The throttle is one of the most important elements of the intake systems of internal combustion gasoline engines. The throttle valve is necessary in order to regulate the amount of air that enters the engine for the formation of fuel-air mass.

Throttle valve is located in front of the intake manifold. The functioning concept of the throttle valve is very simple - the more the damper opens, the greater is the outlet cross section per unit time, respectively, more air goes through into the intake channel. More air means consequently, more fuel. The more fuel-air mixture there is in the combustion chamber, the higher power is generated.

The driver regulates the opening and closing of the throttle, every time he presses the gas pedal. The gas pedal is connected to the throttle. When the gas pedal is pressed, the throttle opens. The more pressing on the pedal, the more the throttle opens.