Patent ID: 7977808

Claim:
A generator for a rotor, generating electricity by recovering rotational energy of a rotor; the generator comprising a supporting member, a pair of rotating members, a control unit, and a power generation unit; the supporting member being disposed on the rotor and comprising a lower substrate that can be fixed to the surface of the rotor so as to rotate with the rotor, a supporting shaft fixed to the lower substrate, an upper substrate arranged at a predetermined distance from the lower substrate, timbers mounted on the upper substrate so as to extend vertically upward, and a slender shaft material mounted in the timbers so as to be almost parallel to the surface of the rotor; and the supporting member being capable of fixing the supporting shaft to the upper substrate or releasing the fixation of the supporting shaft to the upper substrate, thereby fixing or releasing the shaft material to or from the rotor; the rotating members being disposed respectively at both ends of the shaft material so as to be rotatable around the shaft material, which is a central axis, and being shifted by 180 degrees from each other relative to the center of rotation around the shaft material while rotating; the control unit releasing the fixation of the supporting shaft to the upper substrate so that the shaft material is independent of the rotation of the rotor when the direction of rotational movement of each rotating member around the shaft material is coincident with the direction of rotational movement of the rotor, thereby accelerating both ends of the shaft material as a result of being pulled by each rotating member; and the control unit fixing the supporting shaft to the upper substrate so that the shaft material rotates with the rotor when the direction of rotational movement of each rotating member around the shaft material is opposite to the direction of rotational movement of the rotor; the power generation unit generating electricity by recovering energy obtained when the both ends of the shaft material are accelerated by the rotation of the rotor, as the rotation of the upper substrate relative to the lower substrate.