquely provided in the nozzle to isolate a portion of an insulating gap from an interface whereat f... | 09/13/2011 |
| 8015816 | Apparatus for discouraging fuel from entering the heat shield air cavity of a fuel injector A gas turbine fuel injector includes a nozzle body having a radially inner wall proximate to an internal air path and a radially outer wall. An insulative gap is defined between the radially inner and outer walls. The inner and outer walls are adapted and configured... | 09/13/2011 |
| 8011187 | Fuel injection method and apparatus for a combustor A combustor and injector system to inject a selected fuel into a combustor of a gas powered turbine. Generally, the injector is able to inject a selected fuel into a stream of an oxidizer to substantially mix the fuel with the oxidizer stream before any of the fuel ... | 09/06/2011 |
| 7966818 | Gas turbine combustion chamber with fuel injection over an entire combustion chamber annulus A gas turbine combustion chamber includes an annular combustion chamber (3) confined by an outer (1) and an inner combustion chamber wall (2) and is provided with several fuel injection nozzles (4). Air deflectors (6) are arranged ... | 06/28/2011 |
| 7966819 | Vibration damper for fuel injector Fuel injector assemblies with frictionally damped fuel supply members, including fuel feed strips. More particularly, the invention provides friction dampers and/or assemblies that frictionally damp movement of fuel supply members in at least one direction. Some of ... | 06/28/2011 |
| 7934381 | Fuel lance for a gas turbine installation and a method for operating a fuel lance A fuel lance for a gas turbine installation with sequential combustion, in which hot gas is produced in a first combustion chamber and expanded in a subsequent turbine, and then flows through a subsequent second combustion chamber in which the fuel lance for injecti... | 05/03/2011 |
| 7926280 | Interface between a combustor and fuel nozzle A floating collar assembly is provided comprising a substantially flat floating collar trapped between a heat shield and a dome panel of the combustor. Axial engagement between the floating collar and the fuel nozzle is maintained via a nozzle cap mounted over the f... | 04/19/2011 |
| 7926279 | Extended life fuel nozzle A gas sleeve (120) for a combustor (408) of gas turbine engine (400) attaches to a support housing (100) of the combustor (408) to convey a fuel gas and to fit within a fuel rocket (110). The gas sleeve (120) comprise... | 04/19/2011 |
| 7921649 | Mode suppression shape for beams A method for increasing and/or suppressing a natural frequency of a fuel injector feed strip while increasing in the axial direction the flexibility of the feed strip, without the use of additional structure or damping devices. More particularly, and by way of examp... | 04/12/2011 |
| 7908863 | Fuel nozzle for a gas turbine engine and method for fabricating the same A method for fabricating a secondary fuel nozzle assembly includes providing a nozzle portion defining a passageway configured to supply fuel. At least one peg is operatively coupled in fuel flow communication with the passageway. The at least one peg extends radial... | 03/22/2011 |
| 7900456 | Apparatus and method to compensate for differential thermal growth of injector components A fuel injector for a gas turbine engine is disclosed that includes an injector body having a bore, a fitting at an inlet end of the injector body for receiving fuel, an atomizer at an outlet end of the injector body for delivering atomized fuel to a combustor of th... | 03/08/2011 |
| 7891191 | Combustor, gas turbine combustor, and air supply method for same A combustor comprises a liquid fuel nozzle for injecting liquid fuel to a combustion chamber, and an air supply nozzle disposed around the liquid fuel nozzle and injecting air. The air supply nozzle is disposed such that air is injected from the air supply nozzle in... | 02/22/2011 |
| 7878000 | Pilot fuel injector for mixer assembly of a high pressure gas turbine engine A mixer assembly for a gas turbine engine, including: a primary fuel injector having a central axis for injecting a primary fuel spray into a primary air stream, wherein fuel is provided at a desired rate and droplets of the fuel spray are within a desired size rang... | 02/01/2011 |
| 7874157 | Coanda pilot nozzle for low emission combustors A low emission combustor includes a combustor housing defining a combustion chamber. A secondary nozzle is disposed along a centerline of the combustion chamber and configured to inject air or a first mixture of air and fuel on a downstream side of the combustion ch... | 01/25/2011 |
| 7854121 | Independent pilot fuel control in secondary fuel nozzle Disclosed herein is a fuel nozzle. The fuel nozzle includes a first fuel introduction location, a second fuel introduction location, and fuel passages. The first fuel introduction location is located radially about the fuel nozzle and is connected with a fuel passag... | 12/21/2010 |
| 7784282 | Fuel injector and method of assembling the same A fuel injector is provided. The fuel injector includes a nozzle, a cooling assembly, and a tip coupled to the nozzle. The tip includes a base including a cooling channel defined therein, a first transition member extending outwardly from the base and in flow commun... | 08/31/2010 |
| 7762070 | Pilot nozzle heat shield having internal turbulators A pilot nozzle heat shield includes a body having a first end for receiving a pilot nozzle and a second end including a flow tip. The body includes a plurality of internal turbulators circumferentially disposed about the internal peripheral surface of the body. The ... | 07/27/2010 |
| 7712313 | Fuel nozzle for a gas turbine engine In the fuel nozzle, the fuel is circulated in a helical path around the interface of a stem of the fuel nozzle and a flange for increase the cooling. ... | 05/11/2010 |
| 7703287 | Dynamic sealing assembly to accommodate differential thermal growth of fuel injector components A fuel injector for a gas turbine engine is disclosed which includes an inlet fitting for receiving fuel, a nozzle for issuing fuel into the gas turbine engine, an injector body extending between the inlet fitting and the nozzle and having and interior bore extendin... | 04/27/2010 |
| 7665305 | Valve assembly for modulating fuel flow to a gas turbine engine A valve assembly is disclosed for modulating the flow of fuel to a fuel nozzle at a high frequency or in a stepped manner to actively control combustion in a gas turbine engine which includes a valve housing defining an inlet portion for receiving fuel from a fuel s... | 02/23/2010 |
| 7624576 | Low smoke and emissions fuel nozzle A fuel nozzle having a fuel conveying member surrounded by a sheath. An air passage is defined between the fuel conveying member and the sheath for directing air to an air swirler provided at one end of the fuel conveying member. At one flow director is provided in ... | 12/01/2009 |
| 7559202 | Reduced thermal stress fuel nozzle assembly An assembly that includes two components joined by a pre-compressed braze where the compression in the braze is progressively relieved upon relative thermal expansion of the two components. Also disclosed is a process for producing a pre-compressed braze. ... | 07/14/2009 |
| 7533532 | 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 airflow towards an outlet. In an assembly a plurality of arrangements inclu... | 05/19/2009 |
| 7530231 | Fuel conveying member with heat pipe A fuel conveying member in a fuel system of a gas turbine engine includes a heat pipe disposed in heat transfer communication with a fuel flow passage of the fuel conveying member, such that heat is transferred by the heat pipe from a high temperature region to a lo... | 05/12/2009 |
| 7509808 | Apparatus having thermally isolated venturi tube joints A gas fuel injector includes a first header plate, a second header plate, and a plurality of venturi tubes. The second header plate is spaced downstream from the first header plate. The plurality of venturi tubes is sealably secured to the first and second header pl... | 03/31/2009 |
| 7506510 | System and method for cooling a staged airblast fuel injector A staged fuel injector is disclosed that includes a main fuel circuit for delivering fuel to a main fuel atomizer and a pilot fuel circuit for delivering fuel to a pilot fuel atomizer located radially inward of the main fuel atomizer. The pilot fuel circuit is in cl... | 03/24/2009 |
| 7469544 | Method and apparatus for injecting a fuel into a combustor assembly A combustor assembly including an injector element able to inject and substantially mix a fuel with a vitiated air stream, so that the substantially all of the fuel injected into the vitiated air stream reaches an auto ignition temperature before it combusts. Genera... | 12/30/2008 |
| 7430851 | Air and fuel venting device for fuel injector nozzle tip In a fuel injector assembly, for an internal combustion engine such as a gas turbine engine, a generally cylindrical air transfer sleeve is, in one embodiment, juxtaposed around a shroud, the sleeve having a peripheral inner recessed cavity, the outer end thereof en... | 10/07/2008 |
| 7415828 | Fuel nozzle sheath retention ring A gas turbine fuel nozzle comprises a body and a sheath adapted to surround the body. A snap-on device is provided for releasably retaining the sheath on the body. The snap-on device is displaceable between a first position for allowing the sheath to be fitted over ... | 08/26/2008 |
| 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 at the lance tip, reliable operation is achieved, without the risk of... | 08/05/2008 |
| 7370477 | Device for fastening a fluid duct to a turbojet casing A device for fastening a fluid duct such as a fuel duct in an orifice of a turbojet casing, the device comprising a ring screwed into the orifice of the casing and having an annular rim coming to bear against a washer at the end of the duct, and a nut screwed onto t... | 05/13/2008 |
| 7368164 | Smooth outer coating for combustor components and coating method therefor A coating and method for overcoating a TBC on a component used in a high-temperature environment, such as the combustor section of an industrial gas turbine. The coating defines the outermost surface of the component and is formed of at least two layers having diffe... | 05/06/2008 |
