A hovercraft inner and outer annular channel type air propeller is an asymmetric air rudder, three rudder blades are arranged in parallel relative to the air propeller, the cross section of each rudder blade is in an aircraft wing shape, the middle rudder blade is a forward rudder blade consistent with the side floating force direction, and the rudder blades on the two sides are reverse rudder blades opposite to the side floating force direction. According to the asymmetric air rudder for the hovercraft inner and outer loop type air propellers, the rudder blade is essentially a vertical wing, the wing generates corresponding lift force when having a wing type positive angle of attack, the wing does not generate lift force or the generated lift force is extremely small when having a wing type negative angle of attack, and no obvious influence is generated on navigation; therefore, through the shapes and the arrangement directions of the three rudder blades, the side floating force generated by the air propeller can be counteracted when the hovercraft sails positively, so that the sailing stability of the hovercraft is effectively improved, and enough steering force can be provided during steering by utilizing the lift force difference of the rudder blades.

    气垫船内外环道式空气螺旋桨用非对称空气方向舵,三片舵叶相对空气螺旋桨并列设置,舵叶的横截面形状为飞机翼型,且中间的舵叶为与侧漂力方向一致的正向舵叶,两侧的舵叶为与侧漂力方向相反的反向舵叶。该种气垫船内外环道式空气螺旋桨用非对称空气方向舵,其舵叶的本质为竖直的机翼,机翼在具有翼型正迎角时将产生相应的升力,翼型负迎角时将不产生升力或产生的升力极小,不对航行产生显著影响;由此,通过三片舵叶的形状和设置方向,可以在气垫船正航时抵消空气螺旋桨产生的侧漂力,从而有效地提高气垫船航行的稳定性,并可以利用舵叶的升力差在转向时提供足够的转向力。


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    Title :

    Asymmetric air rudder for hovercraft inner and outer loop type air propellers


    Additional title:

    气垫船内外环道式空气螺旋桨用非对称空气方向舵


    Contributors:
    JIANG HUA (author) / ZHOU CHANGSHENG (author) / ZHOU DEWU (author) / HAN TIANYI (author)

    Publication date :

    2025-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60V Luftkissenfahrzeuge , AIR-CUSHION VEHICLES



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