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. 21, 2026
Filed:
Aug. 21, 2024
GM Global Technology Operations Llc, Detroit, MI (US);
Mark R. Claywell, Birmingham, MI (US);
James M. Hart, Belleville, MI (US);
Daryl A. Wilton, Macomb, MI (US);
Zachary Juday, West Bloomfield, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A lubrication system for a vehicle includes a heat exchanger having a lubricant inlet and a lubricant outlet with the lubricant outlet having a first outlet branch and a second outlet branch. The lubrication system also includes a stator lubrication circuit, a rotor lubrication circuit, and a gearbox lubrication circuit fluidly connected between the lubricant inlet and the first outlet branch. The gearbox, stator, and rotor lubrication circuits are connected fluidly in parallel with each other. The system also includes a park actuator assembly having a parking pawl configured to move between a parking position and a release position allowing movement of the drivetrain gear and a park actuated valve configured to move into a first position blocking lubricant flow through the second outlet branch when in the parking position and into a second position allowing lubricant flow through the second outlet branch when in the release position.