When the car engine starts operating, it receives a certain amount of fuel and air, compresses and burning the mixture and thus also allows it to expand before it is expelled from the cylinder.
When this car engine cycle is done in a piston that makes the movement four times, two up and two down, the car engine gets its name four times our company. On the other hand, when the piston makes only one cycle up and down, the drive motor receives motor name two times.
During the intake process called the car engine receives an amount of air and fuel that will directly stop within the cylinder. When this process occurs, the inlet valve is always open, but the exhaust valve is always closed.