➤ Piston Design and Combustion Dynamics • Role of the Piston in an Internal Combustion Engine The piston is the primary moving component inside the engine cylinder that converts combustion pressure into mechanical motion. It transfers the force generated by burning fuel–air mixture to the connecting rod, which then rotates the crankshaft. Piston design directly influences engine efficiency, power output, emissions, durability, and noise characteristics. ➤ Basic Piston Design Structure ⤷ Piston C