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:
Jul. 08, 2025
Filed:
Jun. 14, 2023
Dana Belgium N.v., Flanders, BE;
Fabrice Boon, Hertsberge, BE;
DANA BELGIUM N.V., Bruges, BE;
Abstract
Systems and methods are provided for cooling an electric motor, the electric motor being fluidically coupled to a coolant sump of a gearbox. In one example, a system may include the gearbox including the coolant sump, the electric motor coupled to the gearbox, an outer shaft fluidic ally coupling the electric motor to the coolant sump, an inner shaft extending through each of the coolant sump and the outer shaft, and one or more surface features disposed along a portion of the inner shaft extending within the outer shaft. Upon rotation of the inner shaft during operation of the electric motor, a coolant in the coolant sump may be drawn through the outer shaft from the coolant sump into the electric motor. In this way, the coolant may be passively directed to the electric motor with minimal cost, packaging size, and system complexity and without significant losses in overall system efficiency.