DEVICE OF PNEUMATIC SPRING WITH BUILT-IN DISTRIBUTING VALVE AND ROD-SHAPED DRIVE MEANS Russian patent published in 2017 - IPC B60G15/12 B60G11/27 B60G17/48 F16F9/04 F16F9/05 

FIELD: automotive engineering.

SUBSTANCE: pneumatic spring includes built-in device of distributing valve for loading pressure chamber (6) of air spring pressure. The device of distributing valve consists of one separate ventilation valve (8) and one separate deaeration valve (9) which are made for actuation by means of also built-in mechanical drive means. The ventilation valve (8) is arranged opposite the deaeration valve (9) with drive pushers facing each other (8 a, 8b) on the side of the outer pipe (1) or the discharge pipe (3). The mechanical drive means comprises a switching lever (10) of the balance bar, which at its one end acts on one guide surface (12) fixed on the discharge pipe (3) or the outer pipe (10) of the drive element (11) in order to act on the drive pushers (8a, 8b) at the other end for switching the distribution valve device.

EFFECT: providing reliable ventilation and deaeration of the spring delivery chamber in all positions of the stroke throughout entire service life of the spring.

13 cl, 5 dwg