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. 14, 2023
Filed:
Jun. 05, 2020
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Martin Lang, Wegscheid, DE;
Thomas Auer, Passau, DE;
Sebastian Paulik, Tiefenbach, DE;
Harald Wendl, Vilshofen, DE;
Gerhard Obermaier, Tiefenbach, DE;
Maria Lang, Hauzenberg, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A heat sink () for cooling an electric machine (), includes: a first part of the heat sink () in the form of a hollow cylinder, wherein an inner lateral surface includes a groove () extending helically with respect to a central axis of the hollow cylinder; a second part of the heat sink () in the form of a hollow cylinder, which includes a radially internal fin (); and a third part of the heat sink () in the form of a hollow cylinder, which includes a connecting section (), in order to accommodate an output shaft () of the machine in a rotationally fixed manner. The second part of the heat sink is accommodated, at least partially, in the first part of the heat sink, so that a radially external surface of the second part of the heat sink rests against the groove.