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    Electric air-driven helicopter
    91.
    发明授权
    Electric air-driven helicopter 失效
    电动直升机

    公开(公告)号：US4702437A

    公开(公告)日：1987-10-27

    申请号：US699460

    申请日：1985-02-07

    申请人： Hoyt A. Stearns, Jr.

    发明人： Hoyt A. Stearns, Jr.

    IPC分类号： B64C27/16 ,  B64C27/52

    CPC分类号： B64C27/52 ,  B64C27/16

    摘要： A helicopter has a low profile electric motor mounted in each of the rotor blades to drive a cross-flow fan which draws air in through a slot at the leading edge of the blade and forces it out through an opposing slot adjacent the trailing edge of the blade to provide the thrust for rotating the rotor blade. An engine is located in the fuselage of the helicopter for driving an electric generator to produce the electricity supplied to the motors mounted in the blades. In addition, yaw control is achieved without the necessity of tail structure or a tail rotor using a small electric motor driving or absorbing power from the main rotor shaft. Both the yaw control motor and the main rotor shaft tilt together as a rigid unit. Pitch and roll control is achieved without the necessity of aerodynamic surfaces by movement of the main rotor support mast about a gimbal bearing support located above the center of gravity of the helicopter.

    摘要翻译： 直升机具有安装在每个转子叶片中的低轮廓电动机，以驱动横流风扇，该风扇通过叶片前缘处的狭槽吸入空气，并将其通过邻近叶片的后缘的相对槽 以提供用于旋转转子叶片的推力。 发动机位于直升机的机身中，用于驱动发电机以产生供应到安装在叶片中的电动机的电力。 此外，通过使用来自主转子轴的小电动机驱动或吸收动力，实现了不需要尾部结构或尾部转子的偏航控制。 偏航控制电机和主转子轴都作为刚性单元一起倾斜。 通过主转子支撑桅杆围绕位于直升机重心上方的万向节支承支架的运动，实现了空转动力表面的间距和侧倾控制。