The structure of the booster (servo mechanism) used in automobiles is different, but the general principle is to use a small signal movement, with the help of compressed air, high-pressure oil and other control vehicles related devices to achieve the use of light.
According to the working principle of different, booster can be divided into hydraulic booster, vacuum booster and pressure booster and other forms.
Hydraulic Booster (hydraulic booster) is a servo mechanism which utilizes hydraulic action.
Vacuum Booster (Vacuum booster) is a servo mechanism which utilizes vacuum action (negative pressure).
The air pressure booster (air booster) is a servo mechanism that utilizes air pressure.