本发明公开一种涵道尾桨桨叶,在与涵道尾桨桨叶转动轴线相垂直的平面内,涵道尾桨桨叶的投影轮廓具有圆弧段;涵道尾桨桨叶转动过程中,在与涵道尾桨桨叶转动轴线相垂直的平面内,涵道尾桨桨叶的投影与涵道尾桨的定子叶片的投影最大重合面积小于涵道尾桨的定子叶片的投影面积。本发明的涵道尾桨桨叶,改变现有技术中矩形平面的桨叶外形,构建弯曲外形的涵道尾桨桨叶,使得涵道尾桨桨叶在转动过程中,涵道尾桨桨叶的投影不会与涵道尾桨的定子叶片的投影完全重合,从而降低涵道尾桨桨叶旋转通过定子叶片上方时发生的遮挡干扰,降低噪声水平。本发明还提供一种包含上述涵道尾桨桨叶的尾桨同时,本发明还提供一种包含上述尾桨的飞行器。

    The invention discloses a ducted tail rotor blade which is characterized in that the projection contour of the ducted tail rotor blade is provided with an arc section in a plane vertical to the rotating axis of the ducted tail rotor blade; in the rotating process of the duct tail rotor blades, in the plane perpendicular to the rotating axis of the duct tail rotor blades, the maximum overlapping area of the projection of the duct tail rotor blades and the projection of the stator blades of the duct tail rotor is smaller than the projection area of the stator blades of the duct tail rotor. According to the ducted tail rotor blade, the shape of a rectangular planar blade in the prior art is changed, and the ducted tail rotor blade with the bent shape is constructed, so that in the rotating process of the ducted tail rotor blade, the projection of the ducted tail rotor blade does not completely coincide with the projection of a stator blade of a ducted tail rotor; therefore, shielding interference generated when the duct tail rotor blade rotates and passes through the upper portion of the stator blade is reduced, and the noise level is lowered. The invention further provides a tail rotor comprising the duct tail rotor blade, and meanwhile, the invention further provides an aircraft comprising the tail rotor.


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    Titel :

    一种飞行器和尾桨及涵道尾桨桨叶


    Erscheinungsdatum :

    2024-05-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge