Abstract

A power generator includes a fly wheel rotatably driven by a driving device, a plurality of magnetically repulsive magnets circularly disposed in an extension ring annularly formed on the fly wheel, a plurality of shuttle magnets circularly secured in a carrier ring positioned adjacent to the extension ring with the carrier ring rotatably engageable in a guiding-rail ring, and a plurality of coil windings circumferentially wound around the guiding-rail ring, each repulsive magnet having a front pole facing a rear pole of each shuttle magnet and the rear pole of the shuttle magnet having a polarity as same as that of the front pole of the repulsive magnet, whereby upon a rotation of the fly wheel to rotate the extension ring and the plurality of magnetically repulsive magnets secured in the extension ring, the shuttle magnets in the carrier ring will be rotatably repulsed by the magnetically repulsive magnets to induce current flowing through the coil windings wound on the guiding-rail ring for generating power.