Title:
STERN ADDITION, STERN SHAPE HAVING STERN ADDITION, AND VESSEL
Document Type and Number:
Japanese Patent JP2021006415
Kind Code:
A
Abstract:
To provide a stern addition, a stern shape, and a vessel with better energy conservation effect.SOLUTION: A stern addition 30 attached in front of a propeller attached to a stern of a vessel includes: a duct 31 forming a partial circular shape with a principal unit provided on a top unit of a propeller shaft 21 of the propeller; a plurality of pillars 32 attaching a duct 31 to the stern; and a fin 33 to be attached to at least to the stern provided on a bottom unit of the propeller shaft 21, and an angle of torsion of the fin 33 to the propeller shaft 21 is set to be greater than the angle of torsion of the pillars 32.SELECTED DRAWING: Figure 2
Inventors:
ICHINOSE YASUO
KAWASHIMA HIDEMIKI
KAWAKITA CHIHARU
KAWASHIMA HIDEMIKI
KAWAKITA CHIHARU
Application Number:
JP2019120641A
Publication Date:
January 21, 2021
Filing Date:
June 28, 2019
Export Citation:
Assignee:
PORT & AIRPORT RES INST
International Classes:
B63H5/16; B63B1/08
Domestic Patent References:
| JP3213165U | 2017-10-26 | |||
| JP2018094959A | 2018-06-21 | |||
| JP2016175635A | 2016-10-06 |
Foreign References:
| GB2177365A | 1987-01-21 |
Other References:
梶谷尚ら: "“３．省エネルギー船のための要素技術”", 日本造船学会誌, vol. 第632号, JPN6023007753, February 1982 (1982-02-01), pages 32 - 55, ISSN: 0005000108
Attorney, Agent or Firm:
Shinichi Abe
Yoshihiro Shimizu
Yuji Tsujida
Takaaki Ota
Yoshihiro Shimizu
Yuji Tsujida
Takaaki Ota