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. 12, 2026
Filed:
Oct. 02, 2023
Wieland-werke Ag, Ulm, DE;
Gerhard Thumm, Erbach, DE;
Volker Voggeser, Senden, DE;
Michael Wolf, Ulm, DE;
Jochen Walliser, Ulm, DE;
WIELAND-WERKE AG, Ulm, DE;
Abstract
A rotor of an electric asynchronous machine including a shaft, a rotor core and short-circuit rings attached to end faces of the rotor. The shaft has an outer lateral radial surface, a cavity extending axially, at least one passageway located on the lateral surface, and at least one channel connecting the cavity to the passageway. The rotor core has at least one channel extending therein. At least one of the short-circuit rings is composed of at least two ring-shaped disks interconnected to form a disk pack. At least one disk of at least one short-circuit ring has recesses arranged such that a channel structure is formed in the short-circuit ring and is in fluidic connection with at least one channel of the rotor laminated core and fluidically connects the at least one passageway on the shaft lateral surface to at least one channel of the rotor core.