This book include elementary study of Piston-Ring lubrication in Hydrodynamics (HL) and Elasto-Hydrodynamic (EHL) domain at low load-low speed operating conditions. Effects of Piston-Ring running face profile, Engine speed and Elliptically distorted bore are investigated. Vogelpohl parameter technique along with Finite Difference Method is used to solve steady state Reynolds equation for Compression ring of a gasoline engine. Performance parameters (Oil Film thickness in HL and EHL, Friction Force, Power Loss and Flow-rate of lubricating oil) are shown graphically and explained.

About the Author

Ali Usman is Lecturer in Mechanical Engineering Department of HITEC University Taxila, Pakistan. He worked in Tribology research group for two years and presently he is pursuing his doctoral degree in the field of blade optimization of micro-Hydro turbines from National University of Science and Technology (NUST), College of EME Pakistan.

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