ROTARY WINDMILL Russian patent published in 1998 - IPC

FIELD: agricultural machinery industry; windmill machines for soil cultivation, water supply to mills; river and sea-going ships. SUBSTANCE: rotary windmill has rotor mounted in case on vertical shaft and provided with two wings in the form of two half- cylinders relatively offset through distance not shorter than their radius and rigidly fixed between top and bottom disks. Rotor wings have blow-through flaps in the form of concave plates following shape of wing and mounted in a spaced relation to external surfaces of wings. Case has widely swinging doors for admitting and discharging air stream and conveying it to rotor wings; it is made in the form of diffuser. Case doors are mounted for starting the rotor in open position and its stopping in closed position. EFFECT: simplified design, improved reliability, improved protection against adverse weather conditions. 4 cl, 3 dwg