| 摘要 |
<p>A fluid, eg wind, powered turbine 10 has a hollow pipe 12 extending eg vertically forming a column in which a turbine 20 is housed and on which a fluid-directing structure 14 is supported at or near an end of the column remote from the turbine 20. The fluid-directing structure 14 has a plurality of individual inlet openings (26, fig.4a) spaced around its periphery and arranged to direct fluid into an inner coaxial pipe 18. The turbine 20 is located in the base of the inner pipe 18 which may then extend upwardly within the column 12. The fluid-directing structure 14 may comprise a frame (22, fig.4a) which houses six funnels 36 each having a mouth at an inlet opening of the frame and an outlet 40 connected to a respective outlet pipe (42, fig.2) which leads to the common inner pipe 18. The incoming air is constricted both within the structure 14 and as its exits the column 12 whereby its speed is sufficient to drive the turbine. The turbine may be driven by water currents.</p> |
