Shaft bearing point and shaft bearing

US12180999B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Benjamin KRANK · Munich, DE
• Matthias LEPSCHI · Munich, DE
• Maximilian ROSENBERGER · Munich, DE
• Thomas Spiess · Munich, DE

Key dates

• Filing date: Oct 11, 2021
• Grant date: Dec 31, 2024
• Expiry date: Jan 6, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2380/26
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

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 form…