Research on the relief valve with G-π bridge pilot hydraulic resistances network

摘要

This paper offered the idea of the relief valve with G-π bridge hydraulic resistances pilot circuit. Its static and dynamic characteristics were studied by theoretical analysis, digital simulation and experiment. The formula for designing the relief valve with G-π bridge hydraulic resistances pilot circuit was deduced, The theoretical analysis, digital simulation and experiment showed that the relief valve studied in this paper presents three kinds of pressure flow performances, i.e. when the overflow increases the control pressure increases, keeps constant and drops in terms of hydraulic resistance parameters of the pilot network.