| 摘要 |
An apparatus for harnessing power from a fluid flow such a river comprises at least two cylinders 2, 2' having parallel axes and disposed apart and athwart the current flowing in the river. The apparatus also includes a continuous belt 4, encircling the cylinders having at least one vane 6, rotatable about an axis perpendicular to the direction of the fluid flow, means for positioning each vane obliquely with respect to the current and means, coupled to at least one cylinder, for transmitting power from the fluid flow through rotation of the cylinder. The apparatus is relatively simple, robust, easy to maintain and can be fabricated from easily available local materials. Details are disclosed of means for mounting the or each vane on the belt (Fig 3) and for pivoting the or each vane. Details are also disclosed of a hydraulic accumulator supplied by means of a piston driven by the fluid flow driven apparatus by means of a crank (Fig 5). <IMAGE>
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