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:
Jun. 23, 2026
Filed:
Jul. 17, 2024
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Christopher Chapanar, Massillon, OH (US);
Kyle Nelson, Delaware, OH (US);
Antonio Eduardo Mogro Zambrano, Puebla, MX;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A drive unit for an electric vehicle including a gearbox having rotating components supported in a gearbox portion of the housing, an oil circuit in fluid communication with the gearbox portion of the housing for circulating oil in response to dynamic pressure generated by the rotating components of the gearbox when in operation, and a bleed passage connecting the oil circuit to the gearbox portion of the housing. Dynamic pressure in the gearbox portion of the housing generated by the rotating components when in operation restricts flow of oil through the bleed passage from the oil circuit to the gearbox portion of the housing, and static pressure in the gearbox portion of the housing when the gearbox is not in operation permits flow of oil from the oil circuit to the gearbox portion of the housing.