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:
Mar. 17, 2026
Filed:
Apr. 08, 2022
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A rotor device for an electric machine, comprising: a rotor which comprises a rotor laminated core having a plurality of pole legs which project radially from a central axis of the rotor and can be wrapped around by respective rotor windings; at least one cooling fluid line, which extends in the circumferential direction between adjacent pole legs with its longitudinal extension direction parallel to the central axis of the rotor, and which is designed for a cooling fluid to flow through it for cooling of the rotor; and at least one collecting ring, which is provided on an end face of the rotor and is designed to collect cooling fluid flowing along the end face and to supply it to the at least one cooling fluid line.