What is the function of the crank connecting rod mechanism?

[OIan]

The functions of the crank connecting rod mechanism are: 1. Convert gas pressure into crankshaft torque; 2. Transform the reciprocating motion of the piston into the rotational motion of the crankshaft; 3. Convert the force exerted by combustion on the piston crown into crankshaft torque to output mechanical energy to working machinery. The crank connecting rod mechanism is the main moving mechanism of an engine, composed of components such as the piston group, connecting rod group, crankshaft, and flywheel group. The role of the piston is to form the combustion chamber together with the cylinder head and cylinder wall, withstand the gas pressure in the cylinder, and transmit the force to the connecting rod through the piston pin to drive the crankshaft to rotate. The function of the connecting rod is to transmit the force borne by the piston to the crankshaft and convert the reciprocating motion of the piston into the rotational motion of the crankshaft.