| 摘要 |
An airfoil 11 for attachment to a hub 13 of a windmill 15 or other turbomachine, the airfoil 11 comprises a leading rod 17 and a trailing rod 27, the leading rod 17 and trailing rod 27 preferably are flexible and able to deflect in a direction opposite to that of the direction of rotation, the leading rod 17 having a first end 19 and a second end 21, the first end 19 secured by a leading rod mount 23 of the hub 13 located at a leading mount location 25, the trailing rod 27 has a base end 29 and a tip end 31, the tip end 31 connected with the second end 21 of the leading rod 17, and the base end 29 secured by a trailing rod mount 33 of the hub 13 located at a trailing mount location 35, and fabric sleeve 37 is stretched over the leading rod 17 and the trailing rod 27; the aerodynamic characteristics of each airfoil are configurable by modifying the orientation of the position/alignment of the leading red 17 relative to the trailing rod 27; and the invention including an assembly of airfoils attached to a hub 13, and a method of harnessing energy using the airfoil 11 of the invention.
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