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. 31, 2024
Filed:
Oct. 11, 2021
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Benjamin Krank, Munich, DE;
Matthias Lepschi, Munich, DE;
Maximilian Rosenberger, Munich, DE;
Thomas Spiess, Munich, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A shaft bearing point has a radial shaft bearing in which a drive shaft is rotatably supported relative to a machine housing. The radial shaft bearing is arranged directly or indirectly in a machine housing wall separating a lubricant space from a lubricant-free space. The radial shaft bearing has a lubricant side facing the lubricant space, and a seal side facing away from the lubricant space, in the axial direction, and a radial shaft seal is provided which is arranged at an axial distance to the seal side such that a lubricant chamber is produced between the seal side and the radial shaft seal ring in the axial direction. The lubricant chamber is equipped with a chamber separating wall. The chamber separating wall separates the lubricant chamber into a storage chamber, which is arranged between the seal side and the chamber separating wall, and a seal chamber, which is arranged between the chamber separating wall and the radial shaft seal ring. The storage chamber and the seal chamber are fluidically connected together via a separating wall throttle. The separating wall throttle has an annular gap as a fluid-conducting connection between the two chambers. The annular gap is formed between the chamber separating wall and the drive shaft and has a permeable height, which is greater than 0.1 mm and less than 3 mm, in the radial direction.