| 摘要 |
The alternator includes a frame forming the stator (S) and a rotor (R) mounted on a shaft (A), turning within the frame. There is at least one fan (V1, V2) mounted on the rotor, inside the frame, turning with the rotor and comprising a number of blades (12,22). The blades have a transverse profile which is generally parallel to the axis of rotation of the fan. There are also a number of ventilation holes (01-04). These are arranged in two groups, with a first set (01,03) arranged for axial entry of air, and the second set (02,04) arranged for the radial output of air. The blades (12,22) each have a terminal part direction towards the inside in order to present, in conjunction with the end plate of the rotor, a general U-shaped transverse profile. |
