What is the Composition and Function of the Crank Connecting Rod Mechanism?

[StSophia]

The crank connecting rod mechanism is primarily composed of five parts: the cylinder block, piston rings, connecting rod, crankshaft, and flywheel. Its function is to provide a space for the engine's combustion, allowing the gas produced after fuel combustion to act on the expansion pressure at the top of the piston, which is then converted into the rotational torque of the crankshaft, continuously outputting power to enable the rotation of the car's wheels. There are three types of crank connecting rod mechanisms: double crank, double rocker, and crank rocker. A component that can perform circular motion is called a crank, while one that can only swing within a range of less than 360 degrees is called a rocker. A double crank mechanism involves one crank driving another crank to rotate, and a double rocker mechanism involves one rocker driving another rocker to swing.