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:
Apr. 28, 2020
Filed:
Dec. 07, 2018
GM Global Technology Operations Llc, Detroit, MI (US);
Bradley A. Newcomb, Troy, MI (US);
Song He, Troy, MI (US);
Seongchan Pack, West Bloomfield, MI (US);
Sean R. Wagner, Shelby Township, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
Motor housings with controlled radial thermal expansion include a cylindrical body with at least one circumferential groove extending inward from an outer surface of the cylindrical body, and a fiber composite band disposed within each groove. The grooves can be dovetail shaped and extend inward from the outer surface of the cylindrical body to a groove bottom, wherein each groove has a first width at the outer surface and a second width at the groove bottom that is greater than the first width. Methods for controlling radial thermal expansion of motor housings include providing a motor housing including a cylindrical aluminum body with a plurality of circumferential grooves extending inward from an outer surface of the cylindrical body, disposing a plurality of continuous fibers within the grooves, applying a matrix to the continuous fibers, and curing the matrix to form a fiber composite band within the grooves.