Plug resistant effusion holes for gas turbine engine

    公开(公告)号:US11519604B2

    公开(公告)日:2022-12-06

    申请号:US17305202

    申请日:2021-07-01

    Abstract: A combustor for a gas turbine engine includes a liner having a first surface, a second surface opposite the first surface, and defining a plurality of effusion cooling holes. At least one of the effusion cooling holes includes an inlet section and a converging section downstream of the inlet section. The at least one of the effusion cooling holes includes a metering section downstream of the converging section. The at least one of the effusion cooling holes includes an outlet section downstream of the metering section. The outlet section is proximate to the second surface. The inlet section, the converging section, the metering section and the outlet section extend along a longitudinal axis, with the inlet section asymmetrical relative to the longitudinal axis and the metering section symmetrical relative to the longitudinal axis.

    Plug resistant effusion holes for gas turbine engine

    公开(公告)号:US11306659B2

    公开(公告)日:2022-04-19

    申请号:US16423579

    申请日:2019-05-28

    Abstract: An effusion cooling hole for a component associated with a gas turbine engine extends along a longitudinal axis. The effusion cooling hole includes an inlet section spaced apart from a first surface of the component. The inlet section includes a face orientated transverse to the first surface and defines an inlet through the face that has a first diameter. The effusion cooling hole includes an outlet at a second surface of the component and downstream from the inlet section. The effusion cooling hole includes a diverging section downstream from the inlet section and upstream from the outlet. The diverging section is defined substantially external to a thickness of the component, and the effusion cooling hole transitions from the first diameter to a second diameter at the diverging section. The effusion cooling hole includes an intermediate section that fluidly connects the diverging section to the outlet.

    Axially staged rich quench lean combustion system

    公开(公告)号:US10816211B2

    公开(公告)日:2020-10-27

    申请号:US15686533

    申请日:2017-08-25

    Abstract: A combustion system and a method of combustion for a gas turbine engine includes a combustor liner defining a combustion chamber. A plurality of fuel nozzle sets extend into, and supply fuel flow to, the combustion chamber. A pilot fuel nozzle injects a first fuel spray in a tangential direction relative to the combustion liner and toward the upstream end of the combustion chamber. A main fuel nozzle injects a second fuel spray toward the exit end of the combustion chamber. At ignition conditions, a majority of the fuel flow is injected through the pilot fuel nozzles, and at high power conditions a majority of the fuel flow is injected through the main fuel nozzles. At high power conditions, a fuel rich mixture is supplied to the combustion chamber, and a row of quench jets are configured to supply air to the combustion chamber, providing rich-quench-lean combustion.

    Gas turbine engines with plug resistant effusion cooling holes

    公开(公告)号:US10101030B2

    公开(公告)日:2018-10-16

    申请号:US14475106

    申请日:2014-09-02

    Abstract: A combustor for a turbine engine is provided. A first liner has a first surface and a second surface. A second liner forms a combustion chamber with the second side of the first liner, and the combustion chamber configured to receive an air-fuel mixture for combustion therein. The first liner defines a plurality of effusion cooling holes configured to form a film of cooling air on the second surface of the first liner. The plurality of effusion cooling holes includes a first effusion cooling hole extending from the first surface to the second surface and including an inlet portion extending from the first surface, a metering portion fluidly coupled to the inlet portion, and an outlet portion fluidly coupled to the metering portion and extending to the second surface. The inlet portion is larger than the metering portion.

    Reverse-flow annular combustor for reduced emissions
    15.
    发明授权
    Reverse-flow annular combustor for reduced emissions 有权
    逆流环形燃烧器,减少排放

    公开(公告)号:US09400110B2

    公开(公告)日:2016-07-26

    申请号:US13656219

    申请日:2012-10-19

    Abstract: A combustor for a gas turbine engine is provided. The combustor includes an annular inner liner; an annular outer liner circumscribing the annular inner liner; and a combustor dome having a first edge coupled to the annular inner liner and a second edge coupled to the annular outer liner, the combustor dome forming a combustion chamber with the annular inner liner and the annular outer liner. The combustion chamber accommodates fluid flow through the annular inner and annular outer liners. The combustion chamber converges in the direction of the air flow to reduce a diameter of the combustion chamber. The combustor dome is configured to bifurcate the air flow at the combustor dome into a first stream directed to the annular inner liner and a second stream directed to the annular outer liner.

    Abstract translation: 提供了一种用于燃气涡轮发动机的燃烧器。 燃烧器包括环形内衬; 围绕所述环形内衬的环形外衬套; 以及燃烧器穹顶,其具有联接到所述环形内衬的第一边缘和连接到所述环形外衬垫的第二边缘,所述燃烧器圆顶形成具有所述环形内衬和所述环形外衬套的燃烧室。 燃烧室容纳通过环形内环和外环的外衬的流体流。 燃烧室在空气流的方向上会聚,以减小燃烧室的直径。 燃烧器穹顶构造成将燃烧器穹顶处的空气流分叉成指向环形内衬的第一流和指向环形外衬套的第二流。

    GASEOUS FUEL NOZZLE FOR USE IN GAS TURBINE ENGINES

    公开(公告)号:US20240110520A1

    公开(公告)日:2024-04-04

    申请号:US18054177

    申请日:2022-11-10

    CPC classification number: F02C7/232 F23R3/28 F05D2220/323 F05D2240/35

    Abstract: A gaseous fuel nozzle includes a main body, a plurality of inner air injection passages having inlet and outlet ports, a plurality of outer air injection passages having inlet and outlet ports, and a plurality of gaseous fuel injection passages having inlet and outlet ports. At least the gaseous fuel injection outlet ports are disposed concentrically about an axis of symmetry and between the plurality of inner air injection nozzle outlet ports and the plurality of outer air injection nozzle outlet ports.

    AXIALLY STAGED RICH QUENCH LEAN COMBUSTION SYSTEM

    公开(公告)号:US20190063754A1

    公开(公告)日:2019-02-28

    申请号:US15686533

    申请日:2017-08-25

    Abstract: A combustion system and a method of combustion for a gas turbine engine includes a combustor liner defining a combustion chamber. A plurality of fuel nozzle sets extend into, and supply fuel flow to, the combustion chamber. A pilot fuel nozzle injects a first fuel spray in a tangential direction relative to the combustion liner and toward the upstream end of the combustion chamber. A main fuel nozzle injects a second fuel spray toward the exit end of the combustion chamber. At ignition conditions, a majority of the fuel flow is injected through the pilot fuel nozzles, and at high power conditions a majority of the fuel flow is injected through the main fuel nozzles. At high power conditions, a fuel rich mixture is supplied to the combustion chamber, and a row of quench jets are configured to supply air to the combustion chamber, providing rich-quench-lean combustion.

    REVERSE-FLOW ANNULAR COMBUSTOR FOR REDUCED EMISSIONS
    18.
    发明申请
    REVERSE-FLOW ANNULAR COMBUSTOR FOR REDUCED EMISSIONS 有权
    用于减少排放的反向流动环形燃烧器

    公开(公告)号:US20140109581A1

    公开(公告)日:2014-04-24

    申请号:US13656219

    申请日:2012-10-19

    Abstract: A combustor for a gas turbine engine is provided. The combustor includes an annular inner liner; an annular outer liner circumscribing the annular inner liner; and a combustor dome having a first edge coupled to the annular inner liner and a second edge coupled to the annular outer liner, the combustor dome forming a combustion chamber with the annular inner liner and the annular outer liner. The combustion chamber accommodates fluid flow through the annular inner and annular outer liners. The combustion chamber converges in the direction of the air flow to reduce a diameter of the combustion chamber. The combustor dome is configured to bifurcate the air flow at the combustor dome into a first stream directed to the annular inner liner and a second stream directed to the annular outer liner.

    Abstract translation: 提供了一种用于燃气涡轮发动机的燃烧器。 燃烧器包括环形内衬; 围绕所述环形内衬的环形外衬套; 以及燃烧器穹顶,其具有联接到所述环形内衬的第一边缘和联接到所述环形外衬垫的第二边缘,所述燃烧器圆顶形成具有所述环形内衬和所述环形外衬套的燃烧室。 燃烧室容纳通过环形内环和外环的外衬的流体流。 燃烧室在空气流的方向上会聚,以减小燃烧室的直径。 燃烧器穹顶构造成将燃烧器穹顶处的空气流分叉成指向环形内衬的第一流和指向环形外衬套的第二流。

    Coating occlusion resistant effusion cooling holes for gas turbine engine

    公开(公告)号:US11674686B2

    公开(公告)日:2023-06-13

    申请号:US17317589

    申请日:2021-05-11

    CPC classification number: F23R3/002 F02C7/18 F23R2900/03041 F23R2900/03042

    Abstract: A coating occlusion resistant effusion cooling hole to form a film of a cooling fluid on a surface of a wall. The cooling hole extends along a longitudinal axis. The cooling hole includes an inlet section defined so as to be spaced apart from the surface. The inlet section is to receive the cooling fluid. The cooling hole includes a metering section fluidly coupled downstream of the inlet section. The cooling hole includes an outlet section fluidly coupled downstream of the metering section. The outlet section includes an overhang portion, a recessed portion, a first sidewall and a second sidewall. The first sidewall and the second sidewall interconnect the overhang portion with the recessed portion along a portion of the outlet section, and the first sidewall and the second sidewall converge and diverge in a plane transverse to the longitudinal axis.

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