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This paper taking a Marine gearbox wet friction clutch hydraulic control system as the main research object . Based on ANSYS established pressure regulating valve inside passage fluid dynamics finite element calculation model, in different flow and import oil temperature respectively under pressure regulating valve in different flow when the latter flow field numerical calculation, get pressure regulating valve inside passage oil temperature, flow and hydraulic valve core, the relationship between the latter; In Marine gearbox comprehensive performance test on the selection of test gear box for pressure regulating valve in different valve core under the latter of different flow rate and different import oil temperature of hydraulic characteristics more sets of test research. Through The test and simulation data contrast, The results show that The data indicates that they are in good agreement, verified The rationality of The numerical calculation method of large secondary pressure regulating valve flow field simulation, oil pressure test and pressure regulating valve port structure improvement provides certain reference.

(60)Flow Analysis and Experiment of Pressure-regulating Valve Used in Wet Friction Clutch