| 摘要 |
The invention relates to a wind wheel having a vertical axis of rotation (7), said wind wheel comprising a rotor (1), which has a vertical shaft (2) and at least one support arm (4), which extends diametrically to the shaft (2) and is provided with blades (5) on both sides of the shaft (2) and is rotatably supported about the longitudinal axis thereof relative to the shaft (2), wherein the blades (5) on both sides of the shaft (2) are arranged at an angular offset from each other about the longitudinal axis of the support arm (4) and have a centroid of the surfaces thereof exposed to wind that lies at a radial distance from the longitudinal axis of the support arm (4). In order to achieve advantageous blade adjustments, the blades (5) are supported on the support arm (4) thereof so as to be rotatable about an axis (9) perpendicular to the radial distance of the centroid and to the longitudinal axis of the support arm (4). |
