Patent ID: 8492919
Filing Date: 2013-07-23
Classification: F03D,F05B,H02K,Y02E

Abstract:
1. A wind power generator comprising: a nacelle; a hub rotatable about an axis of rotation with respect to the nacelle; at least two blades connected to the hub; a hollow electric machine connected to the nacelle and located inside the nacelle, the hollow electric machine bounded by an inner surface extending about the axis of rotation and having a rotor and a stator; and a cooling system configured to direct airflow from an inlet in the hub to an outlet in the nacelle to cool the hollow electric machine, the cooling system including a deflector body at least partly housed in the hollow electric machine and including a substantially conical central portion configured to guide the airflow to the inner surface of the hollow electric machine, and an end portion which defines a gap between the deflector body and the inner surface of the hollow electric machine, the substantially conical central portion configured to guide the airflow into the gap.