Wing cars and natural energy generating devices equipped with them

摘要

A wing car 18 according to the present invention includes a main shaft 22 rotatably installed around a shaft center and a blade 24 fixed to the main shaft 22 and driven by wind or hydraulic force to rotate around the shaft center, Respectively. The vane (24) has a straight portion (28) extending parallel or perpendicular to the main shaft (22) and a blade tip portion (29) extending from an end of the straight portion (28) (29) is formed so that the shape of the cross section cut along the plane including the axis of the main shaft (22) is spaced apart from the straight portion (28) as it goes from the base end toward the tip end, Or in a curved shape so as to be spaced apart from the straight portion 28 from the base end toward the front end.