ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,894, issued on Dec. 16, was assigned to DR. ING. H.C. F. PORSCHE AG (Stuttgart, Germany).
"Cooling system for an electric traction machine for a motor vehicle" was invented by Stefan Oechslen (Stuttgart, Germany) and Simon Kuebler (Unterheinriet, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cooling system for an electric traction machine includes a looped conduit system for conducting a first cooling liquid and a circulation pump for conveying the first cooling liquid in a first circulation direction. The cooling system includes an expansion tank filled at least partially with the first cooling liquid and a gas, and a motor input termina...