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. 28, 2025
Filed:
Dec. 17, 2021
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Martin Christians, Friedrichshafen, DE;
David Wörzler, Langenargen, DE;
Rayk Gersten, Friedrichshafen, DE;
Stefan Spühler, Friedrichshafen, DE;
Martin Jelinewski, Nonnenhorn, DE;
Wolfgang Hübler, Wolpertswende, DE;
Timo Hele, Tettnang, DE;
Karlheinz Hoher, Markdorf, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A cooling arrangement for cooling a stator for an electric machine. The cooling arrangement comprising a stator fixedly mounted relative to a rotational axis. The stator comprises a stator yoke and stator grooves. Windings are provided in the stator grooves, which form first and second winding heads. First and second fluid rings are provided at opposite ends on the stator yoke. The first fluid ring has a fluid inflow opening from a stator housing. The stator yoke has a plurality of axial stator ducts extending in the axial direction, which enable the inflowing fluid to flow through from the first fluid ring to the second fluid ring, and the second fluid ring redirects some of the fluid.