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:
Apr. 08, 2025
Filed:
Feb. 06, 2023
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Peter Rentfrow, Doylestown, OH (US);
Eric Ubelhart, Orrville, OH (US);
Charles Clark, Clinton, OH (US);
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
An induction motor rotor shaft assembly may include an induction motor rotor shaft rotatable about a center axis, the induction motor rotor shaft including a hollow cylindrical base including an outer circumferential surface, an inner circumferential surface, a first axial end and a second axial end. The induction motor rotor shaft can include a helical structure extending about the center axis on or in the inner circumferential surface. The induction motor rotor shaft assembly may include a coolant supply for providing coolant inside of the hollow cylindrical base onto the helical structure for flow axially inside the hollow cylindrical base along the helical structure as the induction motor rotor shaft rotates about the center axis.