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.
VESSEL PROPULSION APPARATUS, VESSEL INCLUDING THE SAME AND A METHOD FOR CONTROLLING A VESSEL PROPULSION APPARATUS
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
2018-05-16
Patent
Electronic Resource
English
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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