Title:
SHIP PROPULSION UNIT AND SHIP WITH THE SAME
Document Type and Number:
Japanese Patent JP2018079742
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make the best use of the thrust generated by the thrust generation unit.SOLUTION: A ship 1 includes a hull 2 and a pair of electric propulsion units 4R, 4L. The electric propulsion units 4R, 4L comprise a thrust generation unit 40 including a duct and a propeller part. An electric motor is constituted by a stator part equipped in the duct and by a rotor part equipped in the propeller part. When the starting condition of an inverse propulsion mode is established, the value of the target steering angle is inverted 180 degrees and the direction of the thrust generation unit 40 is inverted 180 degrees. Moreover, the sign of the target torque value is inverted and the rotating direction of the electric motor is inverted. At the braking time, the thrust generating unit 40 of the electric propulsion units 4R, 4L is directed to the backward and the electric motor may rotate in the forward direction. At the time of the parallel translation, the thrust generating unit 40 of the electric propulsion units 4R, 4L is directed to the forward and backward, and the electric motor of both electric propulsion units 4R, 4L may be driven in the forward direction.SELECTED DRAWING: Figure 1
Inventors:
SUZUKI TAKAYOSHI
YAMAGUCHI KOHEI
YAMAGUCHI KOHEI
Application Number:
JP2016221860A
Publication Date:
May 24, 2018
Filing Date:
November 14, 2016
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
B63H5/125; B63H1/12; B63H5/08; B63H5/15; B63H20/00; B63H21/17
Attorney, Agent or Firm:
Patent Business Corporation Ai Patent Office