Title:
OUTBOARD MOTOR
Document Type and Number:
Japanese Patent JP2022018646
Kind Code:
A
Abstract:
To improve support rigidity of a propeller as well as improving propulsion performance of an outboard motor.SOLUTION: An outboard motor includes a duct, a propeller, a central shaft, and a plurality of fins. The duct has a circular hole. The propeller is arranged in the hole. The propeller includes a boss and a plurality of blades extending radially from the boss. The central shaft rotatably supports the propeller. The plurality of fins are extended radially from the central shaft. The plurality of fins connect the central shaft and the duct. The fins have an airfoil shape.SELECTED DRAWING: Figure 6
Inventors:
TSUKADA JUNYA
YASUKAWA HIKARU
YASUKAWA HIKARU
Application Number:
JP2020121892A
Publication Date:
January 27, 2022
Filing Date:
July 16, 2020
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
B63H5/16; B63H20/00; B63H20/34
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation
Yamashita
Yamashita