| 摘要 |
<p>Apparatus for deriving energy from fluids in flow, and more especially from fluids in natural flow, i.e. air in the case of winds and water in the case of seas and rivers comprises a circumferential series of vanes (37) fixedly mounted individually on a circumferential series of equi-spaced outer spindles (27). The spindles are mounted on to be freely rotatable relative to upper and lower series of equi-spaced radial arms (25, 26) fast with a central spindle (10) to rotate in unison therewith through 360o on each rotation of the vanes and the respective outer spindles through 180o. This 2:1 ratio is determined by a timing mechanism-comprising sprocket wheels (41) concentrically mounted fast on individual outer shafts and linked, for transmission of drive, with sprocket wheel means (44) concentric with and fast on a sleeve (20) in turn concentric with and freely rotatable relative to said central spindle (10).</p> |
