Patent · US Expired

Sintered plain bearing for engines and gears

US6540404B1 · kind B1 · utility

2Cited by

5References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gerd Dornhoefer · Leonberg, DE
Hans-Peter Koch · Stuttgart, DE
Andreas Vogt · Eitorf, DE
Thomas Broghammer · Schenkenzell, DE
Guido Kurz · Barcelona, ES
Werner Stehr · Horb am Neckar, DE

Key dates

Filing date	Nov 15, 2000
Grant date	Apr 1, 2003
Priority date	—
Expiry date	Nov 15, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S384/902
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A sintered plain bearing for motors and gear drives, having a running surface formed by a bearing bore and capable of having lubricant applied to it from lubricant reservoirs in the bearing, in which the bearing bore has, alternatingly distributed over the circumference, high-compaction small-pore running surfaces and axially extending low-compaction open-pore lubricant reservoirs. Lubrication is improved, especially in the initial phases of operation, by the fact that the lubricant reservoirs are constituted by channel structures having at least two longitudinal channels, and that at least in some of the channel structures, some of the channel crests remaining between adjacent longitudinal channels are in contact with the shaft received by the bearing bore in order to transfer lubricant.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.