Pressure control valve having intrinsic feedback system

Details Pressure control valve having intrinsic feedback system Pressure control valve having intrinsic feedback system

2007-12-18

2007-12-18

Leslie, Michael (Department: 3745)

Motors: expansible chamber type

With motive fluid valve

Relatively movable inlet and exhaust valves for single...

C091S433000

Reexamination Certificate

active

11293413

ABSTRACT:
A method and system for controlling the dynamics of an actuatable load operable within a servo or servo-type system, wherein the dynamics of the load are controlled by way of a unique pressure control valve configured to provide intrinsic pressure regulation, thus eliminating the need for electronically or mechanically user controlled systems. The pressure control valve, which may be referred to as a dynamic pressure regulator, utilizes dual spools that are physically independent of one another and freely supported in the valve body to regulate the pressures acting within the overall system between the control or pilot pressure and the load or load pressure. The dual spools function in cooperation with one another to maintain a state of equilibrium in the system, namely to keep pressure acting on or within the actuator (the load pressure), or the feedback pressure corresponding to the load pressure, the same as the pilot pressure.

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