Title:
SHIP PROPULSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/168549
Kind Code:
A1
Abstract:
This ship propulsion device is equipped with an energy-saving appendage 5 which is located forward of a propeller 1 and which has a curved surface having a radius R smaller than the radius r of the propeller 1. The pitch of the blades 3 of the propeller 1 has a pitch distribution having a local minimum point S where the pitch is smallest at a position radially inward of the radius R of the energy-saving appendage 5.
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Inventors:
HAMACHI SACHIKO (JP)
MASUDA SATOSHI (JP)
MASUDA SATOSHI (JP)
Application Number:
PCT/JP2016/060054
Publication Date:
October 05, 2017
Filing Date:
March 29, 2016
Export Citation:
Assignee:
JAPAN MARINE UNITED CORP (JP)
International Classes:
B63H5/16; B63H1/26
Foreign References:
| JPH10264890A | 1998-10-06 | |||
| JPH0317996U | 1991-02-21 | |||
| JPS57144188A | 1982-09-06 |
Attorney, Agent or Firm:
PATENT FIRM YAMADA PATENT OFFICE (JP)
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