Variable diameter rotor for wind power machine has shell formed blades arranged in hollows fixed on horizontal rotor axis, with actuating mechanism to extend or retract blade to increase or decrease blade diameter

摘要

A variable diameter rotor for a wind power machine has shell formed blades (2) arranged in hollows (1) fixed to horizontal rotor axis. The length of the blades is increased or decreased by an actuating mechanism to extend or retract the blades to vary the rotor diameter.