Operation Principle Of Double Acting Cylinder Type Shock Absorber

2023-08-24 14:21:20

When the stroke is compressed, the car wheel moves closer to the body, and the shock absorber is compressed, and the piston moves down in the shock absorber. The volume of the lower chamber of the piston decreases and the oil pressure rises, and the fluid flows through the valve to the chamber above the piston (the upper chamber). The upper chamber occupied a part of the space by the piston rod, so the volume increased on the upper cavity was smaller than that in the lower cavity. A part of the oil was pushed away and the compression valve was pushed back to the storage tank. These valves save the oil and form the damping force of the suspension compression motion. 

When the shock absorber is extended, the wheel is far away from the body, and the shock absorber is stretched. The piston of the shock absorber moves upwards at this time. The oil pressure of the upper chamber of the piston rises, the circulation valve is closed, and the oil liquid in the upper chamber opens the extension valve into the lower chamber. As the piston rod, since the cavity flow of the oil is not enough to fill a cavity increased volume, the inferior vena generates a vacuum, then the oil in the oil cylinder push valve 7 into the vena supplement. Because of the throttle effect of these valves, the suspension is damped when the suspension moves.

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