PNEUMATIC SUSPENSION Russian patent published in 2008 - IPC B60G11/26 F16F5/00 

FIELD: transportation.

SUBSTANCE: pneumatic suspension comprises rubber-cord casing with cover forming work space, additional capacity located between them and baffle with valve unit. Valve unit includes cylinder installed along suspension axis, radial bypass holes, piston and rod fitted in cover. Valve unit is made in the form of damping unit self-regulating by amplitude and direction of vibrations. In valve unit body the cylinder with piston is installed forming circular cavity together with body. Circular cavity is connected with additional capacity space and with rubber-cord casing space via radial bypass holes closed by flexible elements attached to outer surface of body. Circular cavity is also connected with cylinder space via radial channels made in the centre part of cylinder at distance equal to piston height. Piston is connected with rod made as resilient core and forms together with cylinder the over-piston space communicating with rubber-cord casing space and under-piston space communicating with additional capacity space.

EFFECT: improvement of vehicle soft riding over roads of any types, operation reliability improvement, reduction of energy losses and suspension heating.

2 dwg