Improvements in wind turbine having a wing-profiled diffusor

摘要

Arrangement for wind turbines which comprise not only a rotor (2) which can be caused to rotate about a shaft by a flow of air moving essentially in the direction of the shaft from an inlet side towards an outlet side, but also an annular body (1) enclosing the rotor in a concentric fashion, said body exhibiting on its intended inlet side an inlet having an inner boundary edge in connection with which the rotor is arranged and which makes the transition on the outlet side of the annular body to a front, inner boundary for an outlet which widens out in the direction of the flow and which is terminated by means of a rear, outer boundary edge (19). The transverse profile of the annular body (1) corresponds to a wing profile, of which the rounded leading edge (7-9) forms the inlet, of which the pointed trailing edge (19) forms the outer boundary edge of the outlet, which is situated radially outside said front edge, of which the flatter side (6) forms the inlet face of the ducting and extends from the outer boundary edge (22) of the inlet rearwards and outwards as far as the outer boundary edge (19) of the outlet, and of which the curved side (16-18) forms the outlet.