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公开(公告)号：US11713881B2
公开(公告)日：2023-08-01
申请号：US16737040
申请日：2020-01-08
Applicant: General Electric Company
Inventor： Ranjeet Kumar Mishra , Jayanth Sekar , Pradeep Naik , Gregory A. Boardman , Randall C. Boehm
Abstract: A premixer for a combustor includes: a centerbody having a hollow interior cavity; a swirler assembly radially outward of the centerbody; a peripheral wall disposed radially outward of the centerbody and the swirler assembly such that a mixing duct is defined between the peripheral wall and the centerbody, downstream from the swirler assembly; an annular splitter radially inward of the swirler assembly and radially outward of the centerbody such that a radial gap is defined between the splitter and an outer surface of the centerbody, wherein the splitter includes a trailing edge which extends axially aft of the swirler assembly; a fuel gallery disposed inside the interior cavity of the centerbody; and at least one fuel injector extending outward from the fuel gallery and passing through an injector port communicating with the outer surface of the splitter.
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公开(公告)号：US20220412560A1
公开(公告)日：2022-12-29
申请号：US17355689
申请日：2021-06-23
Applicant: General Electric Company
Inventor： Ranganatha Narasimha Chiranthan , Rimple Rangrej , Saket Singh , Pradeep Naik , Gregory A. Boardman
IPC: F23R3/06
Abstract: A combustor for a gas turbine engine has a combustor liner that has a cold surface side and a hot surface side, the liner defining an upstream end and a downstream end, and a dilution opening through the combustor liner. The dilution opening includes a main dilution hole portion having an upstream edge and a downstream edge, a notched portion disposed at the upstream edge and extending upstream from the upstream edge, the notched portion being in fluid communication with the main dilution hole portion, and a slotted portion disposed at the downstream edge and extending downstream of the downstream edge, the slotted portion being in fluid communication with the main dilution hole portion.
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公开(公告)号：US11454396B1
公开(公告)日：2022-09-27
申请号：US17340614
申请日：2021-06-07
Applicant: General Electric Company
Inventor： Gregory A. Boardman , Vishal Sanjay Kediya , Pradeep Naik , Jeffrey M. Martini
Abstract: 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.
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4.发明授权公开(公告)号：US12111057B2
公开(公告)日：2024-10-08
申请号：US18320682
申请日：2023-05-19
Applicant: General Electric Company
Inventor： Pradeep Naik , Manampathy G. Giridharan , Vishal Sanjay Kediya , Gregory A. Boardman
CPC classification number: F23R3/286 , F23R3/12 , F23R3/343 , F02C3/20 , F02C7/222 , F02C7/26 , F23R3/36
Abstract: 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.
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公开(公告)号：US20230341127A1
公开(公告)日：2023-10-26
申请号：US18342960
申请日：2023-06-28
Applicant: General Electric Company
Inventor： Ranjeet Kumar Mishra , Jayanth Sekar , Pradeep Naik , Gregory A. Boardman , Randall C. Boehm
Abstract: A premixer for a combustor includes: a centerbody having a hollow interior cavity; a swirler assembly radially outward of the centerbody; a peripheral wall disposed radially outward of the centerbody and the swirler assembly such that a mixing duct is defined between the peripheral wall and the centerbody, downstream from the swirler assembly; an annular splitter radially inward of the swirler assembly and radially outward of the centerbody such that a radial gap is defined between the splitter and an outer surface of the centerbody, wherein the splitter includes a trailing edge which extends axially aft of the swirler assembly; a fuel gallery disposed inside the interior cavity of the centerbody; and at least one fuel injector extending outward from the fuel gallery and passing through an injector port communicating with the outer surface of the splitter.
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Patent Agency Ranking
公开(公告)号：US20220290862A1
公开(公告)日：2022-09-15
申请号：US17199244
申请日：2021-03-11
Applicant: General Electric Company
Inventor： Vishal Sanjay Kediya , Pradeep Naik , Gregory A. Boardman , Manampathy G. Giridharan
Abstract: A mixer for providing a fuel-air mixer to a combustor of an engine. The mixer may include a fuel flow and an air flow entering an interior passage of the mixer. The air flow may be comprised of three separate air flows. The first air flow may be parallel to a central axis of the mixer for pulling the fuel into the interior passage. The second air flow may be inclined with respect to the central axis of the mixer and the third air flow may be tangential to the mixer body. The second air flow and the third air flow may push the fuel flow toward the interior passage and away from the boundary layer flow.
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公开(公告)号：US20230235884A1
公开(公告)日：2023-07-27
申请号：US17685883
申请日：2022-03-03
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Pradeep Naik , Manampathy G. Giridharan , Michael T. Bucaro , Ajoy Patra , Perumallu Vukanti , R Narasimha Chiranthan , Gregory A. Boardman
CPC classification number: F23R3/002 , F02C3/04 , F05D2240/35
Abstract: A turbine engine can include a compressor section, a combustion section, and a turbine section in serial flow arrangement. The combustion section can have a combustor with a combustor liner at least partially defining a combustion chamber, as well as a fuel-air mixer including at least one set of mixing tubes.
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8.发明授权公开(公告)号：US11692709B2
公开(公告)日：2023-07-04
申请号：US17199257
申请日：2021-03-11
Applicant: General Electric Company
Inventor： Pradeep Naik , Manampathy G. Giridharan , Vishal Sanjay Kediya , Gregory A. Boardman
Abstract: 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.
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公开(公告)号：US20220357038A1
公开(公告)日：2022-11-10
申请号：US17315016
申请日：2021-05-07
Applicant: General Electric Company
Inventor： Gregory A. Boardman , Pradeep Naik , Bassam Sabry Mohammad Abdelnabi , Manampathy G. Giridharan , Vishal Sanjay Kediya , Narasimhan S. Sahana
Abstract: A pilot pre-mixer for a gas turbine engine has a pilot body that includes an internal mixing chamber, a first end on an upstream side of the internal mixing chamber, a second end on a downstream side of the internal mixing chamber, a fuel injector at the first end and communicable with the internal mixing chamber, a plurality of first oxidizer inlet ports arranged to provide an oxidizer agent from outside of the pilot body to the internal mixing chamber, and a plurality of pilot outlet ports at the second end and communicable with the internal mixing chamber, each of the plurality of pilot outlet ports having an outlet on the second end for dispensing a pilot fluid mixture into a combustion zone of a combustor.
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公开(公告)号：US11828465B2
公开(公告)日：2023-11-28
申请号：US17685883
申请日：2022-03-03
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Pradeep Naik , Manampathy G. Giridharan , Michael T. Bucaro , Ajoy Patra , Perumallu Vukanti , R Narasimha Chiranthan , Gregory A. Boardman
CPC classification number: F23R3/002 , F02C3/04 , F23R3/286 , F05D2240/35
Abstract: A turbine engine can include a compressor section, a combustion section, and a turbine section in serial flow arrangement. The combustion section can have a combustor with a combustor liner at least partially defining a combustion chamber, as well as a fuel-air mixer including at least one set of mixing tubes.
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