WATER FLOW ELECTRICITY GENERATING DEVICE

摘要

Provided is a water flow electricity generating device (1) equipped with: a ring-shaped stator (6) provided with a coil (26); a permanent magnet (31) that induces magnetism in the coil (26); a rotor main body (32) that is arranged at the inner circumferential side of the stator core (25) and supports the permanent magnet (31); a blade support unit (33) provided farther forward than the rotor main body 32); a rotor (7) having rotating blades (8) protruding axially outward from the blade support unit (33); and water-lubricated bearings (39, 40) provided on the stator (6) opposing the rotor main body (32) to support the load in the thrust direction and the radial direction. The blade support unit (33) is arranged farther forward than the rotor main body (32), and the rotor (7) has a float unit (43) arranged farther forward than the rotor main body (32).