| 摘要 |
[Object of the Invention] An object of the present invention is to provide a submersible power generator which can be stably moored in water and can generate high electromotive voltage without being increased in size. [Disclosure of the Invention] A submersible power generator comprising relatively rotating inner and outer rotational armatures, propellers for driving the inner and outer rotational armatures to rotate relatively to each other, and a casing for accommodating the inner and outer rotational armatures, which submersible power generator comprises an inner/outer double rotational armatures-type power generation mechanism provided with an outer rotational armature and an inner rotational armature opposing the outer rotational armature to rotate in a direction opposite to a direction of rotation of the outer rotational armature, and a pair of propellers disposed coaxially with blades of one of the pair of propellers and blades of the other of the pair of propellers twisted in opposite directions relative to an extending direction of a central axis of the pair of propellers, wherein one of the propellers is connected to one of the inner and outer rotational armatures and the other of the propellers is connected to the other of the inner and outer rotational armatures, and further comprises a casing for accommodating the inner/outer double rotational armatures-type power generation mechanism and shielding it from an external environment, and which submersible power generator, as installed under water to operate in a water current, is made to have buoyancy F acting thereon which is larger than gravity W acting thereon during operation of the submersible power generator (when the submersible power generator is moored by a mooring wire, F > W + gravity acting on the mooring wire - buoyancy acting on the mooring wire). |
