WATER FLOW ELECTRICITY GENERATING DEVICE

摘要

A water flow electricity generating device (1) includes: an annular stator (6) in which a coil (26) is provided; a permanent magnet (31) that causes a magnetic force to act on the coil (26); a rotor main body (32) that is disposed on an inner circumferential side of a stator core (25) to support the permanent magnet (31); a blade support unit (33) that is provided on a front side of the rotor main body (32); a rotor (7) that includes a rotating blade (8) projecting radially outward from the blade support unit (33); and water-lubricated bearings (39,40) that are provided in the stator (6)while being opposed to the rotor main body (32), the water-lubricated bearings (39,40) supporting loads in a thrust direction and a radial direction. The blade support unit (33) is disposed on a front side of the rotor main body (32), and the rotor (7) includes a float unit (43) that is provided on the front side of the rotor main body (32).