Title:
PROPULSION DEVICE FOR MULTI-SHAFT SHIP
Document Type and Number:
WIPO Patent Application WO/2017/187597
Kind Code:
A1
Abstract:
An appendage 8 for reducing hub vortex is disposed, via a support body 7 extending from a hull 2, at the rear of a propeller (wing propeller) 4 which has no rudder disposed to the rearward thereof. The appendage 8 has a circular cross-section in a direction orthogonal to a center axis extending in the hull direction, and a rear section thereof is formed in a spindle shape, the diameter of which decreases toward the rear end thereof. The appendage 8 is configured to have a maximum diameter that is equal to 10-40% of the diameter of the propeller (wing propeller) 4, and a hull-direction length that is equal to 40-70% of the diameter of the propeller (wing propeller) 4.
Inventors:
MASUDA SATOSHI (JP)
FUJISAWA TAKEHARU (JP)
YAMAUCHI YUTAKA (JP)
FUJISAWA TAKEHARU (JP)
YAMAUCHI YUTAKA (JP)
Application Number:
PCT/JP2016/063353
Publication Date:
November 02, 2017
Filing Date:
April 28, 2016
Export Citation:
Assignee:
JAPAN MARINE UNITED CORP (JP)
International Classes:
B63H5/07; B63H1/28; B63H5/08
Foreign References:
| JP2013132937A | 2013-07-08 |
Other References:
See also references of EP 3450299A4
Attorney, Agent or Firm:
PATENT FIRM YAMADA PATENT OFFICE (JP)
Download PDF: