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:
Jun. 27, 2023
Filed:
Oct. 29, 2020
GM Global Technology Operations Llc, Detroit, MI (US);
Anthony M. Coppola, Rochester Hills, MI (US);
Kestutis A. Sonta, Troy, MI (US);
Alireza Fatemi, Canton, MI (US);
Gayatri V. Dadheech, Bloomfield Hills, MI (US);
Yew Sum Leong, Northville, MI (US);
Xiaosong Huang, Novi, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An adhesive-reinforced rotor for a rotary electric machine includes rotor lamination layers ('rotor lams') having axial inner surfaces collectively defining rotor openings through the rotor lams. The rotor also includes reinforcement blocks disposed within a respective one of the rotor openings. A polymer primer/adhesive layer of the rotor having a bond line thickness of less than 1 mm is disposed between the one or more reinforcement blocks and the axial inner surfaces of the rotor lams. The reinforcement blocks and the primer/adhesive layer each have a tensile strength of at least 50 MPa. A modulus of elasticity of the reinforcement blocks is at least three times greater than that of the materials of the polymer primer/adhesive layer. A method of constructing an adhesive-reinforced rotor is also described herein.