The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2025
Filed:
Jul. 10, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Cheng Gong, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
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 or recessed grooves in a plurality of axially-stacked, monolithic, single piece, disc-shaped laminate sheets that make up the rotor. For a dual, V-shaped set of interior permanent magnets, the inner V-shaped pair of interior permanent magnets are larger than the outer V-shaped pair of interior permanent magnets.