The Design and Analysis of Journal Bearings used in Scroll Compressors
Date Issued
2006
Date
2006
Author(s)
Lai, Yu-Xiang
DOI
zh-TW
Abstract
This paper presents the characteristics of journal bearings used in scroll compressors. There are several elements of oil supply system in scroll compressors including oil gallery, lower journal bearing, main journal bearing, upper journal bearing and thrust bearing. A numerical scheme was carried out to estimate the lubrication performance of these journal bearings. The pressure and temperature distributions were obtained by solving the coupled Reynolds and energy equations simultaneously using finite difference methods. The thermal effect of variable viscosity was also considered in the numerical scheme. Eventually, the characteristics of these journal bearings such as load capacity, attitude angle, and oil flow rate are presented in the forms of figures and charts, which are expected to be useful for engineering design.
Subjects
渦卷式壓縮機
軸頸軸承
有線差分法
雷諾方程式
能量方程式
scroll compressor
journal bearing
finite difference method
thermal effect
Type
thesis
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