| 摘要 |
<p>A turbine 1 for extracting energy from flowing fluid, comprises a vertical rotor shaft 6, frames 3 supported by the shaft and projecting radially therefrom and at least two doors 2, 2a hingedly supported by the frame. Each door has a hinge axis 20, 20a parallel to and radially outwardly spaced from the rotor shaft and from each other, the doors being rotatable about their hinge axes between open and closed positions in relation to a plane 3a of the frame. A linkage mechanism 70 connects the doors so that rotation of the first door in one direction causes the second door to rotate in the opposite direction and so that when the first door is open, the second door is also open so that the frame rotates without resisting the flow, whereas when the first door is closed, the second door is also closed thereby forming a continuous flow resisting surface.</p> |
