Fuel And Air Premixed Prior To Combustion Patents (Class 60/737)
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Patent number: 11939923Abstract: Provided is a liquid fuel injection body capable of further reducing a film thickness of an injected liquid fuel.Type: GrantFiled: December 28, 2020Date of Patent: March 26, 2024Assignee: IHI CORPORATIONInventor: Nagayoshi Hiromitsu
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Patent number: 11920791Abstract: A trapped vortex reverse flow combustor for a gas turbine includes a first dome structure having a plurality of first-dome vortex driver airflow openings for providing a first vortex generating mid airflow therethrough to a trapped vortex cavity. A second dome structure is arranged downstream of the first dome structure and includes a plurality of second-dome vortex driver airflow openings providing a first vortex generating outer airflow therethrough to the trapped vortex cavity, and a plurality of primary driver airflow openings providing a primary driver airflow therethrough radially inward of the trapped vortex cavity.Type: GrantFiled: February 9, 2023Date of Patent: March 5, 2024Assignee: GENERAL ELECTRIC COMPANYInventor: Nicholas R. Overman
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Patent number: 11920794Abstract: A bundled tube fuel nozzle is provided. The bundled tube fuel nozzle includes a first end wall, a second end wall, an outer band that extends between the first end wall and the second end wall, and an inner band that extends between the first end wall and the second end wall. The inner band is disposed within the outer band. A bellows wall is disposed between the inner band and the outer band. The bellows wall surrounds the inner band such that a first fuel plenum is defined annularly between the inner band and the bellows wall. The inner band defines a second fuel plenum that is in fluid communication with the first fuel plenum via one or more apertures defined in the inner band. A plurality of tubes extends in an axial direction between the first end wall and the second end wall within the second fuel plenum.Type: GrantFiled: December 15, 2022Date of Patent: March 5, 2024Assignee: GE Infrastructure Technology LLCInventors: Jonathan Dwight Berry, Johnie Franklin McConnaughhay
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Patent number: 11913646Abstract: A fuel injector system for a torch igniter includes an injector body centered on an axis, a receiving aperture formed in a cap of the torch igniter, an injector aperture, an air channel, a fuel channel, and a purge passage formed in a housing of the torch igniter and fluidly connected to a cooling air source. The injector body includes an axial wall at a first axial end of the injector body, an outer wall connected to the axial wall and extending along the axis transverse to the first wall, and an inner portion connected to the axial wall and extending along the axis transverse to the axial wall. An outer surface of the inner portion is spaced a distance from an inner surface of the outer wall, forming an insulating space between the outer wall and the inner portion.Type: GrantFiled: November 23, 2021Date of Patent: February 27, 2024Assignee: Delavan Inc.Inventors: Jason Ryon, Lev Alexander Prociw
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Patent number: 11906165Abstract: An engine can utilize a combustor to combust fuel to drive the engine. A fuel nozzle assembly can supply fuel to the combustor for combustion or ignition of the fuel. The fuel nozzle assembly can include a swirler and a fuel nozzle to supply a mixture of fuel and air for combustion. The fuel nozzle can include both a primary and secondary fuel passage, and an additional air passage to provide for greater flame control, fuel provision, or local fuel and air mixing prior to combustion.Type: GrantFiled: April 11, 2022Date of Patent: February 20, 2024Assignee: General Electric CompanyInventors: Michael T. Bucaro, Ajoy Patra, Pradeep Naik, Perumallu Vukanti, R Narasimha Chiranthan, Clayton S. Cooper, Michael A. Benjamin, Steven C. Vise, Manampathy G. Giridharan, Krishnakumar Venkatesan
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Patent number: 11905887Abstract: Multi-engine aircraft power and propulsion systems and methods of restarting an engine of a multi-engine aircraft during fight are provided. One such method comprises: determining a condition to the effect that a flame in the combustion equipment of the second gas turbine engine has been extinguished; responsive to the determination, supplying electrical power from the electrical energy storage system to one or more of the electric machines of the second gas turbine engine and operating said one or more electric machines as motors to limit a reduction in a speed of the one or more spools of the second gas turbine engine following extinguishment of the flame in its combustion equipment; and restarting the second gas turbine engine by relighting the combustion equipment of the second gas turbine engine.Type: GrantFiled: November 16, 2022Date of Patent: February 20, 2024Assignee: ROLLS-ROYCE plcInventors: Gareth E Moore, Paul R Davies, Stephen M Husband, David R Trainer, David P Scothern, Luke George, Douglas M M Herbert
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Patent number: 11898754Abstract: A combustor nozzle using fuel containing hydrogen, a combustor and gas turbine including the same are provided. The nozzle for a combustor configured to burn fuel containing hydrogen includes a fuel supply duct including a plurality of injection tubes through which air and fuel flow and a fuel passage through which fuel flows, a plurality of swirlers formed on a side surface of each of the plurality of injection tubes to guide air outside the injection tube to be introduced thereinto for swirling, and a plurality of fuel inlet holes formed radially through the injection tube to communicate with the fuel passage and allow fuel to flow through the fuel passage to the injection tube.Type: GrantFiled: March 25, 2022Date of Patent: February 13, 2024Assignee: DOOSAN ENERBILITY CO., LTD.Inventor: Ho Keun Kim
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Patent number: 11885496Abstract: A fluid nozzle includes a first fluid circuit, a second fluid circuit spaced apart from the first fluid circuit and a fuel circuit. The fuel circuit is defined between the first and second fluid circuits and between a first fuel circuit wall and a second fuel circuit wall. A ring-shaped permeable barrier is positioned between the first and second fuel circuit walls configured and adapted to provide a controlled resistance to fuel flow. A fuel distributor includes a first fuel circuit wall and a second fuel circuit wall spaced apart from the first fuel circuit wall. A fuel circuit is defined between the first and second fuel circuit walls. A ring-shaped permeable barrier is positioned between first and second fuel circuit walls. A combustion assembly includes a combustor housing, a combustor dome positioned at an upstream end of the combustor housing, and a fluid nozzle positioned adjacent the combustor dome.Type: GrantFiled: April 28, 2021Date of Patent: January 30, 2024Assignee: Collins Engine Nozzles, Inc.Inventors: Lev A. Prociw, Jason Ryon, Philip E. O. Buelow
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Patent number: 11873993Abstract: A combustor includes a liner defining a combustion chamber. An air and fuel mixing body is received within the liner and upstream of the combustion chamber. The mixing body has a center axis and includes a bluff-body. A plurality of fuel injection ports on the bluff-body communicate with a central fuel supply such that fuel passes from the fuel supply passage and into a mixing chamber with a component in an axially downstream direction and a radially outward direction relative to said central axis. A plurality of inner air swirlers provide air into the mixing chamber with a component in an axially downstream direction, a radially outward direction, and with a circumferential component due to swirler structure. The fuel injection ports are downstream of an outlet of the inner air swirlers.Type: GrantFiled: February 2, 2023Date of Patent: January 16, 2024Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Alain Athanase Fossi
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Patent number: 11873761Abstract: A liquid fuel injector includes a cylindrical primary fuel injecting body having a central axis; an annular shroud concentrically placed radially outside; and an annular secondary fuel injecting body placed concentrically with the primary fuel injecting body and the shroud between the primary fuel injecting body and the shroud. A plurality of inner swirlers placed at equal intervals in a circumferential direction are provided in an annular inner air passage formed between the primary fuel injecting body and the secondary fuel injecting body, and a plurality of outer swirlers placed at equal intervals in the circumferential direction are provided in an annular outer air passage formed between the secondary fuel injecting body and the shroud. The primary fuel injecting body is formed as a pressure spray-type injector, and the secondary fuel injecting body and the inner and outer air passages cooperatively constitute an airblast-type injector.Type: GrantFiled: December 29, 2021Date of Patent: January 16, 2024Assignee: IHI CORPORATIONInventors: Takehiko Watase, Kouta Kanai, Nagayoshi Hiromitsu, Junya Kowa, Shinichiro Ishizaki, Katsuyoshi Takahashi, Tomohiro Ide, Shonosuke Kita, Mitsunori Itoh, Yuki Iwaki, Narumi Ando, Hitoshi Hattori, Kazuo Yonekura
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Patent number: 11859815Abstract: A system and method for flaring with a flare including a flare stack and a flare tip at a well site having a wellhead and a wellbore for production of crude oil or natural gas, or both, providing produced fluid including hydrocarbon from the wellhead to the flare stack, discharging the produced fluid from the flare tip through a nozzle discharge opening, combusting the hydrocarbon of the produced fluid as discharged from the flare tip, and a control system adjusting flow area of the nozzle discharge opening.Type: GrantFiled: May 18, 2021Date of Patent: January 2, 2024Assignee: Saudi Arabian Oil CompanyInventors: Omar Adnan Al-Shaiji, Khalid M. Alajmi, Omar M. Alhamid
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Patent number: 11859496Abstract: The present disclosure provides methods, assemblies, and systems for power production that can allow for increased efficiency and lower cost components arising from the control, reduction, or elimination of turbine blade mechanical erosion by particulates or chemical erosion by gases in a combustion product flow. The methods, assemblies, and systems can include the use of turbine blades that operate with a blade velocity that is significantly reduced in relation to conventional turbines used in typical power production systems. The methods and systems also can make use of a recycled circulating fluid for transpiration protection of the turbine and/or other components. Further, recycled circulating fluid may be employed to provide cleaning materials to the turbine.Type: GrantFiled: August 26, 2022Date of Patent: January 2, 2024Assignee: 8 Rivers Capital, LLCInventors: Miles R. Palmer, Jeremy Eron Fetvedt, Rodney John Allam
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Patent number: 11852031Abstract: An assembly is provided for a turbine engine. This turbine engine assembly includes a static structure, a conduit and a bracket. The static structure includes a port. The conduit extends longitudinally through the port. The bracket couples the conduit to the static structure. The bracket includes a first base mount, a second bade mount, a conduit mount, a first damper and a second damper. The first base mount is attached to the static structure. The second base mount is attached to the static structure. The conduit mount is mechanically coupled with the conduit. The first damper is between the first base mount and the conduit mount. The second damper is between the second base mount and the conduit mount.Type: GrantFiled: August 3, 2021Date of Patent: December 26, 2023Assignee: Pratt & Whitney Canada Corp.Inventors: Mateusz Pelc, Julien Girard
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Patent number: 11852075Abstract: A turbomachine fuel injector system includes an air distributor configured to be mounted to and contained within a casing and to provide air to mix with a fuel from one or more fuel distribution systems. The system includes a fuel manifold configured to be mounted indirectly to the casing such that the fuel manifold system is contained within the casing but is independent such that fuel manifold does not touch or directly mount to either an interior of the casing or touch the air distributor within the casing to prevent or reduce thermal transfer from the air distributor to the fuel manifold.Type: GrantFiled: April 13, 2021Date of Patent: December 26, 2023Assignee: Collins Engine Nozzles, Inc.Inventors: Jacob Greenfield, Jason A. Ryon, Lev A. Prociw
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Patent number: 11846424Abstract: An injection nozzle installed in a combustor of a gas turbine to inject fuel and compressed air to a combustion chamber is provided. The injection nozzle includes an inlet portion into which fuel and compressed air are introduced, an outlet portion installed downstream of the inlet portion in a flow direction of fluid and configured to discharge the fuel and compressed air to the combustion chamber, and an intermediate portion obliquely installed between the inlet portion and the outlet portion and connected to each of the inlet portion and outlet portion.Type: GrantFiled: December 26, 2021Date of Patent: December 19, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Young Gun Go, Hyun Soo An
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Patent number: 11841141Abstract: An apparatus and method for a reverse flow combustor, the reverse flow combustor including a straight portion, a dilution portion and a curved portion. The reverse flow combustor receives a flow of fuel that is ignited and mixed with cooling air to form a flow of combustion gases. The flow of combustion gases travels through the reverse flow combustor to a turbine section of an engine.Type: GrantFiled: October 16, 2020Date of Patent: December 12, 2023Assignees: GENERAL ELECTRIC COMPANY, GE AVIO S.R.L.Inventors: Massimo Giovanni Giambra, Joseph Douglas Monty, Stephen John Howell
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Patent number: 11835234Abstract: A method of optimizing a premix fuel nozzle for a gas turbine is provided including the step of providing a nozzle that provides, when the gas turbine is in operation, an axial flow field of an air and fuel mixture flows through the burner tube and around the nozzle tip, and at least two recirculation zones with at least two differing radial extents as part of a toroidal vortex generated on the nozzle tip to provide strong flame holding and flame propagation.Type: GrantFiled: October 31, 2017Date of Patent: December 5, 2023Assignee: BEIJING HUATSING GAS TURBINE & IGCC TECHNOLOGY CO., LTDInventors: Robert Bland, John Battaglioli, Shanshan Zhang, Xiaochen Zha
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Patent number: 11808457Abstract: A hydrogen injection scheme can be employed via use of one or more injectors for injecting hydrogen to help entrain local mass while also generating local turbulence that can enhance mixing with a mixture of air and fuel to facilitate enhanced lean combustion, lower peak flame temperatures of combustion, and reduce nitrous oxide (NOx) emissions from the combustion of fuel. In some embodiments, the hydrogen can be injected to help transport heat released during combustion away from the injector to help avoid injector overheating as well. Different injectors can be utilized to provide a desired hydrogen injection scheme for a particular set of design and operational criteria for a gas turbine system or at least one combustion system that can be utilized in a gas turbine system.Type: GrantFiled: February 23, 2022Date of Patent: November 7, 2023Assignee: Air Products and Chemicals, Inc.Inventors: Mark Daniel D'Agostini, Anup Vasant Sane
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Patent number: 11788723Abstract: A system includes a combustor. The combustor has a combustor wall with a combustor dome at an upstream end of the combustor wall, and an outlet at a downstream end of the combustor wall opposite the upstream end. The combustor wall includes an inner wall portion and an outer wall portion defining an interior of the combustor therebetween. Each of the inner wall portion and outer wall portion extends from the combustor dome to the downstream end of the combustor wall. The combustor wall includes an air cooling passage embedded inside at least one of the inner wall portion and the outer wall portion. The air cooling passage extends from the upstream end of the combustor wall to the downstream end of the combustor wall.Type: GrantFiled: June 30, 2022Date of Patent: October 17, 2023Assignee: Collins Engine Nozzles, Inc.Inventors: Lev A. Prociw, Jason Ryon
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Patent number: 11725816Abstract: A heat shield panel for use in a gas turbine engine combustor is disclosed. In various embodiments, the heat shield panel includes a hot side, a cold side spaced from the hot side, a rail member disposed on the cold side proximate an outer perimeter, the rail member having an outer wall and an inner wall and an orifice extending through the rail member, from the inner wall to the outer wall, the orifice having an entrance portion having an entrance opening positioned on the inner wall and extending at least to an intermediate portion of the rail member and an exit portion having an exit opening positioned on the outer wall and extending at least to the intermediate portion of the rail member, the entrance portion of the orifice being angled relative to the exit portion of the orifice.Type: GrantFiled: June 10, 2022Date of Patent: August 15, 2023Assignee: Raytheon Technologies CorporationInventors: Jon E. Sobanski, Steven D. Porter
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Patent number: 11725821Abstract: A fuel nozzle device (100) for injecting liquid fuel into a combustion chamber (52) of a gas turbine engine (10) includes an outer tube (101), a rear end wall (102) closing a base end of the outer tube, a tapered conical tube (104) defining a first air passage (112) therein, and a second air passage (114) having an annular cross section jointly with the outer tube, a fuel passage (108) axially passed through the rear end wall, and leading to a fuel ejection port (109) directed toward an inner circumferential surface of a base end of the conical tube, a first air introduction passage (111) passed through the outer tube to communicate with the first air passage, and a second air introduction passage (113) passed through the outer tube to communicate with the second air passage.Type: GrantFiled: March 11, 2022Date of Patent: August 15, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Yasuharu Kamoi, Shinichi Kobayashi, Hideaki Nakano, Yukihito Koizumi, Shigeru Hayashi
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Patent number: 11725815Abstract: Disclosed herein is an apparatus. The apparatus comprises an injector coupled to a head portion of a combustion chamber, the injector comprising a plurality of injector elements distributed away from an inner annulus and in an outer annulus. A geometry of combustion chamber comprises a body portion, an optional shoulder portion, and a throat portion. An inner wall of combustion chamber converges radially inward towards the throat. The plurality of injector elements in combination with the geometry of the combustion chamber are configured to confine a predetermined percentage of mass flow associated with combustion to a predetermined outer annulus of the chamber.Type: GrantFiled: December 7, 2020Date of Patent: August 15, 2023Assignee: GTL COMPANYInventors: Eric Jacob, Joshua Batterson, Justin Guastaferro, Paul Gloyer
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Patent number: 11725820Abstract: A fuel injector assembly for a combustor of a gas turbine engine includes an annular body defining a hollow interior space, first and second openings to the interior space, and a chamber defining a fluid manifold. The first and second openings are respectively proximate opposite first and second ends of the annular body. The first end is upstream of the second end. The fuel injector assembly includes an annular fuel nozzle positioned in the interior space and spaced from the annular body. The annular fuel nozzle includes a plurality of fuel injection ports configured for injecting a fuel into the combustor. The fuel injector assembly also includes one or more fuel supply struts coupled to the annular fuel nozzle and the annular body. The fuel supply struts are coupled in fluid communication with the fluid manifold and the annular fuel nozzle for channeling a fuel therethrough.Type: GrantFiled: June 7, 2022Date of Patent: August 15, 2023Assignee: Thomassen Energy B.V.Inventors: Peter Stuttaford, Matthijs Rijkmans, Jacobus Nicolaas Adrianus Koomen, Tim Dammers, Diethard Jansen
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Patent number: 11719441Abstract: Systems and methods including a reformer stack extended around a combustion chamber. The reformer stack is configured to provide output products to the combustion chamber.Type: GrantFiled: January 4, 2022Date of Patent: August 8, 2023Assignee: General Electric CompanyInventors: Honggang Wang, Michael Anthony Benjamin
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Patent number: 11708973Abstract: A fuel burner includes a tube extending from a first end to a second end and having an outer surface and an inner surface defining a central passage. The central passage is supplied at the first end with a mixture of air and combustible fuel pre-mixed upstream of the tube. The second end is closed by an end wall in a fluid-tight manner. The tube includes fluid directing structure for directing the pre-mixed mixture radially outward from the central passage to an exterior of the tube such that the pre-mixed mixture rotates radially about the central axis along the exterior of the tube.Type: GrantFiled: March 23, 2020Date of Patent: July 25, 2023Assignee: BECKETT GAS, INC.Inventor: Michael J. O'Donnell
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Patent number: 11703226Abstract: A gas turbine combustor includes a burner composed of a fuel nozzle group having a plurality of fuel nozzles for fuel supply, a fuel nozzle plate structurally supporting the fuel nozzles and serving to distribute the fuel flowing from an upstream side to the fuel nozzles, and a perforated plate located downstream of the fuel nozzles and having nozzle holes corresponding to the fuel nozzles. The fuel nozzle group includes outer circumferential fuel nozzles and inner circumferential fuel nozzles. Each outer diameter of at least a proximal end of the outer circumferential fuel nozzles is larger than that of the inner circumferential fuel nozzles.Type: GrantFiled: January 12, 2021Date of Patent: July 18, 2023Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Satoshi Kumagai, Yoshihide Wadayama, Keisuke Miura
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Patent number: 11692711Abstract: A pilot burner for a combustor includes an inner conduit configured to deliver a fuel, and an outer conduit concentric with the inner conduit and configured to deliver air. An inner wall defines an inner plenum, and a partition wall is radially outward of the inner wall and defines an intermediate plenum with at least a portion of the inner wall. Exit passages fluidly couple the inner plenum to the intermediate plenum. An outer wall defines an outer plenum with at least a portion of the partition wall. A crossover section includes passages fluidly coupling the inner conduit to the outer plenum, and passages fluidly coupling the outer conduit to the inner plenum. An end plate includes openings to direct fuel, air for combustion, and air for cooling from the respective plenums.Type: GrantFiled: August 13, 2021Date of Patent: July 4, 2023Assignee: General Electric CompanyInventors: Patrick Thomas Monaghan, Holger Matthias Luebcke, Andre Theuer, Nico Biagioli
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Patent number: 11692709Abstract: A mixer for blending fuel and air in a combustor of a turbine engine. The mixer includes a central body having a central passageway and a central axis. The mixer includes a plurality of tubes positioned radially around the central axis and circumferentially around a periphery of the mixer. Each of the tubes of the mixer includes opposed openings and a tangential opening. Each of the tubes of the mixer includes a cylindrical interior mixing passage configured to receive air flow from the opposed openings and the tangential opening and a fuel flow. The opposed openings are configured to spread the fuel flow laterally and the tangential opening is configured to spread the fuel flow tangentially.Type: GrantFiled: March 11, 2021Date of Patent: July 4, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Pradeep Naik, Manampathy G. Giridharan, Vishal Sanjay Kediya, Gregory A. Boardman
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Patent number: 11680522Abstract: A direct-fired gas turbine heater comprises a gas turbine engine, a main blower that receives cold air from the ambient, a mixing plenum that receives cold air from the main blower and hot gas from the turbine and delivers warm air, an air blower plenum that that receives cold air from the main air blower and delivers air to the mixing plenum, and an air intake plenum that receives cold air from the ambient and the air blower plenum and delivers cold air to a turbine compressor, an air intake valve, and an air starter valve. The gas turbine engine comprises the compressor that receives cold air, a fuel manifold that receives combustible fuel, a combustor that receives compressed air from the compressor and fuel from the fuel manifold, a turbine that receives hot gas from the combustor, and a shaft connecting the compressor and turbine.Type: GrantFiled: July 31, 2020Date of Patent: June 20, 2023Assignee: Dynamo IP Holdings, LLCInventors: Jason How-Ring Ethier, German Lakov, Ivan Wang
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Patent number: 11680709Abstract: A fuel injector is disclosed for reducing flashback. In an embodiment, the fuel injector may comprise an injector head with purge holes on a radial wall along a radial axis between an assembly axis of the fuel injector and a plurality of vanes arranged circumferentially around the assembly axis. In addition, the plurality of vanes may comprise fuel outlets connecting interior fuel passages to spaces between the vanes. The introduction of these purge holes near the bases of the vanes and the configuration and positioning of the fuel outlets in the vanes and elsewhere in the fuel injector may alter the stoichiometry (e.g., fuel-air ratio) within the premix passage of the fuel injector to reduce flashback. A plurality of such fuel injectors may be used in the combustor of a gas turbine engine.Type: GrantFiled: October 26, 2020Date of Patent: June 20, 2023Assignee: Solar Turbines IncorporatedInventors: Michael J. Ramotowski, Paul Economo, Christian Di Norscia, Donald J. Cramb, Nathan J. Kirksey
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Patent number: 11680710Abstract: A fuel nozzle, a fuel nozzle module having the same, and a combustor are provided. The fuel nozzle includes a nozzle cylinder having a space through which fuel flows and a plurality of fuel holes through which the fuel flows in a surface, a shroud spaced apart from the nozzle cylinder and formed to surround the nozzle cylinder in a longitudinal direction of the nozzle cylinder, and a mixing flow path formed between the nozzle cylinder and the shroud to mix the fuel supplied through the plurality of fuel holes and compressed air supplied from a compressor.Type: GrantFiled: December 14, 2021Date of Patent: June 20, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventor: Dong Sik Han
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Patent number: 11662095Abstract: A fuel nozzle includes a shroud; an injection cylinder surrounded by the shroud and configured to supply fuel to a combustion chamber; a swirler disposed between the injection cylinder and the shroud; and a porous disk disposed downstream of the swirler to surround an outer peripheral surface of the injection cylinder in order to prevent a flashback phenomenon occurring due to a reduction in pressure around the swirler. The porous disk includes a disk body to block a flame produced in the combustion chamber, and a plurality of flow holes are formed in the disk body through which the fuel flows. It is possible to prevent flashback by installing the porous disk downstream of the swirler, and to impart linearity and a swirling effect to the fuel passing through the fuel nozzle by forming variously configured flow holes in the porous disk.Type: GrantFiled: October 15, 2021Date of Patent: May 30, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Moonsoo Cho, Inchan Choi
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Patent number: 11643970Abstract: A passive flow splitting system for use in a turbine engine control system to provide split fuel flow to two fuel manifolds to supply primary and secondary fuel injectors for the particular combustion zones thereof utilizing intentionally different split ratios dependent on ascending or descending combustion fuel flow is provided. The system includes a passive fuel divider valve (FDV) that includes a primary piston and a secondary piston. The primary piston is moveable independently from the secondary piston during a portion of its stroke, and is hydro-locked to the secondary piston during another portion of its stroke. An ecology valve is also provided to purge the fuel from the primary and/or secondary manifolds during different modes of operation. A transfer valve is included to control the position of ecology piston of the ecology valve.Type: GrantFiled: December 8, 2021Date of Patent: May 9, 2023Assignee: Woodward, Inc.Inventors: Carthel C. Baker, Brett Flannery, Robert Mazza, Austin Wade Mueller, Michael L. Hahn, Grzegorz Pelc
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Patent number: 11608986Abstract: A combustor nozzle and a combustor for a gas turbine including the same are provided. The combustor nozzle may include a plurality of vanes disposed radially on an outer circumferential surface thereof, each vane including an internal cavity to which fuel is supplied, wherein the vane may include an airfoil in cross-section, wherein at least one of a pressure surface and/or a suction surface of the airfoil is disposed in a height direction thereof with a plurality of nozzle holes communicating with the cavity, wherein the vane may include a V-shaped nozzle hole including a pair of outlets on both sides of the airfoil based on a leading edge of the airfoil, wherein the V-shaped nozzle hole may form an angle (?) diverging outward with respect to a horizontal plane across the leading edge, and an acute angle (?) radially outward with respect to a vertical plane perpendicular to the horizontal plane.Type: GrantFiled: February 17, 2020Date of Patent: March 21, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventors: Alexander Myatlev, Yunyoung Doh, Borys Shershnyov
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Patent number: 11592182Abstract: A swirler assembly of a combustor of a gas turbine, the swirler assembly including a primary swirler having a primary swirler flow opening, and a swirler ferrule plate connected to an upstream side of the primary swirler. The swirler ferrule plate includes (a) a fuel nozzle opening, and (b) a plurality of oxidizer purge passages surrounding the fuel nozzle opening, each one of the plurality of oxidizer purge passages including (i) an inlet passage portion, and (ii) an outlet passage portion extended from the inlet passage portion to a downstream end of the swirler ferrule plate and having an outlet in fluid communication with the primary swirler flow opening. The outlet passage portion has an increasing cross-sectional area extending along the length of the outer passage portion from the inlet passage portion to the outlet that induces a pressure drop in a flow of oxidizer through the oxidizer flow passage.Type: GrantFiled: March 3, 2022Date of Patent: February 28, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Rimple Rangrej, Pradeep Naik, Perumallu Vukanti, Saket Singh
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Patent number: 11592180Abstract: A nozzle for a combustor in which a fuel containing hydrogen is burned is provided. The nozzle includes a first tube disposed in a center of the nozzle and having a first diameter, a plurality of second tubes circumferentially disposed around the first tube to be spaced apart from the first tube and each having a second diameter smaller than that of the first tube, and a plurality of third tubes disposed around the first tube and each having a diameter smaller than the second diameter, wherein the first tube, the plurality of second tubes, and the plurality of third tubes are arranged in parallel with each other.Type: GrantFiled: November 21, 2021Date of Patent: February 28, 2023Assignee: DOOSAN ENERBILITY CO., LTD.Inventor: Jungmin Seok
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Patent number: 11566532Abstract: A turbine clearance control system is provided. The turbine clearance control system includes a cooling air source and a turbine casing surrounding a portion of a turbine, wherein the turbine casing defines an integral cooling duct within the turbine casing, the integral cooling duct including apertures on an interior surface of the turbine casing.Type: GrantFiled: September 10, 2021Date of Patent: January 31, 2023Assignee: GE Avio S.r.l.Inventors: Agostino Scialpi, Daniele Coutandin, Matteo Renato Usseglio, Giuseppe Greco
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Patent number: 11566789Abstract: A ferrule in a fuel-air mixer assembly. The ferrule includes a body having (i) a plurality of channels having sidewalls, the plurality of channels leading to a corresponding plurality of exit openings, the plurality of channels configured to guide a first airflow therein and (ii) a plurality of cascade holes formed within the sidewalls of the plurality of channels and defining a plurality of passageways therein that are transverse to the plurality of channels. The ferrule also includes a plurality of airflow modifiers provided within the plurality of channels. The plurality airflow modifiers are configured to reduce a velocity of the first airflow when the first airflow exits through the plurality of exit openings and to generate low velocity vortex pairs to reduce interaction of the first airflow with a second airflow provided through primary vanes located downstream of the plurality of exit openings of the plurality of channels.Type: GrantFiled: March 18, 2022Date of Patent: January 31, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Saket Singh, Pradeep Naik, Rimple Rangrej, Ranganatha Narasimha Chiranthan, Veeraraju Vanapalli
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Patent number: 11558004Abstract: A thermophotovoltaic generator incorporating a two-stage combustor for providing heat to a thermophotovoltaic cell. Combustor parts include a partial oxidation reactor, which functions catalytically to convert a hydrocarbon fuel and a first supply of an oxidant into a gaseous partial oxidation product; and further include downstream thereof, a deep oxidation reactor including a premixer plenum fluidly connected to a heat spreader comprising a porous matrix, such as a ceramic foam. Functionally, the deep oxidation reactor converts the gaseous partial oxidation product and a second supply of oxidant into complete combustion products. Heat produced by the two-stage combustor generates radiative energy from a photon emitter, which is directly converted to electricity in a photovoltaic diode cell.Type: GrantFiled: February 24, 2020Date of Patent: January 17, 2023Assignee: Precision Combustion, Inc.Inventors: Subir Roychoudhury, Richard Mastanduno, Francesco Macri, Bruce Crowder
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Patent number: 11542871Abstract: An injection nozzle installed in a combustor of a gas turbine to inject fuel and compressed air into a combustion chamber is provided. The injection nozzle includes an inlet portion into which fuel and compressed air are introduced, an outlet portion disposed downstream of the inlet portion in a flow direction of fluid and configured to discharge the fuel and compressed air to the combustion chamber, and an intermediate portion disposed between the inlet portion and the outlet portion and connected obliquely to each of the inlet portion and outlet portion, wherein each of the inlet portion, the outlet portion, and the intermediate portion has a prismatic shape.Type: GrantFiled: December 26, 2021Date of Patent: January 3, 2023Assignee: DOSAN ENERBILITY CO., LTD.Inventors: Young Gun Go, Hyun Soo An
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Patent number: 11536191Abstract: An engine system includes an internal combustion engine, a fuel cell system, a first turbocharger and a second turbocharger. The internal combustion engine has an intake passage, and a first exhaust passage fluidly connected to the first set of combustion chambers. The first turbocharger has a first compressor and a first turbine. The second turbocharger has a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the fuel cell system, and the second turbine only receives exhaust flow from the internal combustion engine.Type: GrantFiled: May 28, 2021Date of Patent: December 27, 2022Assignee: Caterpillar Inc.Inventor: Christopher Lusardi
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Patent number: 11525396Abstract: A gas turbine engine includes combustion apparatus defining a volume, a compressor, a cooling air supply feed from the compressor, and a Helmholtz resonator. The Helmholtz resonator has a neck and a chamber having an attenuation volume and which is in fluid communication with the attenuation volume, the cooling air supply feed is connected to the Helmholtz resonator and includes a valve arrangement. In a first engine operating condition, the valve arrangement is closed and the Helmholtz resonator attenuates acoustic frequencies in a first range and, in a second engine operating condition, the valve arrangement is open whereby cooling air purges the attenuation volume and the Helmholtz resonator attenuates acoustic frequencies in a second range.Type: GrantFiled: July 18, 2018Date of Patent: December 13, 2022Assignee: Siemens Energy Global GmbH & Co. KGInventor: Ghenadie Bulat
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Patent number: 11525578Abstract: A combustor having bundled tube fuel nozzles is provided. At least one of the fuel nozzles has a dynamics-mitigating adapter removably coupled thereto. The adapter includes a mounting body defining at least one flow passage aligned with an inlet of at least one tube of the at least one fuel nozzle. The at least one flow passage extends an axial length of the at least one tube. The adapter may include extenders aligned with each tube of the fuel nozzle, and the extenders may have identical or different lengths. Adapters may be used for each fuel nozzle of the combustor. The mounting body may be a monolithic unit through which the flow passages are defined or may include a plurality of extenders affixed to and extending upstream of the mounting body.Type: GrantFiled: August 16, 2017Date of Patent: December 13, 2022Assignee: General Electric CompanyInventors: Jayaprakash Natarajan, Sven Georg Bethke
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Patent number: 11486580Abstract: A spacer for a fluid nozzle can include a body configured to fit within a sheath of the fluid nozzle such that a fluid tube positioned within the sheath is held bent over its longitudinal dimension by the body thereby altering a natural frequency of the fuel tube compared to if the fuel tube were not held bent.Type: GrantFiled: January 24, 2020Date of Patent: November 1, 2022Assignee: Collins Engine Nozzles, Inc.Inventors: Mark A. Caples, Andy W. Tibbs, Patrick Leer
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Patent number: 11466620Abstract: A support housing for use in distributing fuel in a gas turbine engine includes a main body defining an inlet aperture, a plurality of outlet apertures, and a substantially planar mounting surface. A first fuel channel has a wall that defines a first flow space and a support member extends across the first flow space and has a long axis oriented at an oblique angle with respect to the mounting surface.Type: GrantFiled: May 1, 2018Date of Patent: October 11, 2022Assignee: Siemens Energy, Inc.Inventors: Anand A. Kulkarni, Charalambos Polyzopoulos
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Patent number: 11454396Abstract: A fuel injector and mini-mixer system includes a mixing element tube configured to mix air and fuel prior to injecting the air and fuel into a combustor, an injector positioned within the mixing element tube, the injector being configured to inject a fluid into the mixing element tube, one or more air inlet slots positioned on one or more sides of the injector, one or more fuel injection holes configured to inject fuel into the mixing element tube, and one or more delta wing vortex generators positioned within an internal wall of the mixing element tube, the one or more delta wing vortex generators configured to generate a vortex pair that accelerates the mixing of air and fuel injected into the mixing element tube. Additional air slots can be provided downstream of the delta wing vortex generators to energize the vortex pair or lift fuel away to prevent flameholding.Type: GrantFiled: June 7, 2021Date of Patent: September 27, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Gregory A. Boardman, Vishal Sanjay Kediya, Pradeep Naik, Jeffrey M. Martini
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Patent number: 11454395Abstract: An air cap is configured to be affixed to a nozzle assembly as a downstream facing component of the nozzle assembly. The air cap includes a plurality of air wipe passages with outlets defined in a circumferential direction around a downstream facing surface of the air cap. A nozzle assembly can include an outer wall wherein the air cap is connected to the nozzle assembly outboard of the outer wall. An inner wall can be connected to the outer wall by a plurality of air swirl vanes. One or more fuel circuit components can be connected to the nozzle assembly inboard of the inner wall.Type: GrantFiled: April 20, 2021Date of Patent: September 27, 2022Assignee: Collins Engine Nozzles, Inc.Inventor: Steve J. Myers
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Patent number: 11428120Abstract: An assembly is provided for a turbine engine. This assembly includes a static structure, a conduit and a conduit bracket. The static structure includes a port. The conduit extends longitudinally through the port. The conduit bracket couples the conduit to the static structure. The conduit bracket includes a base mount, a conduit mount and a damper. The base mount is attached to the static structure. The conduit mount is attached to the conduit. The damper is between the base mount and the conduit mount. The damper includes a first leg, a second leg and a web. The first leg projects laterally out from the base mount. The second leg projects laterally out from the conduit mount. The web is longitudinally between and connected to the first leg and the second leg.Type: GrantFiled: August 3, 2021Date of Patent: August 30, 2022Assignee: Pratt & Whitney Canada Corp.Inventors: Julien Girard, Mateusz Pelc
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Patent number: 11428414Abstract: A nozzle tip for a premix fuel nozzle includes an outer body having an outer body external face facing the downstream end of the burner tube, the outer body external face having a smaller cross-sectional area than the cross-sectional area of the burner tube; and at least one segment radiating radially outwardly toward the internal wall of the burner tube from the outer body, wherein each segment has a proximal end disposed adjacent to the outer body external face and a distal end disposed in a direction toward the burner tube, wherein each segment has a segment downstream face angled relative to the longitudinal axis of the burner tube towards the downstream end of the burner tube. When the gas turbine is in operation, an axial flow field of an air and fuel mixture flows through the burner tube and around the nozzle tip, and two or more recirculation zones of differing radial extent are generated on the nozzle tip by the segments to provide strong flame holding and flame propagation.Type: GrantFiled: October 31, 2017Date of Patent: August 30, 2022Assignee: BEIJING HUATSING GAS TURBINE & IGCC TECHNOLOGY CO., LTDInventors: Robert Bland, John Battaglioli, Shanshan Zhang, Xiaoehen Zha
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Patent number: 11421599Abstract: A gas turbine combustor including a fuel injector having a plurality of annular fuel injection portions in each of which multiple fuel injection holes are formed, is provided with: an auxiliary fuel introduction passage for introducing an auxiliary fuel that is to be supplied to an auxiliary fuel injection portion that is a part of the plurality of annular fuel injection portions, into the fuel injector; a first main fuel introduction passage provided with a flow regulating valve for introducing a main fuel that is to be supplied to a main fuel injection portion that is an annular fuel injection portion other than the auxiliary fuel injection portion, into the fuel injector; and a second main fuel introduction passage provided with a flow regulating valve for introducing the main fuel that is to be supplied to the auxiliary fuel injection portion, into the fuel injector.Type: GrantFiled: November 12, 2019Date of Patent: August 23, 2022Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Atsushi Horikawa, Masahide Kazari, Kunio Okada, Kazuki Koga