Patent ID: 8466577
Filing Date: 2013-06-18
Classification: H02K,Y02E

Abstract:
1. An electrical generator comprising a turbine wheel mounted for rotation on a horizontal axis, said electrical generator comprising: a circular rotor mounted on said turbine wheel and extending concentrically about the horizontal axis for rotation with said turbine wheel in a perimeter path about the horizontal axis, said circular rotor including radially extending opposed sides, a stator positioned at the perimeter path of said circular rotor, said stator including field coils positioned on said opposed sides of said circular rotor and facing said opposed sides of said circular rotor as said circular rotor rotates about the horizontal axis for generating electricity in response to the rotation of said rotor, a linear actuator coupled to each said field coil for moving said field coils toward or away from said rotor, and a proximity sensor movable with said stator field coils at said opposed sides of said rotor for determining the position of said stator field coils with respect to said opposed sides of said rotor such that in response to a change in proximity of said circular rotor with respect to said field coils the proximity censor activates said linear actuator to move said field coils closer to or further away from said opposed sides of said rotor.