US Patent Issued to GM Global Technology Operations on Dec. 9 for "Surface/interior permanent magnet rotor for an electric machine" (Michigan Inventor)

ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,683, issued on Dec. 9, was assigned to GM Global Technology Operations LLC (Detroit).

"Surface/interior permanent magnet rotor for an electric machine" was invented by Cheng Gong (Troy, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-phase, multi-pole surface/interior permanent magnet motor/generator (S/IPM electric machine) includes a rotor disposed on a rotor shaft within an annular stator, and a plurality of interior and surface mounted magnets disposed in axially-oriented slots of the rotor. The interior magnets are single or dual, and V-shaped or U-shaped. The surface-mounted permanent magnets are disposed in axially-oriented slots ...