The invention provides an inner and outer guide pipe type air propeller for a light hovercraft. The inner and outer guide pipe type air propeller comprises a propeller hub, an outer guide pipe, an inner guide pipe, rectifying blades, guide blades, a pipe beam and a rear edge baffle. Propeller blades are fixed on the propeller hub; the rectification blades are coaxially fixed to rear portions of the propeller blades; the outer guide pipe is arranged on an outer circular surface of the propeller blades; the outer guide pipe is connected to the outer side of the inner guide pipe in a sleeving manner; and a gap is formed between the outer guide pipe and the inner guide pipe, the outer guide pipe and the inner guide pipe are fixed through the pipe beam, the guide blades are arranged at an upperleft end or an upper right end of the gap between the inner guide pipe and the outer guide pipe, a rear edge of the gap between the outer guide pipe and the inner guide pipe is blocked by the rear edge baffle, and a rectangular hole is formed in the bottom of the outer guide pipe. By arranging the inner guide pipe, the outer guide pipe, the guide blades and the rear edge baffle, a propelling pullforce is generated, high hovercraft lifting pressure is provided, hovercraft drainage can be compensated fast, and a flying height of the hovercraft is increased.

    本发明提供了一种用于轻型气垫船的内外导管式空气螺旋桨,包括桨毂、外导管、内导管、整流叶片、导流叶片、管梁和后缘挡板;所述桨毂固定有螺旋桨叶片,所述螺旋桨叶片的后部同轴固定有所述整流叶片,所述螺旋桨叶片外圆面设有所述外导管,所述外导管套接在所述内导管外侧,所述外导管和所述内导管之间设有间隙,并通过所述管梁固定,所述内导管和所述外导管之的间隙左上端或右上端设有所述导流叶片,所述外导管和所述内导管之间的间隙后缘用所述后缘挡板封堵,所述外导管底部开设有矩形孔洞。本发明通过设置内外导管、导流叶片和后缘挡板,产生推进拉力,提供较高的垫升压力,可较快的补偿气垫船泄流,提高气垫船的飞高。


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    Title :

    Inner and outer guide pipe type air propeller for light hovercraft


    Additional title:

    一种用于轻型气垫船的内外导管式空气螺旋桨


    Contributors:
    HAN TIANYI (author)

    Publication date :

    2020-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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