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:
Feb. 24, 2026
Filed:
May. 23, 2023
Dr. Ing. H.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Stefan Oechslen, Stuttgart, DE;
Simon Kuebler, Untergruppenbach Unterheinriet, DE;
DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, Stuttgart, DE;
Abstract
A drive unit includes an electric motor for propulsion and a cooling system. The electric motor includes a stator assembly and a rotor assembly, the stator assembly including a housing, a core with grooves, and a winding assembly. The winding assembly extends through the grooves. The housing includes a housing inlet and outlet. The cooling system includes a first cooling circuit to enable a direct cooling of the winding assembly. The first cooling circuit includes an expansion tank assembly, including a tank, a tank inlet and outlet, and a volume change assembly. The volume change assembly enables change of the total volume of the first cooling circuit as a function of pressure in the first cooling circuit such that, as the pressure in the first cooling circuit increases, a first volume is increased and, as the pressure in the first cooling circuit decreases, the first volume is reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile