The reduction in maneuverability of a hull caused by a sink vortex generated in the vicinity of a duct is suppressed. A boat propulsor includes a duct, a propeller disposed in the duct and rotatable around a rotation axis along the axial direction of the duct, and a rotation mechanism to rotate the propeller. The upper portion of the duct is provided with a plate extending from the duct in the axial direction and having a plurality of holes formed therein. In this boat propulsor, the plate is provided to extend from the upper portion of the duct, and the plate is provided with a plurality of holes formed therein. Multiple water streams coming around along the duct are attenuated as they pass through the holes in the plate.


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    Title :

    PLATE, BOAT PROPULSOR WITH A PLATE AND BOAT WITH BOAT PROPULSOR


    Additional title:

    PLATTE, BOOTSANTRIEB MIT EINER PLATTE UND BOOT MIT BOOTSANTRIEB
    PLAQUE, PROPULSEUR DE BATEAU AVEC PLAQUE ET BATEAU AVEC PROPULSEUR DE BATEAU


    Contributors:

    Publication date :

    2024-08-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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