Patent ID: 6570276
Filing Date: 2003-05-27
Classification: F04D,H02K

Abstract:
A device for ventilating a rail traction electric motor (1) which includes a stator (8) and a rotor (5), said device comprising a centrifugal fan (24) which rotates coaxially with the rotor (5), is placed in an air inlet chamber (C) and delivers air towards the motor, and a partition (21) which separates said inlet chamber (C) from a confinement space (E) containing at least the rotor (5) and which has at least one opening (26), wherein an air stream (F1) delivered by said fan is split into an inner stream (F2), directed through said at least one opening (26) and then into an interior of the confinement space (E), and an outer stream (F3) directed towards an exterior of the confinement space (E) towards ducts (31) for cooling the stator (8) of the motor.