Submersible power generator

摘要

A submersible power generator with 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 and rotatable in a direction opposite of the outer rotational armature, and a pair of propellers disposed coaxially with blades of each of the pairs of propellers twists in opposite directions relative to an extending direction of a central axis of the pair of propellers, and a casing for accommodating and shielding the inner/outer double rotational armatures-type power generation mechanism. The submersible power generator, as installed under water to operate in a current, has a buoyancy F acting thereon that is larger than gravity W acting thereon during operation of the submersible power generator due to gravity acting on the mooring wire, so that F>W+gravity acting on the mooring wire−buoyancy acting on the mooring wire.

主权项

1. A submersible power generator comprising:
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, 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 a casing for accommodating the inner/outer double rotational armatures-type power generation mechanism and shielding the armatures-type power generation mechanism from an external environment, wherein the submersible power generator, as installed under water to operate in a water current, has a buoyancy F acting thereon that is larger than a gravity W acting thereon during operation of the submersible power generator, wherein, as seen on a meridian plane, a rotational moment center, around which a sum total of rotational moments generated by buoyancy F acting on the submersible power generator, gravity W acting on the submersible power generator and drag D acting on the submersible power generator in a water current becomes zero, comes to be located on the casing, and wherein the meridian plane is a vertical plane including a rotational axis of the propellers.