A boat propeller includes a gear box, an impeller, a stream-guiding ring, and a stream-shaping nozzle. The gear box has a casing and a transmission shaft partially received in the casing. The impeller has an impeller shaft and vanes. The impeller shaft has a hollow columnar outer shaft housing and a hollow columnar inner shaft housing. The inner and outer shaft housings are connected using a plurality of rib portions. The inner shaft housing is further connected to the transmission shaft of the gear box. The vanes are integrated formed on an outer peripheral surface of the outer shaft. The stream-guiding ring is assembled to the casing of the gear box to house the impeller. The stream-shaping nozzle is connected to a rear end of the stream-guiding ring for providing stream-shaping effects. Thereby, the boat propeller has its water inlet diameter maximized, which helps to improve propulsive efficiency.


    Access

    Download


    Export, share and cite



    Title :

    BOAT PROPELLER


    Contributors:

    Publication date :

    2020-10-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



    Boat Propeller

    LIN YEUN-JUNN | European Patent Office | 2020

    Free access

    Boat Propeller

    LIN YEUN-JUNN | European Patent Office | 2020

    Free access

    Boat Propeller

    LIN YEUN-JUNN | European Patent Office | 2020

    Free access

    BOAT PROPELLER

    LIN YEUN-JUNN | European Patent Office | 2020

    Free access

    BOAT PROPELLER

    LIN YEUN-JUNN | European Patent Office | 2020

    Free access