Electrostatic Discharge Prevention for a Fan Blade
    34.
    发明申请
    Electrostatic Discharge Prevention for a Fan Blade 有权
    风扇叶片的静电放电防护

    公开(公告)号:US20160312793A1

    公开(公告)日:2016-10-27

    申请号:US14695178

    申请日:2015-04-24

    Abstract: A fan blade capable of dissipating a buildup of electrostatic charge configured for operation within the fan assembly of a gas turbine engine. The fan blade has a fan blade body covered in a static dissipative coating. A conductive ground tab is attached to the front face of an airfoil root of the fan blade. Connected to the ground tab, a conductive flow path travels up the neck portion of the airfoil and along a lower portion of the fan blade. As static charge builds up on the fan blade, the electrostatic charge migrates down the fan blade and into the conductive flow path. Traveling along the conductive flow path the buildup of electrostatic charge accumulates on the conductive ground tab and exits the fan blade through contact with a disc rotor covering touching the conductive ground tab.

    Abstract translation: 一种风扇叶片,其能够消散构成用于在燃气涡轮发动机的风扇组件内操作的静电电荷的累积。 风扇叶片具有覆盖在静电耗散涂层中的风扇叶片体。 导电接地片附接到风扇叶片的翼型根部的前表面。 连接到接地片,导电流路沿着翼型件的颈部部分并沿着风扇叶片的下部部分向上行进。 随着静电荷积聚在风扇叶片上,静电荷沿风扇叶片向下移动并进入导电流路。 沿着导电流路行进,静电电荷的积累积聚在导电接地片上,并与覆盖接触导电接地片的盘式转子接触而离开风扇叶片。

    Leading Edge Sheath Manufacturing Method
    38.
    发明申请
    Leading Edge Sheath Manufacturing Method 审中-公开
    前沿护套制造方法

    公开(公告)号:US20160001407A1

    公开(公告)日:2016-01-07

    申请号:US14768633

    申请日:2013-12-16

    Abstract: A method for manufacturing a protective sheath for a fan blade leading edge is described. The method may comprise generating a preform plate from a stock plate wherein the preform plate has a flattened surface and an inclined surface having a spike flanked by a first side and a second side. The method may further comprise bending the first side and the second side away from the spike to generate a sheath intermediate followed by generating the protective sheath from the sheath intermediate by shaping an outer surface and an inner surface of the sheath intermediate to match the contour of the fan blade leading edge.

    Abstract translation: 描述了用于制造用于风扇叶片前缘的保护套的方法。 该方法可以包括从坯料板产生预成型板,其中预成型板具有扁平表面和具有侧面为第一侧和第二侧的尖端的倾斜表面。 该方法还可以包括将第一侧和第二侧弯曲远离尖峰以产生鞘中间体,随后通过使护套中间体的外表面和内表面成形来匹配护套中间体的保护鞘,以匹配护套中间体的轮廓 风扇叶片前缘。

    ELECTROFORMED SHEATH
    39.
    发明申请
    ELECTROFORMED SHEATH 审中-公开
    电动沙子

    公开(公告)号:US20150184306A1

    公开(公告)日:2015-07-02

    申请号:US14644954

    申请日:2015-03-11

    Abstract: An electroformed sheath for protecting an airfoil includes a sheath body and a mandrel insert is provided. The sheath body includes a leading edge. The sheath body includes a pressure side wall and an opposed suction side wall, which side walls meet at the leading edge and extend away from the leading edge to define a cavity between the side walls. The sheath body includes a head section between the leading edge and the cavity. The mandrel insert is positioned between the pressure side and suction side walls, and includes a generally wedge-shaped geometry. A method for protecting an airfoil includes: 1) securing a mandrel insert to a mandrel; 2) electroplating a sheath body onto the mandrel and the mandrel insert; 3) removing the mandrel from the sheath body so that a sheath cavity is defined within the sheath body; and 4) securing the airfoil within the sheath cavity.

    Abstract translation: 用于保护翼型的电铸护套包括护套主体和心轴插入件。 护套主体包括前缘。 护套主体包括压力侧壁和相对的吸力侧壁,侧壁在前缘相交并且远离前缘延伸以在侧壁之间限定空腔。 护套主体包括在前缘和腔之间的头部。 心轴插入件位于压力侧和吸力侧壁之间,并且包括大致楔形的几何形状。 一种用于保护翼型件的方法包括:1)将心轴插入件固定到心轴上; 2)将护套主体电镀到心轴和心轴插入件上; 3)从护套主体中取出心轴,使得护套空腔限定在护套主体内; 和4)将翼型件固定在护套腔内。

    INTEGRAL FAN BLADE WEAR PAD AND PLATFORM SEAL
    40.
    发明申请
    INTEGRAL FAN BLADE WEAR PAD AND PLATFORM SEAL 有权
    整体风扇叶片磨损垫和平台密封

    公开(公告)号:US20140286781A1

    公开(公告)日:2014-09-25

    申请号:US13739218

    申请日:2013-01-11

    Abstract: A fan section for a gas turbine engine includes a fan hub having a slot. A platform is supported by the fan hub. A fan blade has a root that is received in the slot. A wear pad is provided between the fan hub and the root and includes a flap integral with the wear pad to provide a seal relative to the platform. A fan blade for a gas turbine engine includes an airfoil extending from a root. A wear pad is secured to the root and has a free end providing a flap canted toward the root.

    Abstract translation: 用于燃气涡轮发动机的风扇部分包括具有槽的风扇毂。 风扇集线器支持平台。 风扇叶片具有接收在槽中的根部。 在风扇轮毂和根部之间提供耐磨垫,并且包括与耐磨垫一体的翼片,以提供相对于平台的密封。 用于燃气涡轮发动机的风扇叶片包括从根部延伸的翼型件。 磨损垫固定到根部,并具有自由端,提供朝向根部倾斜的翼片。

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