Interacting fluid suspension and vehicles fitted with these suspensions

Claim 1

INTERACTING FLUID SUSPENSION OF ADJUSTABLE FLEXIBILITY FOR A WHEELED VEHICLE, COMPRISING A CYLINDER FIXED TO A VEHICLE CHASSIS, TWO PISTONS DIVIDING SAID CYLINDER INTO TWO LATERAL FLUID COMPRESSION CHAMBERS AND A CENTRAL FLUID COMPRESSION CHAMBER, TWO RODS PASSING THROUGH THE TWO ENDS OF THE CYLINDER AND CONNECTING EACH PISTON TO A WHEEL OF THE VEHICLE SO AS TO BALANCE ITS LOAD BY FLUID PRESSURE DIFFERENCE ON BOTH END FACES OF THE CORRESPONDING PISTON, A PRESSURE FLUID INLET CONDUIT COMMUNICATING WITH THE CENTRAL CHAMBER, A PAIR OF FLUID INLET CONDUITS CONNECTED IN THE LATERAL COMPRESSION CHAMBERS, MEANS FOR OPENING AND CLOSING SAID PAIR OF FLUID INLET CONDUITS CONTROLLED BY THE POSITIONS OF THE PISTONS IN THE CYLINDER, FLUID OUTLET CONDUITS IN THE LATERAL COMPRESSION CHMABERS, MEANS FOR OPENING AND CLOSING OF SAID OUTLET CONDUITS CONTROLLED BY THE POSITIONS OF THE PISTONS, EACH OF SAID PISTONS BEING AUTOMATICALLY RETURNED TO A MEDIAN POSITION OF EQUILIBRIUM DURING VEHICLE MOVEMENT TO RETAIN A SUBSTANTIALLY EQUAL DIFFERENCE OF PRESSURE ON ITS END FACES BY OPENING AND CLOSING OF SAID PAIR OF FLUID INLET AND SAID OUTLET CONDUITS CAUSED BY WHEEL ENGENDERED MOVEMENTS OF THE PISTONS, AND A VALVE ACTUABLE BY A VEHICLE OPERATOR AND LOCATED IN THE PRESSURE FLUID INLET CONDUIT OF THE CENTRAL CHAMBER ALLOWING MANUAL VARIATION OF THE FLUID PRESSURE IN THE CENTRAL CHAMBER FOLLOWED BY A SIMILAR PRESSURE VARIATION IN THE LATERAL FLUID COMPRESSION CHAMBERS WHICH RETURNS THE PISTONS TO THEIR MEDIAN POSITIONS OF EQUILIBRIUM, WHEREBY TO OBTAIN A VARIATION OF FLEXIBILITY OF THE SUSPEN SION.