The invention provides a polygonal propeller helicopter. A center propeller is arranged above the gravity center of the top of a helicopter body, the rotating center of the center propeller serves asthe center of a horizontal polygon, and the distances from the vertex angles of the horizontal polygon to the center of the horizontal polygon are equal. Projections of the center of the horizontal polygon, the rotating center of the center propeller and the gravity center of the polygon propeller helicopter on the horizontal plane are overlapped, each vertex angle of the horizontal polygon is provided with the same fixed-pitch propeller, the center propeller is a fixed-pitch propeller or a variable-pitch propeller, and one engine drives the fixed-pitch propeller on one vertex angle. The engines are the same, the other different engine drives the central propeller, the power of the engine driving the central propeller is larger than or equal to the sum of the power of the engine driving the fixed-pitch propeller on the vertex angle of the horizontal polygon, and the undercarriage and the polygonal propeller helicopter are arranged below the helicopter body and close to the gravity center. The polygonal propeller helicopter has advantages of simple structure and high loading weight. The polygonal propeller helicopter is suitable for long-time flight.

    一种多边形螺旋桨直升机,机身顶部重心的上边设置中心螺旋桨,以中心螺旋桨的旋转中心为水平多边形的中心,水平多边形的顶角到水平多边形的中心的距离相等,该水平多边形的中心、中心螺旋桨的旋转中心和多边形螺旋桨直升机的重心在水平面的投影重叠,水平多边形的每个顶角都设置一个相同的定距螺旋桨,中心螺旋桨是定距螺旋桨或变距螺旋桨,一个发动机驱动一个顶角上的定距螺旋桨,这些发动机是相同的,另一个不同的发动机驱动中心螺旋桨,驱动中心螺旋桨的发动机的功率大于或等于驱动水平多边形顶角上的定距螺旋桨的发动机的功率总和,机身下靠近重心附近设置起落架,多边形螺旋桨直升机,具有结构简单,载重量大的优点,适合长时间飞行。


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    Title :

    Polygonal propeller helicopter


    Additional title:

    多边形螺旋桨直升机


    Contributors:
    JIANG FUYU (author)

    Publication date :

    2021-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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