ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,539, issued on April 15, was assigned to DANA TM4 INC. (Boucherville, Canada).

"Electric axle with direct rotor and head spray cooling" was invented by Carl Trudel (Boucherville, Canada), Steven Vanhee (Hooglede, Belgium) and Luke Miller (Montreal).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems are provided for an electric axle in a vehicle. An electric axle comprises an electric motor having a stator and a rotor, a coolant manifold mounted to an end plate of the rotor, wherein the coolant manifold is configured to flow coolant to rotor coolant lines extending axially through the rotor, and a first spray ring arranged adjacent to t...