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:
Sep. 01, 2026
Filed:
Jun. 19, 2024
Magna Powertrain of America, Inc., Troy, MI (US);
Abstract
An electric drive module has an electric motor with a hollow rotor and a gearbox output shaft extending coaxially within the hollow rotor. Cooling medium cycles through an annular volume defined between the rotor and the shaft. A distribution housing is fixed relative to the motor housing and extends around the output shaft to define an annular chamber that receives cooling medium from an inlet of the distribution housing. The shaft and rotor rotate relative to the annular chamber, and cooling medium from the annular chamber is directed by the distribution housing into the annular volume to cool the rotor. The distribution housing may include an annular seal that engages an end face of the hollow rotor. The distribution sleeve may extend into the annular volume, or may be a two-piece structure with an outer housing and an inner sleeve.