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:
Dec. 02, 2025
Filed:
Jul. 30, 2021
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Christian Gilde, Karlsruhe, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A rotor of a dynamoelectric radial flux machine and a dynamoelectric machine having such a rotor are provided. In order to design the rotor to be as efficient and cost-effective as possible, it includes a laminated rotor core with individual laminations stacked axially one above the other. Axially extending and circumferentially distributed cooling ducts and substantially radially extending inflow ducts are arranged within the laminated rotor core. The individual laminations have the same lamination cross-section, the laminated rotor core is formed in a staggered manner from laminated core sub-units that are rotated relative to one another, and each individual lamination includes cooling-duct holes and inflow-duct holes. The inflow-duct holes in the individual laminations of a first laminated core sub-unit axially overlap with the cooling-duct holes in the individual laminations of the remaining laminated core sub-units for forming the axially extending cooling ducts.