A GAS TURBINE ENGINE AND NACELLE NOISE ATTENUATION STRUCTURE
    1.
    发明申请
    A GAS TURBINE ENGINE AND NACELLE NOISE ATTENUATION STRUCTURE 审中-公开
    燃气涡轮发动机与纳机噪声衰减结构

    公开(公告)号:WO2014028078A3

    公开(公告)日:2014-04-10

    申请号:PCT/US2013037686

    申请日:2013-04-23

    Abstract: A nacelle structure for a gas turbine engine assembly includes a fan case, and inlet, and a noise attenuation device. The fan case is configured to be disposed about a fan section of the gas turbine engine, which fan section has a diameter D. The inlet is attached to the fan case and extends axially forward of the fan case. A hilite of the inlet is spaced a distance L from a region in which the fan section is configured to be disposed. A ratio L/D is less than about 0.6. The noise attenuation structure covers a portion of an inner surface of the fan case and the inlet.

    Abstract translation: 用于燃气涡轮发动机组件的机舱结构包括风扇壳体和入口以及噪声衰减装置。 风扇外壳被配置为围绕燃气涡轮发动机的风扇部分设置,该风扇部分具有直径D.入口连接到风扇外壳并且在风扇外壳的轴向前方延伸。 入口的hilite与配置有风扇部分的区域间隔距离L. 比值L / D小于约0.6。 噪声衰减结构覆盖风扇外壳的内表面和入口的一部分。

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