Electric motor for an axle assembly

An electric motor for an axle assembly comprising:

• a stator having a stator core, and a rotor adapted for rotation about a rotor axis within the stator core;
• a plurality of magnets associated with and positioned around the rotor, the magnets adapted to rotate with the rotor;
• a plurality of conductive windings disposed about the stator core, the windings being wound in a direction generally parallel to the rotor axis and protrude from first and second ends of the stator core;
• the stator core is formed to include a plurality of longitudinal passageways that are radially arranged about the stator core and are adapted to permit the flow of a cooling fluid through the passageways, the passageways extend longitudinally through the stator core and are positioned between the windings such that heat generated by the windings is transferred to the cooling fluid to remove heat from the windings;
• and
• a clamp ring coupled to a first end of the stator core and a metering ring coupled to the clamp ring, the metering ring adapted to direct the flow of cooling fluid into the stator core to remove heat from the windings generated by operation of the electric motor.

An electric motor for an axle assembly comprising:

• a stator having a stator core, and a rotor adapted for rotation about a rotor axis within the stator core;
• a plurality of magnets associated with and positioned around the rotor, the magnets adapted to rotate with the rotor;
• a plurality of conductive windings disposed about the stator core, the windings being wound in a direction generally parallel to the rotor axis and protrude from first and second ends of the stator core;
• and
• the stator core is formed to include a plurality of longitudinal passageways that are radially arranged about the stator core and are adapted to permit the flow of a cooling fluid through the passageways, the passageways extend longitudinally through the stator core and are positioned between the windings such that heat generated by the windings is transferred to the cooling fluid to remove heat from the windings;
• a metering ring coupled to a first end of the stator core and a discharge ring coupled to a second end of the stator core, the rings adapted to direct the flow of cooling fluid through the passageways of the stator core to remove heat from the windings generated by operation of the electric motor.