Title:
Vessels equipped with torsion rudders and torsion rudders for ships
Document Type and Number:
Japanese Patent JP6292551
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a twist rudder for a ship in which an energy loss of an asymmetric flow not recovered by a propeller and a flow going through on a propeller plane is recovered as the lift generated by a rudder wing cross section, thereby obtaining the maximum transport efficiency as a whole propulsion system, and to provide a ship equipped with the twist rudder.SOLUTION: A twist rudder for a ship is the rudder mounted in a stern part 2 at the rear of a propeller 3 of the ship. A rotating shaft 11 for rotating the rudder is positioned in a virtual vertical plane V passing a propeller shaft 3x. A cross-sectional shape of the rudder is made a wing type. A twist angle θ to the virtual vertical plane V of the wing type continuously changes in the height direction of the rudder in any of the left and right in the virtual vertical plane V so as to respond to an asymmetric flow at the stern part 2.
Inventors:
Yasuo Ichinose
Noriyuki Sasaki
Ryohei Fukasawa
Tatsuya Hamada
Hideki Kawashima
Junichi Fujisawa
Kenichi Kume
Nobuaki Sakamoto
Konami Kawanami
Shotaro Uto
Noriyuki Sasaki
Ryohei Fukasawa
Tatsuya Hamada
Hideki Kawashima
Junichi Fujisawa
Kenichi Kume
Nobuaki Sakamoto
Konami Kawanami
Shotaro Uto
Application Number:
JP2013263072A
Publication Date:
March 14, 2018
Filing Date:
December 19, 2013
Export Citation:
Assignee:
National Research and Development Agency Maritime, Port and Aeronautical Technology Research Institute
International Classes:
B63H25/38; B63B1/08; B63H5/08
Domestic Patent References:
| JP5777282A | ||||
| JP201235785A | ||||
| JP7237594A | ||||
| JP5830896A | ||||
| JP5355893A | ||||
| JP2151596A | ||||
| JP5816996A | ||||
| JP5948294A |
Foreign References:
| US5415122 | ||||
| US3930456 |
Attorney, Agent or Firm:
Shinichi Abe
Yoshihiro Shimizu
Yuji Tsujida
Kazunori Fujie
Ichiro Kaneko
Yoshihiro Shimizu
Yuji Tsujida
Kazunori Fujie
Ichiro Kaneko