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11.发明公开公开(公告)号：US20230288069A1
公开(公告)日：2023-09-14
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
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：US11175046B2
公开(公告)日：2021-11-16
申请号：US16407990
申请日：2019-05-09
Applicant: General Electric Company
Inventor： David A. Lind , Ajoy Patra , Ting-Yu Tu , Pradeep Naik , Gregory A. Boardman
Abstract: A premixer assembly for a combustor includes: at least one ring of premixers, each premixer having a central axis, an annular peripheral wall surrounding a centerbody, and at least one swirler disposed between the centerbody and the peripheral wall, wherein the peripheral wall defines an inlet area of the premixer; and a lip extending forward along the central axis from the peripheral wall, the lip extending at an oblique angle to the axis of symmetry.
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公开(公告)号：US20250123001A1
公开(公告)日：2025-04-17
申请号：US18967923
申请日：2024-12-04
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：US12163664B2
公开(公告)日：2024-12-10
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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公开(公告)号：US11971172B2
公开(公告)日：2024-04-30
申请号：US17509470
申请日：2021-10-25
Applicant: General Electric Company
Inventor： David A. Lind , Ajoy Patra , Ting-Yu Tu , Pradeep Naik , Gregory A. Boardman
Abstract: A premixer assembly for a combustor includes: at least one ring of premixers, each premixer having a central axis, an annular peripheral wall surrounding a centerbody, and at least one swirler disposed between the centerbody and the peripheral wall, wherein the peripheral wall defines an inlet area of the premixer; and a lip extending forward along the central axis from the peripheral wall, the lip extending at an oblique angle to the axis of symmetry.
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Patent Agency Ranking
公开(公告)号：US11965653B2
公开(公告)日：2024-04-23
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
CPC classification number: F23R3/06 , F23R2900/03045
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：US20230003385A1
公开(公告)日：2023-01-05
申请号：US17367036
申请日：2021-07-02
Applicant: General Electric Company
Inventor： Pradeep Naik , Gregory A. Boardman , Vishal Sanjay Kediya
Abstract: A premixer array for a gas turbine engine includes a plurality of swirled premixer tubes and a plurality of non-swirled premixer tubes. The premixer array further includes a pilot tube for providing a pilot product. The plurality of swirled premixer tubes may guide and spread out the pilot product in a radial direction, in a circumferential direction, or both in a radial direction and a circumferential direction. The plurality of swirled premixer tubes may include clockwise swirled and counterclockwise swirled premixers. Also, included is a method of controlling the flow of pilot products.
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公开(公告)号：US11506388B1
公开(公告)日：2022-11-22
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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19.发明申请公开(公告)号：US20220290863A1
公开(公告)日：2022-09-15
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：US20210207808A1
公开(公告)日：2021-07-08
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
IPC: F23R3/16
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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