ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,208, issued on Oct. 20, was assigned to DR. ING. H.C. F. PORSCHE AG (Stuttgart, Germany).
"Rotor of an externally excited synchronous machine" was invented by Stefan Kummer (Bietigheim-Bissingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor, including a rotor core having teeth arranged star-shaped about a rotor axis, a winding per rotor tooth, which is wound around a corresponding tooth, and a displacement body arranged in a groove between the windings of adjacent teeth and extending in an axial direction. The rotor includes a cooling channel arranged in the displacement body, including a coolant inlet on an axial end face of the d...