| 摘要 |
PROBLEM TO BE SOLVED: To provide an underwater floating ocean current power generation device for enabling smooth pouring and draining water without worsening pump performance, and thus enabling quick buoyancy adjustment.SOLUTION: In a pod (2) of an ocean current power generation device (1), an air pipe (9) opening onto a sea surface via a float (10) is provided extending from a hub part (5) of a turbine (4) to the downstream side of an ocean current. During draining water from a ballast tank (13), air is sucked from on the sea surface via the air pipe (9) into the ballast tank (13). |
