| 摘要 |
A wind turbine axial flux generator for converting wind into electricity comprises: a generator rotor 46,48 which is rotatable about an axis; and a stator 32-44 wherein one of said generator rotor and said stator is provided with magnets 48 and the other is provided with electrical windings 34. Guides 50,54 direct coolant air flow of working fluid though both the working air gaps to cool adjacent windings whilst guide 52 creates a suction effecting the exit region of the coolant flow. The length of the guides is at least 15% of the radial length of the air gaps and an airflow though the gaps of 15m/s may be generated from a wind speed of 14 m/s. The guides 50,52 may be mounted to the rotor with guide 54 mounted to the stator support rim 30, a brush section 56 being provided between the guide and the rotor. Alternatively the guide 50 may be mounted to the stator rim 30 and the guide 54 be mounted to the rotor and the brush engage the rim 30 |
