| 摘要 |
Novelty: vertical-shaft wind generator having blades suspending the development of excessive velocity. Constitution: a steady tube having a generator on its upper part and a bearing at its lower part; three similar internal blades characterised in that they are fixed to the generator and the bearing, in that they are mutually placed at a 120 deg. angle and in that they have three other external aerodynamic blades seated onto the foregoing internal ones. The blades bear special ribs and recesses for the support of their extremities, and an internal wire rope impeding their scattering in case of breaking. Function: due to the increase of the rotational speed, the external blades change gradually position so that the wind incidence angle can change, and the blades -being resistant to the air flow- can maintain relatively stable the rotational speed. |
