The operating principle of a car engine is mainly to convert chemical energy into mechanical energy.
The reason why the engine has sufficient power is that the kinetic energy generated by the combustion of the fuel in the cylinder causes the piston in the engine cylinder to reciprocate. This is also a work cycle process.
The power of the engine is due to the fact that the piston in the engine cylinder moves back and forth while driving the connecting rod on the piston and the crank connected to the connecting rod to burn. The center of the crankshaft continues to move back and forth in a circular motion. movement to produce power.