Patent ID: 6132172
Filing Date: 2000-10-17
Classification: F03D,Y02E

Abstract:
A windmill, comprising;a conical rotor unit including a conical rotor, a plurality of spaced curved blades attached on the conical rotor, surface, a plurality of outer slant blades and a cone shaft, the curved blades having one end adjacent a cone ring at a circumference of the conical rotor, the outer slant blades having one end slantly fixed to the cone ring at a slant direction coinciding with curvature of the curved blades and another end thereof engaged with an outer ring located radially outside the cone ring;a frame having a pair of triangle brackets supporting the conical rotor unit on the cone shaft, two short spindles at two sides thereof for supporting the brackets through two arms mounted on a flat board, a counter balance weight located at one end of the flat board for balancing the weight of the conical rotor unit, and a pair of spaced spring rods having one end thereof engaging with the flat board and another end thereof engageable with the brackets, anda base having a bearing for supporting the flat board and the conical rotor unit.