| 摘要 |
A wind turbine with a vertical axle supporting a plurality of frame assemblies is mounted to the axle in spaced apart radial positions wherein each of the frame assemblies has a vertically oriented flat screen fixed between a pair of spaced apart struts, a stationary or rotating arm is vertically oriented and mounted between the struts and to one side of the screen, and a flexible sheet is fixedly mounted along one of its edges to the stationary arm. With a wind blowing in any direction, at least one of the flexible sheets is positioned for being blown against one of the flat screens, thereby driving the axle in rotation, and at least one of the flexible sheets is positioned for being blown away from one of the flat screens thereby lowering wind resistance.
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