Title:
SHIP PROPULSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/183150
Kind Code:
A1
Abstract:
A ship propulsion device, wherein an attachment 4 for reducing the hub vortex of a propeller 2 is installed at the elevation of the propeller 2 on the front edge of a rudder 3 disposed at the rear of the propeller 2. The distance L1 between the front edge of the rudder 3 and the blade center of the propeller 2 is 30-60% inclusive of the diameter D of the propeller 2. The distance L2 between the front end of the attachment 4 and the rear end of the propeller 2 is within the range of 50-300 mm.
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Inventors:
MASUDA SATOSHI (JP)
FUJISAWA TAKEHARU (JP)
YAMAUCHI YUTAKA (JP)
MIZUNO SHIGEYA (JP)
FUJISAWA TAKEHARU (JP)
YAMAUCHI YUTAKA (JP)
MIZUNO SHIGEYA (JP)
Application Number:
PCT/JP2016/062615
Publication Date:
October 26, 2017
Filing Date:
April 21, 2016
Export Citation:
Assignee:
JAPAN MARINE UNITED CORP (JP)
International Classes:
B63H25/38
Foreign References:
JPS61275096A | 1986-12-05 | |||
JP2008536761A | 2008-09-11 | |||
JP2005007922A | 2005-01-13 | |||
JP2015120487A | 2015-07-02 | |||
JP2013256215A | 2013-12-26 |
Other References:
See also references of EP 3446960A4
Attorney, Agent or Firm:
PATENT FIRM YAMADA PATENT OFFICE (JP)
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