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Patent Searching and Data


Title:
SHIP PROPULSION DEVICE AND SHIP
Document Type and Number:
WIPO Patent Application WO/2018/138941
Kind Code:
A1
Abstract:
A ship propulsion device and a ship include: a port propeller shaft (21) and a starboard propeller shaft (22); a port propeller (23) and a starboard propeller (24); a port shaft bracket (25) and a starboard shaft bracket (26); a port rudder (27) and a starboard rudder (28); and a center skeg (29). Assuming that the distance between the position (P1) at which the propeller shaft (21, 22) projects to the outside from a stern (13) and the center (P2) of the propeller (23, 24) in the front-rear direction is (L1), the width of the center skeg (29) at the extreme lower end position thereof at a middle position (P3), which is a position shifted forward by (L1/2) from the center (P2) of the propeller (23, 24), is b1, and the width of the center skeg (29) at the height of an axial center position (O1, O2) of the propeller shaft (21, 22) at the middle position (P3) is b2, b1 and b2 are set so that b1 ≤ b2.

Inventors:
MATSUMOTO DAISUKE (JP)
Application Number:
JP2017/015907
Publication Date:
August 02, 2018
Filing Date:
April 20, 2017
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B63H5/08; B63B1/08; B63H5/16
Domestic Patent References:
WO2006095774A12006-09-14
WO2010140357A12010-12-09
Foreign References:
JPH08150983A1996-06-11
JP2011098678A2011-05-19
JPS5975885A1984-04-28
JP2016097687A2016-05-30
US20070232158A12007-10-04
JP2011025918A2011-02-10
JP2011168251A2011-09-01
JPH01128489U1989-09-01
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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