A propeller includes a plurality of blades extending outward in a radial direction of a rotational center axis with respect to the rotational center axis and including end portions on opposite sides of the rotational center axis. The blade has a maximum elevation angle, which is the maximum elevation angle of the blade, at a position in a range of 30% to 60% from the rotation center axis in a radius of a circle centered on the rotation center axis and passing through an end portion of the blade. The change in elevation angle in the longitudinal direction of the blades is within 10 degrees per 5% of the radius, and the change in cross-section maximum blade thickness, which is the maximum blade thickness in the cross sections of the blades orthogonal to the longitudinal direction, is within 20% of the maximum blade thickness in the blades per 5% of the radius. And the change in the chord length of the blade in the longitudinal direction is within 20% of the maximum value of the chord length of the blade for every 5% of the radius.

    一种螺旋桨包括多个桨叶,桨叶相对于旋转中心轴沿所述旋转中心轴的径向方向向外侧延伸,并且包括位于旋转中心轴的相对侧的端部。桨叶在以旋转中心轴为中心且经过该桨叶的端部的圆的半径中以旋转中心轴为起点的30%至60%范围的位置处具有作为该桨叶的最大仰角的最大仰角。桨叶的纵向方向上的仰角的变化对于每5%的半径在10度以内,作为与纵向方向正交的桨叶的横截面中的最大桨叶厚度的横截面最大桨叶厚度在纵向方向上的变化对于每5%的半径在桨叶中的最大桨叶厚度的20%以内,以及在纵向方向上的桨叶的弦长的变化对于每5%的半径在桨叶的弦长的最大值的20%以内。


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    Titel :

    Propeller, flying object and method for manufacturing propeller


    Weitere Titelangaben:

    螺旋桨、飞行物体和用于制造螺旋桨的方法


    Beteiligte:
    OKADA ATSUSHI (Autor:in)

    Erscheinungsdatum :

    2023-03-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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