Patent ID: 7994665

Claim:
A method of cooling a generator having: a stator having at least one wire coil, and a rotor body, the rotor body having: a circular portion having a first side and a second side opposite the first side; and a cylindrical portion coaxial with the circular portion, the cylindrical portion extending from the first side of the circular portion, the circular portion and the cylindrical portion defining a longitudinal axis of the rotor body; and the method comprising: providing a flow of coolant through the stator; supplying the coolant to the first side of the circular portion of the rotor body; causing the coolant to move radially along the first side of the circular portion, outwardly from the longitudinal axis; collecting the coolant in at least one chamber formed between the first side of the circular portion and at least one first wall, the at least one first wall being disposed between the first side of the circular portion and the stator; and expelling the coolant from the at least one chamber generally in the direction of the stator.