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.

Date of Patent:
Mar. 03, 2026

Filed:

Oct. 19, 2023
Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

Vincent Fedida, Shanghai, CN;

Jian Yao, Shanghai, CN;

Chengwu Duan, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/14 (2006.01); B60L 50/60 (2019.01); H02K 21/24 (2006.01);
U.S. Cl.
CPC ...
H02K 1/146 (2013.01); B60L 50/60 (2019.02); H02K 21/24 (2013.01);
Abstract

An electrical machine includes a rotationally-fixed stator defining a rotational axis of the electrical machine and having a plurality of stator magnetic poles, the stator magnetic poles disposed about the rotational axis. The electrical machine also has a rotor rotatably mounted coaxially with the rotational axis and axially spaced from the stator, the rotor having a plurality of permanent magnets facing the stator magnetic poles. Each stator magnetic pole includes a plurality of ferromagnetic laminations in a lamination stack that extends from a radially-inward extent to a radially-outward extent relative to the rotational axis, and a ferromagnetic composite pole portion affixed to the radially-outward extent or the radially-inward extent of the lamination stack of the stator magnetic pole.


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