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    Aluminum Fan Blades with Root Wear Mitigation
    1.
    发明申请
    Aluminum Fan Blades with Root Wear Mitigation 审中-公开
    具有根部磨损减轻的铝制风扇叶片

    公开(公告)号：US20160003067A1

    公开(公告)日：2016-01-07

    申请号：US14769006

    申请日：2013-12-13

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Curtis H. Riewe ,  Melvin Freling ,  Randy P. Salva

    IPC: F01D5/28 ,  F01D5/02 ,  F01D25/18 ,  F01D5/30

    Abstract: A fan blade assembly with wear mitigation characteristics is disclosed. In a titanium hub, dovetail shaped slots are used for accommodating dovetail shaped roots of fan blades. At least the inwardly facing walls of the dovetail shaped slots are coated with a dry film lubricant. The inwardly directed pressure faces of the dovetail shaped root of the fan blades are covered with polymeric wear mitigation pads. The combination of wear mitigation pads on the pressure faces of the root of the fan blade in combination with a dry film lubricant coating on the inwardly directed walls of the dovetail shaped slots in the hub provide excellent wear mitigation characteristics and prolong the life of the fan blades.

    Abstract translation: 公开了一种具有磨损减轻特性的风扇叶片组件。 在钛合金轮毂中，燕尾形槽用于容纳风扇叶片的燕尾形根。 燕尾形槽的至少面向内壁的涂覆有干膜润滑剂。 风扇叶片的燕尾形根部向内的压力面被聚合物耐磨缓冲垫覆盖。 风扇叶片根部的压力面上的磨损减轻垫与轮毂上燕尾形槽的向内指向的干膜润滑剂涂层的组合提供了优异的减轻磨损特性并延长了风扇的使用寿命 刀片。

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