A vessel propulsion apparatus (100) includes a cylindrical duct (41) including a stator (47) and a propeller (42). The propeller (42) includes a rim (51) including a rotor (53) disposed at a position facing the stator (47) and defining an electric motor (50) in combination with the stator (47), and blades (52) on an inner side in a radial direction of the rim (51). A fluid bearing (20) is provided on the duct (41) and defines a gap (23) into which surrounding water is introduced between the fluid bearing (20) and the rim (51), and is water-lubricated with respect to the rim (51) due to water introduced into the gap (23) from the surroundings. The vessel propulsion apparatus (100) further includes a motor controller (86) that drives the electric motor (50) by rotation speed control in a rotation speed control region in which an output command is not more than a predetermined value, and drives the electric motor (50) by torque control in a torque control region in which an output command is more than the predetermined value.


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    Title :

    VESSEL PROPULSION APPARATUS, VESSEL INCLUDING THE SAME AND A METHOD FOR CONTROLLING A VESSEL PROPULSION APPARATUS


    Additional title:

    SCHIFFSANTRIEBSVORRICHTUNG, SCHIFF DAMIT UND VERFAHREN ZUR STEUERUNG EINER SCHIFFSANTRIEBSVORRICHTUNG
    APPAREIL DE PROPULSION DE NAVIRE, NAVIRE LE COMPRENANT ET PROCÉDÉ DE COMMANDE D'UN APPAREIL DE PROPULSION DE NAVIRE


    Contributors:

    Publication date :

    2018-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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