AIR SUSPENSION DEVICE WITH INTEGRATED CONTROL VALVE Russian patent published in 2017 - IPC B60G17/48 B60G17/52 B60G11/27 

FIELD: transportation.

SUBSTANCE: air suspension contains one integrated control valve (1) for supplying compressed air to the air cavity (5) formed between an outer tube (2), a guide tube (3) and a bellow valve (4) connecting them. The control valve (1) with several switching positions can be adjusted by means of an integrated mechanical control element, depending on the height of the air suspension relative to the preset level of the vehicle. The air cavity (5) comprises a compression spring (8) on the end surface located between the upper part (6) of the outer tube (2) and the lower part (7) of the outer tube (2). A lever (9) mechanically connected to the integrated control valve (1) is configured to be actuated by the control protrusion (10) located on the end surface of the tube lower part (7). A stepped characteristic of the supply and/or discharge of air in the air cavity (5) is realized, and in order to activate the lever (9), the control protrusion (10) partially enters the guide tube (3).

EFFECT: accuracy of activation and realisation of a stepped characteristic of the supply and discharge of air in the air cavity are achieved.

9 cl, 3 dwg