SELF-CONTROLLED WINDWHEEL Russian patent published in 2001 - IPC

FIELD: wind-power engineering; windmill-electric generating plants. SUBSTANCE: windwheel has working channel with exit diffuser and windwheel shaft with running blades fixed at definite angle to shaft axis. Novelty is that running blades are secured to form at least one row; at least one row of guide vanes is fixed on inner surface of channel; guide vanes of exit row are positioned in parallel to shaft axis; in addition, wind-flow speed governor is mounted in channel between windwheel and exit diffuser and its shaft is coupled with windwheel shaft through step- down reduction unit; trapezoidal-shaped control valves are fixed on driving rods of speed governor so that their plane faces wind flow. In this way, windwheel speed is automatically brought to optimal value. EFFECT: enhanced efficiency and wind-energy utilization factor. 1 dwg