Title:
VESSEL
Document Type and Number:
Japanese Patent JP2023152466
Kind Code:
A
Abstract:
To provide a vessel capable of improving propulsion efficiency during sailing, and a control device.SOLUTION: A first buoyance body 3A and a second buoyancy body 3B are larger in under-water resistance as it goes upward from a vessel bottom. Thus, in the first buoyancy body 3A on the right side in which a main hull 2 inclines, a portion with large upper resistance is also disposed under water. On the other hand, in the second buoyancy body 3B on the left side, a portion with large upper resistance appears out of a water level. Thus, as shown in Fig.3(b), resistance RF2 of the second buoyancy body 3B on the left side becomes smaller while resistance RF1 of the first buoyancy body 3A on the right side becomes larger. Such a resistance difference can cancel turning-round moment MT of turning left caused by right inclination of the main hull 2. Thus, the turning caused by the turning-round moment MT can be dealt with without operating a rudder 15 which reduces propulsion efficiency.SELECTED DRAWING: Figure 3
Inventors:
ARAI YUJI
MASUTANI AKIHIKO
MASUTANI AKIHIKO
Application Number:
JP2022062501A
Publication Date:
October 17, 2023
Filing Date:
April 04, 2022
Export Citation:
Assignee:
SUMITOMO HEAVY IND MARINE & ENG CO LTD
International Classes:
B63B1/40; B63B1/12; B63H9/02; B63H25/00
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yasuki Yanagi
Yoshiki Kuroki
Yasuki Yanagi