| 摘要 |
A flow harnessing arrangement for extraction of energy from fluid flows, such as wind or water flow. The arrangement comprises a flow harnessing element 31 on an arm 21 to drive a drive mechanism through a drive cycle, where the arm is arranged to configure the flow harnessing element in at least a thrust position and a return position, the arm having opposed thrust and return bias mechanisms to urge the flow harnessing element to the thrust and return positions. There are thrust and return lugs 22, 25 to define the thrust and return positions across the drive cycle and thrust and return release fingers 2, 5 associated with the drive mechanism arranged at the limits of the drive cycle to alternately release the thrust or return bias mechanism to orientate the arm and the flow harnessing element towards the thrust or return position.
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