Hydraulic shock absorber for damping displacement of suspension in e.g. all-terrain competition car, has identical rings formed with holes having different calibrated sections, where each hole is formed opposite outlet of hydraulic chamber

摘要

The absorber (1) has a movable element i.e. rod (6), displaced in a cylindrical fluid body (2). A cylindrical hydraulic stroke end stop (20) is arranged in the body, and has a hydraulic chamber provided with an axially sliding piston (22) that dampens a stroke end of the element. A series of identical rings surrounds the chamber in an adjustable manner, and is formed with holes having different calibrated sections, where each hole is formed opposite an outlet of the chamber. A stroke limiting unit i.e. axial groove, of the piston prevents complete discharge of the piston from the chamber.