US Patent Issued to GM GLOBAL TECHNOLOGY OPERATIONS on Feb. 17 for "Motor bearing lubrication" (Michigan Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,060, issued on Feb. 17, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Motor bearing lubrication" was invented by Sen Jiang Zhou (Troy, Mich.) and Jeffrey R. Kelly (Whittaker, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A motor includes a housing with a stator mounted to the housing. A drive shaft is rotatably mounted within the housing by a pair of bearing assemblies, the pair of bearing assemblies each including an inner bearing race and an outer bearing race. A rotor is mounted to the drive shaft. The drive shaft includes a longitudinal oil supply passage therein, the drive shaft including a first radial passage communic...