Drive rotor for vertical motion wind power systems has blade with flat wave profile that is twisted in longitudinal direction with flat pitch angle with zigzag or sinusoidal normal function profile

摘要

The drive rotor has a blade with a flat wave profile that is twisted in the longitudinal direction with a flat pitch angle. The wave profile can be formed from three straight elements into a zigzag or according to a sinusoidal normal function (y=sinx). The blade is mounted at one end. The thickness of the blade at its bearing end is greater than or equal to the blade thickness and less than or equal at its free end.