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:
Dec. 30, 2025
Filed:
Nov. 28, 2023
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Simon Smerczek, Fürstenstein, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A drive module () includes an axle casing () and a shaft () rotatably mounted in an interior space () of the axle casing (). Two bearing units () lie opposite each other and are secured in the axle casing () in an axial direction. Each bearing unit () includes an inner bearing ring () fixedly connected to the shaft (), an outer bearing ring () fixedly connected to the axle casing (), and rolling elements () arranged between the inner bearing ring () and the outer bearing ring (). A lubricating fluid is present at least in the interior space (). The lubricating fluid forming a fluid reservoir at a bottom of the interior space (). The axle casing () includes a fluid opening extending, in each case, from the interior space () to a respective bearing unit () for conducting the lubricating fluid to the rolling elements (). At least one conduction device is fluidically connected to the fluid reservoir and is configured for conducting the lubricating fluid the interior space () to the respective fluid opening.