SHIP PROPULSION DEVICE - JAPAN MARINE UNITED CORP

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)

Application Number:

PCT/JP2016/062615

Publication Date:

October 26, 2017

Filing Date:

April 21, 2016

Export Citation:

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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: