Patent ID: 7665966

Claim:
A flow-controlled wind motor rotor comprising: one or more blades, said blades rotating around a central vertical axis in a main bearing, said blades being parallel to the central vertical axis, said blades being connected via crossbars, said blades being disposed freely rotatably in bearings, said blades comprising a symmetrical aerodynamic profile over their entire cross-section, said blades being orientable to a direction of a wind, and said rotor comprising a wind vane to capture the direction of the wind, wherein said rotor comprises a primary control mechanism, which is controlled by said wind vane and aligns said profiles of said blades along the wind direction at each point of their trajectory around the central vertical axis, said blades being disposed on said crossbars, said rotor comprises a secondary control mechanism, which is subordinate to the primary control mechanism and aligns longitudinal axes of said profiles of said blades to the wind at each point of their trajectory around the central vertical axis so as to produce an optimum aerodynamic force depending on a rotation angle of the crossbars with respect to the wind vane and a rotation velocity of the crossbars, and said primary control mechanism comprises a belt transmission with a common driving pulley and at least one V-belt drive, and the secondary control mechanism comprises at least one stepping engine with a worm gear.