| 摘要 |
<p>The wind turbine has a central axis that supports pairs of blades offset by 90°, each pair is integral with a single supporting shaft able to rotate relative to the central axis of the turbine owing to coupling by means of bearings. The pairs of blades are orientated automatically in order to present the maximum possible surface area of the blades to the wind when they move in the direction of the wind, at the same time minimizing the surface area of the blades when they move against the wind. The large surface exposed to the action of the wind is not opposed by a braking action due to the blades moving against the wind, which produces a very high torque on the central axis. The turbine operates with the wind blowing from any direction and is able to start moving even in the presence of very light winds.</p> |
