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:
Aug. 25, 2026
Filed:
Oct. 22, 2021
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Xin Li, Shanghai, CN;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A transmission mechanism having a cooling flow path, including a shaft assembly, an inner cylinder, a first sealing ring, and a second sealing ring. The first sealing ring is located in a gap between one axial end portion of the inner cylinder and the shaft assembly, and the second sealing ring is located in a gap between the other axial end portion of the inner cylinder and the shaft assembly, so that a cooling medium entering from the inlet of the shaft assembly can flow through a central hole, a communication hole, an intermediate space, and a discharge hole, and then is discharged to the outside of the shaft assembly. Therefore, interference fit does not need to be performed between the two axial end portions of the inner cylinder and the shaft assembly, and the cooling flow path can be realized in the transmission mechanism, thereby reducing the machining precision of a corresponding component, and being further capable of simplifying an assembling process and shortening the assembling duration. Further, provided is an e-axle driving system comprising the transmission mechanism.