Theoretical Analysis on the profile of slider in reciprocating compressor has been presented based on the hydrodynamic lubrication. Theoretical Analysis calculates fluid film pressure, attitude angle, frictional force, and minimum film thickness in normal condition for comparing two different profiles of slider. The calculated results show that the profile of slider plays an important role in the determination of the lubrication characteristics and the barrel type profile is more efficient from the viewpoint of lubrication.
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