Wind energy conversion apparatus
AssigneeAerolift Patents B.V.
InventorFrederikus Van der Klippe
Life of this patent
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Abstract
A wind energy conversion apparatus comprising a supporting structure including a number of spokes, which is rotatably journalled on a horizontal main shaft, wherein auxilliary rotors having an at least substantially circular plane of inflow are mounted on the ends of the spokes, wherein each of the auxilliary rotors has a plane of inflow which includes an acute angle with the central axis of the main shaft and which intersects the central axis upstream of the main shaft, and wherein the auxilliary rotors are made up of rotors including rotor blades or of conical bodies having a large apex angle, whose base is directed towards the oncoming wind.
Claims6
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 ( ∝) 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 ( ∝) 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.
Dependencies are inferred from the claim text.