A Method for Estimating Fluid Force in Proportional Directional Control Valves with Spool

스풀형 비례 방향/유량제어밸브의 유체력 검증법

In establishing a simulation program for hydraulic valves, it is always a big obstacle to incorporate correctly flow forces on valve body into the simulation program. This paper suggests a method to estimate flow forces on spool in proportional directional/flow control valves with spool structure. Furthermore, suggests a way to obtain simulation program for spool valves, in which flow force mechanism is fully reflected.