Title:
STERN DUCT WITH SMALL BLADES AND VESSEL
Document Type and Number:
Japanese Patent JP2011042201
Kind Code:
A
Abstract:
To further exert an energy-saving effect by improving a stern duct existing conventionally as an energy-saving device of a vessel.
This vessel 100 includes the duct 20 with small blades including a cylindrical duct body 21 arranged at a stern part in front of a propeller 2 and a plurality of small blades 22s provided in the duct body 21 and mounted on a port side and a starboard side of the stern part. The duct body 21 has a cross section having an airfoil inside thereof, for instance. The small blades 22s are constituted of asymmetrical blades or symmetrical blades.
Inventors:
MASUDA SEIJI
TAKAGISHI KENJI
HIROTA KAZUYOSHI
YAMAZAKI KEIICHI
TAKAGISHI KENJI
HIROTA KAZUYOSHI
YAMAZAKI KEIICHI
Application Number:
JP2009190697A
Publication Date:
March 03, 2011
Filing Date:
August 20, 2009
Export Citation:
Assignee:
UNIVERSAL SHIPBUILDING CORP
International Classes:
B63H5/16
Domestic Patent References:
| JPH09175488A | 1997-07-08 | |||
| JP2007331549A | 2007-12-27 | |||
| JP2008143488A | 2008-06-26 | |||
| JPH0424895U | 1992-02-27 | |||
| JPH0317996U | 1991-02-21 | |||
| JPS60139699U | 1985-09-14 | |||
| JPS60127299U | 1985-08-27 | |||
| JPS56166999U | 1981-12-10 | |||
| JPS62197495U | 1987-12-15 |
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Yasushima
Takanashi Norio
Taku Ogawa
Kiyoshi Yasushima
Takanashi Norio
Taku Ogawa