Patent ID: 6644335
Filing Date: 2003-11-11
Classification: F15B,Y10T

Abstract:
A method of dampening a pressure flow between a pilot operated control valve connected with a control device and a resolver in a fluid control system having a supply of hydraulic fluid capable of being pressurized, comprising the step of:locating a first orificing device having a plurality of steps therein directly in the hydraulic fluid flow between the pilot operated control valve and the resolver; locating a second orificing device having a plurality of steps therein directly in the hydraulic fluid flow between a second pilot operated control valve and the resolver; moving the control device in a first direction to control a first function with the first pilot operated control valve and moving the control device in a second direction to control a second function different than the first function with the second pilot operated control valve; and varying the size or shape of the respective plurality of steps to change the dampening effect on the pressure flow between the first and second pilot operated control valves and the resolver to dampen the flow of pressurized hydraulic fluid through the first and second orificing devices and obtain independent control for the functions of the first and second pilot operated control valves.