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公开(公告)号：US20180187894A1
公开(公告)日：2018-07-05
申请号：US15728009
申请日：2017-10-09
Applicant: General Electric Company
Inventor： Jun Cai , Andrew Grady Godfrey , Richard Martin DiCintio , Seth Reynolds Hoffman , Ronnie Ray Pentecost , Jayaprakash Natarajan , Wei Zhao
Abstract: A fuel injector is provided for the radial introduction of a fuel/air mixture to a combustor. The fuel injector includes a frame having interior sides defining an opening for passage of a first fluid; at least one fuel injection body; and a conduit fitting. The at least one fuel injection body is coupled to the frame and positioned within the opening, thereby defining flow paths for the first fluid. The at least one fuel injection body defines a fuel plenum, and a set of fuel injection holes are defined through an outer surface of the at least one fuel injection body. The conduit fitting is coupled to the frame and conveys fuel from a fuel supply line to the fuel plenum. Fuel and the first fluid mix in the flow paths and are delivered through the outlet to the combustor.
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公开(公告)号：US20230045965A1
公开(公告)日：2023-02-16
申请号：US17975110
申请日：2022-10-27
Applicant: General Electric Company
Inventor： Lucas John Stoia , Yimin Huang , Abdul Khan , Thomas Edward Johnson , Heath M. Ostebee , Jayaprakash Natarajan
Abstract: An igniter for a combustor of a turbomachine includes a fuel inlet in fluid communication with a mixing plenum. The mixing plenum is positioned upstream of a mixing channel. An air inlet is in fluid communication with the mixing plenum and an ignition source is in operative communication with the mixing channel. The igniter may include a mounting flange configured for coupling the igniter to the combustor. The ignition source may be positioned proximate to a downstream end of the mixing channel and upstream of the mounting flange. The mixing channel may define a venturi shape. The venturi shape includes a converging section between an upstream end of the mixing channel and a venturi throat.
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公开(公告)号：US11203986B1
公开(公告)日：2021-12-21
申请号：US16895619
申请日：2020-06-08
Applicant: General Electric Company
Inventor： David Leach , Valerie Suzanne Vernet , Jason Nathaniel Cook , Jayaprakash Natarajan
Abstract: A method of operating a rotary machine below a minimum emissions compliance load in a response mode includes reducing a fuel split to zero. The fuel split apportions a total flow of fuel to the combustor between a first combustion zone and a second combustion zone. The method also includes determining a current operating temperature of the first combustion zone using a digital simulation of the rotary machine. The method further includes determining a target operating temperature of the first combustion zone. The target operating temperature enables the rotary machine to operate below a traditional Minimum Emissions Compliance Load (MECL) while still in compliance with emissions standards. The method also includes channeling a first flow of fuel to the first combustion zone. The first flow of fuel decreases the temperature of the first combustion zone to the target operating temperature.
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公开(公告)号：US10690349B2
公开(公告)日：2020-06-23
申请号：US15694191
申请日：2017-09-01
Applicant: General Electric Company
Inventor： Jayaprakash Natarajan , Seth Reynolds Hoffman , Ronnie Ray Pentecost , Wei Zhao
Abstract: A fuel injector for a gas turbine combustor includes side wall fuel injection bodies extending between opposite end walls. Each side wall fuel injection body defines a fuel plenum and includes an outer surface defining fuel injection ports in communication with the fuel plenum. One or more fuel injection bodies extending between the end walls are positioned between the side wall fuel injection bodies. Each fuel injection body defines a fuel plenum and includes an outer surface defining fuel injection ports in fluid communication with the fuel plenum. A conduit fitting coupled to the frame is fluidly connected to the respective fuel plenums. The fuel injection ports fluidly communicate with air flow paths defined between the fuel injection bodies and the side wall fuel injection bodies. A combustor for a gas turbine includes a liner and an axial fuel staging system with the present fuel injector.
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公开(公告)号：US10513987B2
公开(公告)日：2019-12-24
申请号：US15395282
申请日：2016-12-30
Applicant: General Electric Company
Inventor： Michael John Hughes , Jayaprakash Natarajan
Abstract: A system for dissipating fuel egress includes a fuel injector and a fuel supply assembly. The fuel supply assembly has a fuel supply line that provides fuel and a purge air conduit arranged co-axially around the fuel supply line, thereby defining an annular channel around the fuel supply line. The fuel injector includes a perimeter body, a fuel injection port associated with the perimeter body, and an internal mixing chamber downstream of the fuel injection port in a direction of fuel flow. The fuel supply line provides fuel to the fuel injection port. The perimeter body of the fuel injector defines a fuel egress passage therethrough, which has an inlet in fluid communication with the annular channel and an outlet in fluid communication with the mixing chamber. A gas turbine combustor having an axial fuel staging (AFS) system with the present fuel egress dissipation system is also provided.
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Patent Agency Ranking
公开(公告)号：US12044180B2
公开(公告)日：2024-07-23
申请号：US17975110
申请日：2022-10-27
Applicant: General Electric Company
Inventor： Lucas John Stoia , Yimin Huang , Abdul Khan , Thomas Edward Johnson , Heath M. Ostebee , Jayaprakash Natarajan
Abstract: An igniter for a combustor of a turbomachine includes a fuel inlet in fluid communication with a mixing plenum. The mixing plenum is positioned upstream of a mixing channel. An air inlet is in fluid communication with the mixing plenum and an ignition source is in operative communication with the mixing channel. The igniter may include a mounting flange configured for coupling the igniter to the combustor. The ignition source may be positioned proximate to a downstream end of the mixing channel and upstream of the mounting flange. The mixing channel may define a venturi shape. The venturi shape includes a converging section between an upstream end of the mixing channel and a venturi throat.
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公开(公告)号：US20210301722A1
公开(公告)日：2021-09-30
申请号：US16833954
申请日：2020-03-30
Applicant: General Electric Company
Inventor： Willy Steve Ziminsky , Mark William Pinson , Jayaprakash Natarajan , Lucas John Stoia
Abstract: Combustors, gas turbines, and associated methods of operation are provided. A method for operating a combustor includes firing a bundled tube fuel nozzle assembly within a combustion liner of the combustor to generate combustion gases at a first temperature within a first combustion zone length. The method further includes firing a fuel injector downstream from the bundled tube fuel nozzle assembly within the combustion liner of the combustor to generate combustion gases at a second temperature within a second combustion zone length. The first combustion zone length is less than the second combustion zone length. The combustion gases travel through the first combustion zone length in a first time period and through the second combustion zone length in a second time period. The second time period is less than the first time period.
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公开(公告)号：US10584610B2
公开(公告)日：2020-03-10
申请号：US15292452
申请日：2016-10-13
Applicant: General Electric Company
Inventor： Seth Reynolds Hoffman , Lucas John Stoia , Sven Georg Bethke , Richard Martin DiCintio , Jeffrey Scott LeBegue , Jayaprakash Natarajan
Abstract: A combustion liner assembly includes a combustion liner having an upstream end portion and a downstream end portion and a resonator disposed proximate to the upstream end portion of the combustion liner. The resonator includes a plurality of circumferentially spaced inlet apertures disposed along a radially outer surface of the resonator, an air chamber defined within the resonator and a plurality of outlet apertures disposed along a radially inner surface of the resonator. The plurality of inlet apertures provide for fluid flow into the air chamber and the plurality of outlet apertures provide for fluid flow out of the air chamber and into a radial flow passage defined within the combustor.
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公开(公告)号：US20180187893A1
公开(公告)日：2018-07-05
申请号：US15395314
申请日：2016-12-30
Applicant: General Electric Company
Inventor： Richard Martin DiCintio , Seth Reynolds Hoffman , Ronnie Ray Pentecost , Jayaprakash Natarajan , Wei Zhao
CPC classification number: F23R3/346 , F23D14/64 , F23D2900/14642 , F23R3/002 , F23R3/10 , F23R2900/03341
Abstract: A fuel injector is provided for the radial introduction of a fuel/air mixture to a combustor. The fuel injector includes a frame having interior sides defining an opening for passage of a first fluid; at least one fuel injection body; and a conduit fitting. The at least one fuel injection body is coupled to the frame and positioned within the opening, thereby defining flow paths for the first fluid. The at least one fuel injection body defines a fuel plenum, and a set of fuel injection holes are defined through an outer surface of the at least one fuel injection body. The conduit fitting is coupled to the frame and conveys fuel from a fuel supply line to the fuel plenum. Fuel and the first fluid mix in the flow paths and are delivered through the outlet to the combustor.
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公开(公告)号：US20170227225A1
公开(公告)日：2017-08-10
申请号：US15019713
申请日：2016-02-09
Applicant: General Electric Company
Abstract: A fuel injector is provided. The fuel injector includes a manifold and a housing coupled to the manifold. The housing defines an interior chamber therein. The fuel injector also includes a nozzle positioned within the interior chamber. The nozzle includes an array of mixing tubes that each have a proximal end, a distal end, and a perforated body extending therebetween. The proximal ends are coupled in flow communication with the manifold such that the perforations of each body are in flow communication with the interior chamber to facilitate discharging a mixture of fuel and compressed gas from the distal ends.
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