Gas shock absorbers basically work on the same principle as hydraulic shock absorbers. The piston moves back and forth inside the oil filled tube. But at the bottom, a small chamber contains high pressure (about 25 bar = 312.5 PSI) nitrogen gas. A floating piston separates this gas and oil part from each other and prevents their mixing. In gas springs; The continuous pressure exerted on the oil by the gas prevents the piston governors from working silently and the oil from dogfing. The gas chamber here acts as the reserve pipe in the hydraulic shock absorbers. In other words, it increases the efficiency of the shock absorber by eliminating the changing volume of the shaft in the oil. With the closure of the damper, the volume increase of the damper shaft in the cylinder and the sudden loading can increase the gas pressure up to 120 bar.