Patent ID: 6641367
Filing Date: 2003-11-04
Classification: F03D,F05B,Y02E

Abstract:
A wind energy conversion apparatus comprising a supporting structure including a number of spokes (2), which is rotatably journalled on a horizontal main shaft (1), wherein wind capturing means (3) having an at least substantially circular plane (5) are mounted on the ends of said spokes, characterized in that each of said wind capturing means has a plane (5) which includes an acute angle ( âˆ ) with the central axis of the main shaft (1), such that the wind capturing means move over the circumferential surface of a truncated cone upon rotation of the supporting structure, which acute angle ( âˆ ) intersects (6) said main shaft upstream and wherein the diameter of the truncated cone on the inflow side is thereby at least substantially half as large as the diameter on the outflow side.