The invention provides a propeller structure capable of delaying cavitation, and relates to the technical field of propellers, the propeller structure comprises a propeller blade, and a plurality of wedge blocks are arranged on the surface of the upper end of the propeller blade; the radial mounting range of the wedge-shaped blocks is as follows: 2-4 wedge-shaped blocks are arranged in the cavitation area of the propeller blade; the chordwise mounting range of the wedge-shaped block is 60%-80% of the thickness of the propeller blade from the guide edge to the mounting position; the mounting direction of the wedge-shaped block is as follows: the tip part is close to the guide edge of the propeller blade, the length edge is along the section of the propeller blade, the wedge-shaped block is vertically mounted on the surface of the propeller blade, the width of the wedge-shaped block is 20%-30% of the thickness of the propeller blade at the mounting position, the length of the wedge-shaped block is 60%-80% of the thickness of the propeller blade at the mounting position, and the thickness of the wedge-shaped block is 2%-3% of the thickness of the propeller blade at the mounting position. The method mainly aims at the shape, the installation number and the installation positions of the wedge-shaped blocks, and the effect of delaying cavitation is achieved under the condition that the performance of the propeller is affected as little as possible.

    本申请提供了一种延缓空化的螺旋桨结构,涉及螺旋桨技术领域,包括螺旋桨叶,螺旋桨叶的上端表面设置有多组楔形块;楔形块的径向安装范围为:螺旋桨叶发生空化的区域内,数量为2—4个;楔形块的弦向安装范围为:到导边距离安装位置处螺旋桨叶厚度的60%~80%;楔形块的安装方向为:尖端部靠近螺旋桨叶的导边,长度边沿着螺旋桨叶的剖面,垂直安装在螺旋桨叶的表面,楔形块的宽度设置为安装位置处螺旋桨叶厚度的20%~30%,长度设置为安装位置处螺旋桨叶厚度的60%~80%,厚度为安装位置处螺旋桨叶厚度的2%~3%。本发明主要在于楔形块的形状与安装数量及安装位置,在尽可能少影响螺旋桨性能的条件下,起到延缓空化的作用。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Propeller structure capable of delaying cavitation


    Weitere Titelangaben:

    一种延缓空化的螺旋桨结构


    Beteiligte:
    FANG MINGMING (Autor:in) / XUE ZHENYU (Autor:in) / LIU ZHENHUA (Autor:in) / ZHOU HAO (Autor:in) / WANG JIANGANG (Autor:in) / ZHANG YAN (Autor:in) / LIU XIAOMING (Autor:in) / LI TIAN (Autor:in)

    Erscheinungsdatum :

    10.01.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



    Propeller structure capable of reducing cavitation phenomenon

    ZHU QIUYANG / DUAN XUPENG / ZHAO TAO et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Propeller cavitation

    Eggert, E.F. | Engineering Index Backfile | 1933


    Propeller cavitation

    Eggert, E.F. | Engineering Index Backfile | 1933


    Propeller cavitation

    Eggert, E.F. | Engineering Index Backfile | 1933


    Propeller cavitation

    Amari, Y. | Engineering Index Backfile | 1932