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:
May. 23, 2023
Filed:
Oct. 13, 2017
Ford Global Technologies, Llc, Dearborn, MI (US);
Feng Liang, Troy, MI (US);
Alfredo R. Munoz, Ann Arbor, MI (US);
Leyi Zhu, Novi, MI (US);
Michael W. Degner, Novi, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
An electric machine includes a stator and a rotor. The stator has a yoke fitted over a ring that has a plurality of teeth with gaps therebetween for fitting metal windings. The ring of teeth has an inner circumference that is closed and to connect the teeth, and an outer circumference with open gaps or slots between the teeth. The metal windings are fitted through the open outer circumference. Regions of the closed inner circumference between the teeth are treated such that the region's magnetic permeability is reduced relative to the remainder of the stator. The reduction in magnetic permeability provides a magnetic flux barrier between the teeth.