Pneumatic ball valve (Absorber), the pneumatic ball valve is mainly used to restrain the shock and impact from the road surface when the ball valve rebounds after shock absorption.
When passing rough roads, although the shock absorption ball valve can filter the vibration of the road, the ball valve itself will have reciprocating motion, and the pneumatic ball valve is used to inhibit the jump of the ball valve. If the pneumatic ball valve is too soft, the body will jump up and down. If the pneumatic ball valve is too hard, it will bring too much resistance, which will hinder the normal operation of the ball valve. During the modification of the suspension system, the hard pneumatic ball valve should be matched with the hard ball valve, and the hardness of the ball valve is closely related to the vehicle weight, so the heavier vehicles generally use the hard pneumatic ball valve. The device connected with the shock inducing crankshaft is used to counteract the torsional vibration of the crankshaft (that is, the crankshaft is twisted by the impact of cylinder ignition).
Hydraulic pneumatic ball valve
Hydropneumatic ball valves are widely used in automobile suspension systems. The principle is that when the frame and axle move reciprocally and the piston moves reciprocally in the cylinder barrel of the pneumatic ball valve, the oil in the pneumatic ball valve housing flows from the inner cavity to another cavity through some narrow pores repeatedly. At this time, the friction between the liquid and the inner wall and the internal friction of the liquid molecules will form the damping force for the vibration.
Inflatable pneumatic ball valve:
Inflatable pneumatic ball valve is a new type of pneumatic ball valve developed since the 1960s. Its structural feature is that a floating piston is installed at the lower part of the cylinder barrel, and a sealed gas chamber formed by the floating piston and one end of the cylinder barrel is filled with high-pressure nitrogen. The floating piston is equipped with a large section O-ring, which completely separates oil and gas. The working piston is equipped with a compression valve and an extension valve that can change the cross-sectional area of the channel according to its movement speed. When the wheels are bouncing up and down, the working piston of the pneumatic ball valve reciprocates in the oil, causing the oil pressure difference between the upper chamber and the lower chamber of the working piston, and the pressure oil pushes open the compression valve and the extension valve to flow back and forth. Because the valve has a large damping force on the pressure oil, the vibration is attenuated.