| 摘要 |
A wind power generating apparatus including a rotor 1 configured by a hub 43 (fig 4), the hub including a pitch bearing 41 (fig 4) for controlling the angle of fixing each of the blades, each of the blades being connected to the hub via the bearing, the cross sectional area of the blade is gradually decreased from the vicinity of a connecting portion 10 with the pitch bearing toward the tip end portion 11 of the blade. The rotor may be of an axial flow type blade. A pitch bearing drive may feature as part of the pitch bearing assembly. The cross section of the connecting root portion 10 of the blade to the hub may be cylindrical. |
