A parametric study on oil film pressure measurements in a single piston-ring configuration

Author:

Dellis Polychronis1,Arcoumanis Constantine2

Affiliation:

1. Technical Services Department, Cultural Organisation of the City of Athens, Greece

2. School of Engineering and Mathematical Science, City University London, UK

Abstract

Oil film pressure, the driving force behind piston-ring lubrication phenomena, is measured in a single piston-ring simulating rig after the successful installation of a miniature pressure transducer. The partition of overall load-carrying capacity between direct surface interaction and hydrodynamic action is clearly of some significance if the characteristics of the piston seal are to be understood and predicted with any confidence. It is therefore important that the contribution of the fluid film lubrication to load support be adequately represented. This study presents an extensive load, speed, temperature and piston-ring curvature parametric study on how the measured pressure profile at mid-stroke is affected in terms of peak pressure, magnitude and shift in the trailing edge of the piston ring, taking into account cavitation appearance and lubricant viscosity variation.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Automotive Engineering

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