ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,614, issued on May 26, was assigned to Mahle International GmbH (Germany).
"Electrically excited synchronous machine" was invented by Thorsten Grelle (Stuttgart, Germany), Florian Osdoba (Stuttgart, Germany), Penyo Topalov (Stuttgart, Germany) and Philipp Zimmerschied (Stuttgart, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electrically excited synchronous machine, comprising a stator having a stator housing with at least one axial end-face bearing shield and a stator coil for generating a magnetic stator field, a rotor having a rotor shaft rotatably supported at least on the bearing shield about a rotational axis and a rotor coil for ge...