US Patent Issued to GM Global Technology Operations on Dec. 9 for "Axial flux electric machine rotor with continuous Halbach array magnets" (Michigan Inventors)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,685, issued on Dec. 9, was assigned to GM Global Technology Operations LLC (Detroit).

"Axial flux electric machine rotor with continuous Halbach array magnets" was invented by Alireza Fatemi (Canton, Mich.) and Thomas W. Nehl (Shelby Township, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor for rotatably mounting on a rotational axis in an axial flux electric motor includes a permanent magnet (PM) disc having a continuous Halbach magnetization profile. The axial flux electric motor also includes a rotationally fixed stator having a plurality of conductive stator magnetic poles arranged radially about the rotational axis. The rotor is spa...