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:
Jan. 13, 2026
Filed:
Jun. 20, 2022
Audi Ag, Ingolstadt, DE;
Harald Gloede, Pförring, DE;
Christian Prütting, Kösching, DE;
Audi AG, Ingolstadt, DE;
Abstract
A coolant supply system for an electric machine, in which a free electric machine space is provided in the axial direction between the rotor/stator arrangement and an electric machine housing wall, to which coolant can be applied, in particular for stator cooling. The electric machine has a rotor shaft bearing arrangement in which the rotor shaft is rotatably mounted in a hub section of the electric machine housing wall via a rotary bearing. The bearing opening is sealed to the outside of the housing using a sealing element, with the formation of a free space between the rotary bearing and the sealing element. The electric machine housing wall has a coolant connection, via which coolant can be guided from the electric machine space into the free space.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile