Combustor acoustic damping structure

    公开(公告)号:US10724739B2

    公开(公告)日:2020-07-28

    申请号:US15468172

    申请日:2017-03-24

    Abstract: The present disclosure is directed to a combustor assembly for a gas turbine engine. The combustor assembly includes an annular bulkhead adjacent to a diffuser cavity; a deflector downstream of the bulkhead and adjacent to a combustion chamber; a bulkhead support coupled to an upstream side of the deflector; a first walled enclosure coupled to the bulkhead support; and a second walled enclosure coupled to the first walled enclosure. The deflector and the bulkhead support together define a bulkhead conduit therethrough to the combustion chamber. The first walled enclosure defines a first cavity and a hot side orifice. The hot side orifice is adjacent to and in fluid communication with the bulkhead conduit. The second walled enclosure defines a second cavity and a second opening adjacent to a diffuser cavity.

    HIGH FREQUENCY ACOUSTIC DAMPER FOR COMBUSTOR LINERS

    公开(公告)号:US20170321895A1

    公开(公告)日:2017-11-09

    申请号:US15145175

    申请日:2016-05-03

    CPC classification number: F23M20/005 F05D2260/963 F23R3/002 F23R2900/00014

    Abstract: An acoustic damping device is provided that includes a resonating tube defining a resonating cavity with a predetermined characteristic length and a tube end defining a cavity opening, as well as a case configured to reversibly secure the tube end in fluidic communication with a fluid volume enclosed by a liner. The cavity opening is connected with the resonating cavity. The case includes a vented ferrule adpressed over a perforated region of the liner. The vented ferrule defines a ferrule opening that is aligned with the perforated region of the liner and the cavity opening to form the fluidic communication between the fluid volume and the resonating cavity.

    SEALED CONICAL-FLAT DOME FOR FLIGHT ENGINE COMBUSTORS
    35.
    发明申请
    SEALED CONICAL-FLAT DOME FOR FLIGHT ENGINE COMBUSTORS 审中-公开
    用于飞行发动机燃烧器的密封平底锅

    公开(公告)号:US20170009986A1

    公开(公告)日:2017-01-12

    申请号:US14794016

    申请日:2015-07-08

    Abstract: A combustor assembly for a gas turbine engine defining an axial direction is provided. The combustor assembly generally includes a liner, an annular dome, and a deflector plate. The liner at least partially defines a combustion chamber. The annular dome defines a first cavity and has a plurality of impingement holes, and the deflector plate defines a conical surface and a flat surface, wherein a plurality of cooling holes are defined through the deflector plate. The annular dome and the deflector plate are positioned together to define a second cavity that is in fluid communication with the first cavity through the plurality of impingement holes. In addition, the second cavity is in fluid communication with the combustion chamber through the plurality of cooling holes.

    Abstract translation: 提供了一种用于限定轴向方向的燃气涡轮发动机的燃烧器组件。 燃烧器组件通常包括衬套,环形圆顶和偏转板。 衬垫至少部分地限定燃烧室。 环形拱顶限定第一腔并且具有多个冲击孔,并且偏转板限定锥形表面和平坦表面,其中多个冷却孔限定穿过偏转板。 环形圆顶和偏转板被定位在一起以限定通过多个冲击孔与第一空腔流体连通的第二腔。 此外,第二空腔通过多个冷却孔与燃烧室流体连通。

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