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. 11, 2021
Filed:
Jul. 11, 2019
GM Global Technology Operations Llc, Detroit, MI (US);
Stephen G. Heien, Lake Orion, MI (US);
John A. Diemer, Sterling Heights, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
An electric drive unit for powering a load, e.g., road wheels of a motor vehicle, includes a housing having a floor section separating the housing into upper and lower chambers. The floor section defines an elongated drain opening, drain holes, and an oil supply port in fluid communication with an oil pump. A rotary electric machine is enclosed within the lower chamber, and has electrical leads positioned directly below the drain opening. A cover assembly is fastened to the housing within the upper chamber, and has a coolant channel assembly integrally connected to a cover plate. The coolant channel assembly includes electrical terminals that project through the drain opening and are fastened at a first distal end of the electrical terminals to the electrical leads. The cover assembly defines a primary coolant channel in fluid communication with the oil supply port, and directs oil to the electrical terminals.