To provide a vessel capable of dealing with tighter regulation on exhaust gas scheduled to be imposed in a specific exhaust gas regulation marine area in the near future.
A vessel comprises: a four-cycle engine 3 which drives a generator 10; a two-cycle engine 2 which drives a propeller shaft 6 with a propulsive propeller 7 attached thereto only in a specific exhaust gas regulation marine area; a denitrification device 4 where only exhaust gas generated by the four-cycle engine 3 passes; and a shaft generator motor 8 with a function as an electric motor which rotates the propeller shaft 6 by getting power supply from the generator. When output or rotation frequency of the two-cycle engine 2 reaches a predetermined value in the specific exhaust regulation marine area, the vessel maintains the output or the rotation frequency of the two-cycle engine 2 at the predetermined value and increases or decreases only the output of the four-cycle engine 3.
MURATA SATOSHI
HIGUCHI JUN
SHIRAISHI KEIICHI
| JPS6255294A | 1987-03-10 | |||
| JP2005083326A | 2005-03-31 | |||
| JP2007313938A | 2007-12-06 | |||
| JP2009521363A | 2009-06-04 |
| US20050106953A1 | 2005-05-19 |
Kunio Ueda