Windmill with rotor set at focus of wind gatherer - has rotor rim linked to generator via gearwheel

摘要

The vertical rotor 81), which has three vanes, is set in the circular opening (2) at the focus of a parabolic wind gathering bowl (3). The imaginary axis of the rotor is on the axis of the bowl.The rotor has a toothed rim (6) which meshes with an gearwheel at the bottom of the circular guide channel (5) in the opening. The gearwheel is on the end of the shaft of an electrical generator (8). The whole assembly is mounted on a carrier plate (10) which can be aligned into the wind by rotating on a pivot pin (9) under the control of a fixed vane (11).