HYDRAULIC DEVICE TO IMPROVE STABILITY OF VEHICLE Russian patent published in 2005 - IPC

FIELD: road and rail transport.

SUBSTANCE: proposed device is installed between load platform and running gear of vehicle and it includes reversible hydraulic cylinders, spool plunger chamber and distributing chamber. Load platform is secured on running gear through support articulated joints found on longitudinal axle and on end faces of running gear. Housing of reversible hydraulic cylinders are hinge-secured at angle to horizontal p-lane symmetrically to axle on running gear, and rods are secured symmetrically to edges of base of load platform. Control signal is generated at appearance of pressure differential in upper and lower spaces of hydraulic cylinders in pipelines connecting spaces to distributing chamber. Two-side acting valve balanced by calibrated springs and providing redistribution of liquid flows getting into chamber of spool plunger is arranged in chamber. Plunger shifts through length proportional to difference of pressures acting onto its end face surfaces and it closes or opens holes of main lines exposed to pressure built by pump and those draining liquid into tank.

EFFECT: improved stability of vehicle and reliability of device.

2 dwg