A Study of Oil Flow and Temperature in Journal Bearings

910160

02/01/1991

Event
International Congress & Exposition
Authors Abstract
Content
With the recent trend toward increased unit load in engine bearings, problems due to lack of lubrication frequently arise, especially in crankpin bearings. We have previously investigated the influence of shaft and bearing design on the oil flow using the connecting rod in actual use under alternating loads.
In this paper, we investigate the critical value of oil flow at which the Fbearing temperature rises rapidly and the influence of connecting rod rigidity on the oil flow. As a result of these tests, it was discovered that the increase in bearing temperature (ΔTj) is in inverse proportion to oil flow (Qj),tests resulting in a single curve expressed by ΔTj = E1/Qj + E2, that the critical oil flow (Qc) varies according to Qc = Const. • E1, and that connecting rod rigidity greatly influences the oil flow (specifically, the greater the rigidity, the less oil).
Meta TagsDetails
DOI
https://doi.org/10.4271/910160
Pages
10
Citation
Hashizume, K., and Kumada, Y., "A Study of Oil Flow and Temperature in Journal Bearings," SAE Technical Paper 910160, 1991, https://doi.org/10.4271/910160.
Additional Details
Publisher
Published
Feb 1, 1991
Product Code
910160
Content Type
Technical Paper
Language
English