Numerous studies have demonstrated that the phenomenon of frictional loss within an internal combustion (IC) engine holds paramount significance in the determination of both fuel efficiency and overall performance characteristics exhibited by a given vehicle. The experimental evaluation of the transient friction and running-in behavior characteristics of aluminum nanoparticles-based piston ring is conducted utilizing a specially designed engine testing device. The findings are presented for an order of experiments conducted on rings using various combinations of disparate materials. This study presents a comparative analysis of three distinct materials utilized in the manufacturing of piston rings. The utilization of a hemispherical piston in conjunction with aluminum nanoparticles-based piston ring exhibits superior performance compared to alternative combinations.

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