Patent ID: 7475895

Claim:
A hydraulic system for use in a motorized vehicle comprising: a pressure source; a valve fluidly coupled to the pressure source; and an actuator fluidly coupled to the valve and including an outer casing and a piston slidably received in the outer casing such that the piston defines a piston chamber and a rod chamber in the outer casing, the actuator including a rod coupled to the piston on a side of the piston facing the rod chamber, wherein the valve is configured such that when the valve is in an open position the valve provides fluid communication to the rod chamber and provides fluid communication to the piston chamber, wherein fluid flowing through the valve to the rod chamber passes through a restricted orifice having cross sectional area that is smaller than the cross sectional area of any orifice that would be passed through by fluid flowing through the valve to the piston chamber, wherein the valve includes a piston chamber port and a rod chamber port, and wherein the valve is configured such that when the valve is in the open position the pressure source is in fluid communication with the piston chamber via the piston chamber port and the valve provides fluid communication with the rod chamber via the rod chamber port, wherein when the rod chamber port has a smaller cross sectional area than the piston chamber port to provide said restricted orifice.