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:
Mar. 04, 2025
Filed:
May. 04, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Janek Kraeuter, Ludwigsburg, DE;
Timo Kiekbusch, Ludwigsburg, DE;
Tobias Schlittenbauer, Tamm, DE;
Witold Techman, Bietigheim-Bissingen, DE;
Zhengyu Liu, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a drive unit () for a vehicle, comprising an electric machine () having a rotor shaft () and a transmission () having a transmission shaft (). According to the invention, the rotor shaft () and the transmission shaft () are interlocking and coupled by means of an interlocking toothing (), wherein a lubricant channel () is formed in the transmission shaft (), which feeds into an inner space () of the rotor shaft () at the end facing the rotor shaft () in order to provide lubricant for the interlocking toothing (), wherein the rotor shaft () has an end side () at the axial end facing the transmission shaft (), on which end side one or more openings () are formed, extending from an inner circumference () of the rotor shaft () bordering the inner space () to the outer circumference () thereof, such that the lubricant channel () is fluidically connected to the openings () via the inner space () and the interlocking toothing ().