林阳阳,李锋,马承利,刘杰.零位间隙及温度变化对喷嘴挡板阀的影响[J].机床与液压,2016,44(1):99-103.
. The zero position specialty of double nozzle flapper valve is an important indicator to measure the valves static characteristic. The zero coefficient of valve was mainly associated with the zero clearance of nozzle flapper when the diameter of nozzle was definite, and the oil viscosity changing with temperature could also affect the performance of valve. The flow field inside the valve with different zero clearance of nozzle flapper was resolved under different initial temperature by FLUENT, in order to find the best one which could adapt to the large working temperature range through comparison with analysis. The result shows that enlarging the zero clearance appropriately can reduce the influence of the oil viscosity changing with temperature on the static characteristic of valve.[J]. Machine Tool & Hydraulics,2016,44(1):99-103