Patent ID: 8783135

Claim:
An electro-mechanical drive-unit connectable with at least one power source for launching and propelling a vehicle, comprising: an input member and an output member; a drive-unit housing; a gearing arrangement operatively connected to each of the output and input members; a pump configured to circulate pressurized fluid inside the drive-unit; and an electric motor including: a rotor operatively connected to the gearing arrangement; a stator fixed with respect to the drive-unit housing and having wire windings; a motor housing configured to retain the rotor and the stator; and a fluid cavity generated between the drive-unit housing and the motor housing and configured to receive the pressurized fluid; wherein: the drive-unit housing defines a passage that is in fluid communication with the fluid cavity; and a fastener having a fastener head and a fastener shank is secured within the passage such that the passage discharges the pressurized fluid from under the fastener head onto the wire windings for cooling and/or lubrication thereof.