US Patent Issued to GM Global Technology Operations on March 31 for "Selective permeability rotor structure for interior permanent magnet machine" (Michigan, California Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,597, issued on March 31, was assigned to GM Global Technology Operations LLC (Detroit).

"Selective permeability rotor structure for interior permanent magnet machine" was invented by Alireza Fatemi (Canton, Mich.), Eric C. Clough (Santa Monica, Calif.), Thomas W. Nehl (Shelby Township, Mich.), Wesley G. Zanardelli (Rochester, Mich.) and David A. Smith (Newbury Park, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radial flux electric motor includes a stator having a radially inner stator surface and stator windings arranged thereon. The motor also includes a rotor mounted inside the stator and configured to rotate relative thereto about an ...