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1. (WO2010116770) SHIP PROPULSION DEVICE AND SHIP WITH SAME

Pub. No.:    WO/2010/116770    International Application No.:    PCT/JP2010/050561
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Wed Jan 20 00:59:59 CET 2010
IPC: B63H 1/26
B63H 1/20
Applicants: AKISHIMA LABORATORIES (MITSUI ZOSEN) INC.
株式会社三井造船昭島研究所
Mitsui O.S.K. Lines, Ltd.
株式会社商船三井
MOL Techno-Trade, Ltd.
商船三井テクノトレード株式会社
KIMURA, Kohyu
木村 校優
TAKETANI, Tadashi
竹谷 正
ISHII, Norio
石井 規夫
SHIMIZU, Yoichi
清水 洋一
UCHIDA, Tadashi
内田 格
NISHI, Shuichi
西 修一
TANAKA, Yoshikazu
田中 良和
NOJIRI Takeo
野尻 武生
KOH, Takahiro
高 隆寛
Inventors: KIMURA, Kohyu
木村 校優
TAKETANI, Tadashi
竹谷 正
ISHII, Norio
石井 規夫
SHIMIZU, Yoichi
清水 洋一
UCHIDA, Tadashi
内田 格
NISHI, Shuichi
西 修一
TANAKA, Yoshikazu
田中 良和
NOJIRI Takeo
野尻 武生
KOH, Takahiro
高 隆寛
Title: SHIP PROPULSION DEVICE AND SHIP WITH SAME
Abstract:
Provided is a ship propulsion device which comprises a screw propeller using a fin-equipped propeller boss cap, the ship propulsion device having better workability and less weight than a ship propulsion device using a propeller boss cap provided with fins having a prior art shape. Also provided is a ship provided with the ship propulsion device. The shape of the rear half of fins (6) is formed in such a manner that, with the diameter (Dcf) of the front end of a propeller boss cap (5) defined as the reference diameter (Ds), the shape is contained within a truncated cone formed between the bases thereof which are a circle (C3) centered on the rotation center of the propeller and having a diameter (D3) which is defined at the center position (Xm) between the front end (6f) and the rear end (6a) of the root of each fin (6) and is set to be 2.0 times the reference diameter (Ds), and a circle (C4) centered on the rotation center of the propeller and having a diameter (D4) which is defined at the rearmost position (Xe) of the fin (6) and is set to be 1.5 times the reference diameter (Ds).