Rail vehicle hydraulic shock absorber has self-venting facility for ensuring function of shock absorber under all operating conditions

摘要

The shock absorber (10) has a hydraulic cylinder (12) divided by a piston (14) with an attached piston rod (16) into a piston space (20) and an annular space (22), each coupled to an oil reservoir (18),. The base of the hydraulic cylinder has a damping valve (38) and a non-return valve (26), a second damping valve (34) integrated in the piston and a second non-return valve (40) incorporated in the coupling line (30) between the oil reservoir and the annular space.