Bearing arrangement, side channel compressor and fuel cell system

The bearing arrangement addresses grease contamination and assembly challenges by enabling post-assembly lubrication and continuous grease supply, enhancing the service life and reducing maintenance of side-channel compressors in mobile fuel cells.

DE102024135191A1Pending Publication Date: 2026-05-28ROBERT BOSCH GMBH
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Patent Information

Application Number
DE102024135191
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing bearing arrangements in side-channel compressors, particularly in mobile fuel cells, face challenges such as high bearing loads and rotational speeds leading to premature failure due to grease contamination and escape, difficulty in lubrication during assembly, and the need for frequent disassembly for grease replenishment.

Method used

A bearing arrangement design with a lubricant supply system that allows grease introduction after assembly, featuring grooves and bores for lubricant distribution, sealing elements to prevent leakage, and a compact design for continuous lubrication without disassembly, ensuring efficient lubrication and extended service life.

Benefits of technology

Prevents grease contamination during assembly, allows for fresh lubrication without disassembly, and extends the service life of bearings and the entire side-channel blower by maintaining consistent lubrication, reducing maintenance costs and failure probability.

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Abstract

Bearing arrangement (1), with a bearing pin (3) for rotationally fixed arrangement on a first housing part (8). The invention further relates to a side channel compressor (7) with a bearing arrangement (1) according to the invention and a fuel cell system (5) with a side channel compressor (7) and a bearing arrangement (1) according to the invention.
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Citation Information

Patent Citations

  • Side channel compressor for a fuel cell system, fuel cell system and the use of a side channel compressor

    DE102021201442A1

  • Side channel compressor for a fuel cell system for conveying and / or compressing a gaseous medium, fuel cell system

    DE102022212235A1

  • Side channel compressor and fuel cell system

    DE102022213718A1

  • rotation device

    DE60213727T2

  • Grease tool for repacking dual angular contact bearing with grease, and method of using same

    US20200284394A1