Patent ID: 6394238
Filing Date: 2002-05-28
Classification: B60G,F16F,Y10S

Abstract:
A hydraulic circuit for controlling a suspension of a vehicle having a cylinder with a piston that defines a piston chamber and a rod chamber within the cylinder, said hydraulic circuit comprising:a first node; a second node connected to the piston chamber; a first control valve having an inlet for connection to a pump supply line of the vehicle and having an outlet coupled to the first node; a control valve assembly connecting the first node to a tank return line of the vehicle; an accumulator coupled to the first node; a first check valve coupling the first node to the second node, wherein fluid can flow through the first check valve only in a direction from the first node to the second node; a first orifice connected in parallel with the first check valve; a second check valve coupling the piston chamber to the rod chamber, wherein fluid can flow through the second check valve only in a direction from the piston chamber to the rod chamber; and a second orifice connected in parallel with the second check valve.