VEHICLE SUSPENSION PNEUMOHYDRAULIC SPRING Russian patent published in 1997 - IPC

FIELD: transport engineering. SUBSTANCE: pneumohydraulic spring has working cylinder with cover provided with stop, piston with hollow rod installed in working cylinder to form pneumatic and hydraulic spaces and provided with bottom with channel, cup-type oil collector secured on rod bottom to enclose, through seal, working cylinder, pump installed in hollow rod and provided with body fixed on rod bottom and stepped plunger installed in body which divides body into plunger space communicating through channel in bottom with oil collector, and circular space. One one-sided cup is installed in pump body, and the other, on larger step of plunger. Compression spring is installed in plunger space. EFFECT: improved quality of suspension. 1 dwg