| 摘要 |
A wind power generation device capable of further increasing a power generating efficiency, comprising a generally cylindrical duct (1) having a wall cross section formed generally in a wing section, an impeller (2) rotatable around the axis of the duct (1), and a nacelle (5) forming a streamlined pencil body (3) together with the impeller (2) and storing a generator (4) utilizing the rotating force of the impeller (2), wherein the wall cross section of the duct (1) is formed in the wing section so as to be able to produce a reduced pressure area at the rear of the duct (1) and to suppress the occurrence of swirl at the rear of the duct (1), the pencil bod y (3) is installed projectedly from the rear end part of the duct (1) so that the tip part thereof is positioned in the duct and the rear end part is positioned close to the tip part of the reduced pressure area occurring at t he rear of the duct (1), and the blades (21) of the impeller (2) are installed in the maximum wind velocity area (13) inside the duct (1).
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