US Patent Issued to GM Global Technology Operations on March 17 for "Selective permeability rotor sleeve for interior permanent magnet machine" (California, Michigan Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,435, issued on March 17, was assigned to GM Global Technology Operations LLC (Detroit).

"Selective permeability rotor sleeve for interior permanent magnet machine" was invented by Eric C Clough (Santa Monica, Calif.), Alireza Fatemi (Canton, Mich.), Thomas W Nehl (Shelby Township, 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 axis. The rotor has a rotor core defined by a ...