| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thruster with a duct having a high propulsion force. <P>SOLUTION: The thruster 1 with the duct for ships includes a strut 3 extending downward from a bottom part 2 of a ship, a pod 4 connected to a lower portion of the strut 3 and extending backwardly, a propeller 5 connected to a rear portion of the pod 4 to generate the water flow, and a duct 6 arranged behind the strut 3 to surround the propeller 5. A maximum diameter part 4a of the pod 4 is arranged at the position corresponding to a front end 6a of the duct in the longitudinal direction. <P>COPYRIGHT: (C)2010,JPO&INPIT |
