Title:
SHIP PROPULSION DEVICE AND SHIP WITH SAME
Document Type and Number:
WIPO Patent Application WO/2010/106831
Kind Code:
A1
Abstract:
Provided are a ship propulsion device consisting of a screw propeller which uses a fin-equipped propeller boss cap, and a ship provided with the ship propulsion device. The ship propulsion device and the ship provided with the ship propulsion device have higher propeller efficiency, higher workability, and less weight than a ship propulsion device using a fin-equipped propeller boss cap of prior art and than a ship provided with the ship propulsion device. A ship propulsion device (1A) having fins (6) provided to a propeller boss cap (5A) in such a manner that each of the fins is located behind the region between adjacent propeller blades (3). The rear end section (5a) of the propeller boss cap (5A) is formed as a flat surface or in a shape in which the distance of the rear end section (5a) from a peripheral edge section is within the range of 20% of the overall length (Lc) of the propeller boss cap (5A). Also, the overall length (Lc) is set to 0.28 to 0.76 times the diameter (Dcf) of the front end section of the cap, and the diameter (Dca) of the rear end section (5a) of the propeller boss cap (5A) is set to 0.35 to 0.95 times the diameter (Dcf) of the front end section (5f) of the propeller boss cap (5A).
Inventors:
ISHII NORIO (JP)
KIMURA KOHYU (JP)
TAKETANI TADASHI (JP)
SHIMIZU YOICHI (JP)
UCHIDA TADASHI (JP)
NISHI SHUICHI (JP)
TANAKA YOSHIKAZU (JP)
NOJIRI TAKEO (JP)
KOH TAKAHIRO (JP)
KIMURA KOHYU (JP)
TAKETANI TADASHI (JP)
SHIMIZU YOICHI (JP)
UCHIDA TADASHI (JP)
NISHI SHUICHI (JP)
TANAKA YOSHIKAZU (JP)
NOJIRI TAKEO (JP)
KOH TAKAHIRO (JP)
Application Number:
PCT/JP2010/050560
Publication Date:
September 23, 2010
Filing Date:
January 19, 2010
Export Citation:
Assignee:
AKISHIMA LAB MITSUI ZOSEN INC (JP)
MITSUI O S K LINES LTD (JP)
MITSUI O S K TECHNO TRADE LTD (JP)
ISHII NORIO (JP)
KIMURA KOHYU (JP)
TAKETANI TADASHI (JP)
SHIMIZU YOICHI (JP)
UCHIDA TADASHI (JP)
NISHI SHUICHI (JP)
TANAKA YOSHIKAZU (JP)
NOJIRI TAKEO (JP)
KOH TAKAHIRO (JP)
MITSUI O S K LINES LTD (JP)
MITSUI O S K TECHNO TRADE LTD (JP)
ISHII NORIO (JP)
KIMURA KOHYU (JP)
TAKETANI TADASHI (JP)
SHIMIZU YOICHI (JP)
UCHIDA TADASHI (JP)
NISHI SHUICHI (JP)
TANAKA YOSHIKAZU (JP)
NOJIRI TAKEO (JP)
KOH TAKAHIRO (JP)
International Classes:
B63H1/28; B63H1/20
Foreign References:
| JPH032896U | 1991-01-11 | |||
| JPS5311490A | 1978-02-01 | |||
| JP2002104284A | 2002-04-10 | |||
| JPS63154494A | 1988-06-27 |
Attorney, Agent or Firm:
OGAWA, Shin-ichi et al. (JP)
Shin-ichi Ogawa (JP)
Shin-ichi Ogawa (JP)
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