Prediction of Oil Film Thickness in Piston Ring - Cylinder Assembly in an I C Engine: A Review

I C engines are the largest energy converting units for the mobile application across the globe and millions of litres of oil is converted into mechanical energy using these engines every day. It has been recognized that a large amount of energy is lost in the friction between Piston ring – Cylinder assembly. Hence this area has been the interest of research for decades. Oil film thickness formed between the piston ring and the liner has a major impact on reduction of power loss due to friction. A micro review on prediction of Oil Film Thickness in piston ring-cylinder assembly has been presented in order to have an over view of the research going on in this area. An attempt has been made to incorporate the research work of leading researchers and to focus light on the major parameters affecting OFT and their impact on the OFT. This review may be helpful for new upcoming researchers to identify the areas for future research.