| 摘要 |
Described herein is a rotor for a wind rotor device. The rotor comprises a pair of elongated wings having a curved, e.g., semi-circular, cross-section and arranged in axial direction about a geometrical axis in a symmetrical fashion such that the concave sides of the wings partially overlap each other, defining an axial passage between the inner edges of the wings, the wings being twisted in a screw-shaped manner in relation to one another. A shaft extends in the direction of the geometrical axis and connects one end of the rotor to a frame in a rotatable manner. A plurality of elongated, generally blade-like support ribs rigidly interconnect,at axially spaced intervals, the outer edge of each wing with the inner edge of the other wing. The cross-section of the ribs is convex in one axial direction of the rotor. This rib arrangement increases the stability of the rotor and, at the same time, improves the wind flow conditions within the rotor. (Fig. 6) |
