Flap wing type wind motor - has wing swivelling around horizontal axis is fitted at end of rocking arm

摘要

Wind motor producing linear driving movement, consists of a rocking arm performing swinging movements around horizontal pivot. The shorter arm is fitted with counterweight and connected to a push rod at the end of which the pump piston or a linear current generator are fitted. The longer arm carries at the end one or several flapping wings swivelling around a horizontal axis. The flapping movements of the wing are limited by stops with built-in shock absorbers. The wind attacking produces a component which moves the rocking arm from one terminal position to the other. At the same time the position of the wing changes and the wind now attacks the opposite surface of the wing, producing a component which now moves the rocking arm in opposite direction. The horizontal swivelling axis at the end of the rocking arm is located downstream beyond the point of attack of the resultant wing lifting forces.