Abstract
This article addresses the issue of friction and wear characteristics of diesel engine cylinder liner–piston ring combinations under different lubricating conditions using a pin-on-disc wear tribometer. The discs were made out of actual engine cylinder liner material using a casting process. Pins were made out of top compression ring material. The tests were conducted on a pin-on-disc tribometer for wear and friction characteristics of the cylinder liner and piston ring combination with diesel-contaminated rapeseed oil–based bio-lubricant, diesel-contaminated commercial synthetic lubrication oil (SAE 20W40), biodiesel-contaminated commercial synthetic lubrication oil (SAE 20W40), and used (150 h) commercial synthetic lubrication oil (SAE 20W40). Experimental results demonstrated that the rapeseed oil–based bio-lubricant and biodiesel-contaminated synthetic lubricant exhibited better performance in terms of wear, friction, and frictional force under similar operating conditions. Thus, usage of newly formulated bio-lubricant and biodiesel in the long run may have a positive impact on engine life.
ACKNOWLEDGEMENTS
The authors are grateful to the officials of Sri Chandra Sekharendra Saraswathi Viswa Mahavidyalaya University (Kanchipuram, Tamilnadu, India) for providing financial support of our research. The authors thank Ducom Instruments Pvt. Ltd. (Bangalore, India) for providing their testing facility and SGS Lab (Chennai, India) and Thaslim Tools & Metals (Chennai, India) for their technical support and great contribution to our work.
Review led by Gary Barber