• K S Kharadi
• Mehul N Patel

Tribology is the science of interacting surfaces in relative motion. It includes the study and application of the principles of friction, lubrication and wear. It is a high time to develop fuel efficient and environmental friendly compact automobile engines. In this development, tribology is crucial as this development needs incremental specific loads, speeds, temperatures and surface roughness for majority of frictional components and needs better lubricants. This inevitably results in a decrease in the thickness of the oil film between the interacting surfaces of these components and increases the significance of the two surfaces' surface profiles and topography in influencing tribological performance. In internal combustion engine (ICE), majority of friction/wear occurs in bearings, piston pin, piston ring assembly (PRA), cam and follower, valve train, pumping losses etc. which are moving parts. From the literature, it is found that PRA contributes to 40-50% of total mechanical losses which accounts for 10-15% of total losses. Hence, it is tough to develop vehicles with greater efficiency, low fuel consumption and reduced environmental impact and that is where tribology comes into picture. Focusing on this, this work covers friction, lubrication and wears aspects encountered in the PRA of the ICE. Dry and Lubricated sliding wear behavior of grey cast iron piston ring has been studied using a TR-20-LE pin-on-disc apparatus at variety of load range and sliding velocity is used. For variety of crank angles, piston velocity, oil film thickness (OFT), hydrodynamic pressure and friction force, asperity contact pressure, contact load, asperity contact friction and total friction are achieved through theoretical analysis. On top of the same, parametric analysis is performed to analyze effect of engine speed, effect of lubricant viscosity, effect of ring tension, effect of surface roughness, and effect of ring width on friction force (FF) at different engine speeds and achieved results.

Tribology, Piston ring assembly, Friction Force, Wear, Friction Coefficient

"PARAMETRIC STUDY OF PISTON RING FOR A SINGLE CYLINDER CI ENGINE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 1, page no.691-704, January-2020, Available :http://www.jetir.org/papers/JETIR2001091.pdf

"PARAMETRIC STUDY OF PISTON RING FOR A SINGLE CYLINDER CI ENGINE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 1, page no. pp691-704, January-2020, Available at : http://www.jetir.org/papers/JETIR2001091.pdf