Wind machine with electric generators and secondary rotors located on rotating vertical blades
OwnerJean St-Germaininventor
Life of this patent
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Abstract
Each vertically rotating blade of a wind-driven main rotor carries a secondary rotor oriented to be driven by the wind during its circular motion about the main rotor axis. The secondary rotors are thus exposed to a much increased relative wind speed and transmit torque to a rotary energy-producing device, such as an electric generator directly coupled to the shaft of the secondary rotor without the necessity of a speed-up transmission. Each secondary rotor may be located, in line with the chords of the main rotor blade, anywhere along said blade but, preferably, in the vicinity of the blade tip.
Claims11
A wind machine comprising a wind-driven main rotor rotatable about a main axis and at least two wind-driven secondary rotors carried by said main rotor equally distant from and symmetrically arranged relative to said main axis and each rotatable about a second axis, which is substantially normal to said main axis, each secondary rotor having a smaller diameter than that of said main rotor whereby said main rotor serves to bodily move said secondary rotors through the air at a much greater speed than the wind speed to which said main rotor is exposed, said secondary rotors adapted to transmit torque to a rotary energy-producing device.
Dependencies are inferred from the claim text.