ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,248, issued on May 6, was assigned to VITESCO TECHNOLOGIES GMBH (Hannover, Germany).
"Rotor shaft arrangement for an electric machine" was invented by Holger Frohlich (Berlin) and Isao Fukumoto (Berlin).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor shaft arrangement for an electric motor or for an electrodynamic machine. The rotor shaft arrangement has a rotor shaft, and a fluid passage, which is arranged at least partially within the rotor shaft and is designed to carry a cooling fluid along a longitudinal extent direction of the fluid passage. The rotor shaft arrangement furthermore has at least one feed channel, which is arranged at least...