High Quality Truck Parts and Accessories High Performance Suspension Shock Absorbers Air Springs for Mercedes 9428905419 9438900319

Working principle
When the vehicle is driving on an uneven road surface, the wheels are impacted by the bumps of the road surface, causing the air spring to be compressed or stretched and deformed. The air pressure inside the air spring changes accordingly, storing and releasing energy, playing a buffering role and reducing the impact of road impacts on the vehicle body.
At the same time, the piston in the shock absorber moves up and down with the deformation of the air spring. When the piston moves, the hydraulic oil flows through the valves and pores inside the shock absorber, generating damping force. This damping force cooperates with the elasticity of the air spring to suppress excessive vibration and rebound of the spring, so that the vibration of the vehicle body decays rapidly and the vehicle can drive smoothly.
The height control valve monitors the height change of the vehicle in real time and automatically adjusts the air pressure inside the air spring according to the preset height value. When the vehicle load increases and causes the vehicle body to drop, the height control valve will open and fill compressed air into the air spring to raise the vehicle body to the set height; on the contrary, when the load is reduced and the vehicle body rises, the height control valve will discharge some air to reduce the height of the vehicle body.