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. 26, 2026
Filed:
Apr. 19, 2024
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Jörg Bender, Würzburg, DE;
Tobias Dieckhoff, Würzburg, DE;
Philipp Neidhardt, Markdorf, DE;
Joao Bonifacio, Meckenbeuren, DE;
Alexander Büttner, Sulzthal, DE;
Tobias Höche, Hallstadt, DE;
Rene Budach, Bad Kissingen, DE;
Robert Lechner, Schweinfurt, DE;
Jens Schönekäs, Grafenrheinfeld, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An electric machine for a vehicle that has a housing, a rotor assembly which can rotate about a rotational axis in the housing, a contactless power transmission device for transmitting electricity to the rotor assembly, in which the power transmission device contains a housing transmitter and a rotor transmitter, wherein the housing transmitter contains a primary core and primary coil, and the rotor transmitter contains a secondary core and a secondary coil, wherein there is a fluid tube for supplying the rotor assembly with fluid that runs coaxially through the rotor assembly, in which the fluid tube has at least one fluid outlet inside the power transmission device, such that a fluid flow path runs through the power transmission device in order to cool the power transmission device.