In view of this, a variable pitch valve spring is designed to eliminate the axial shifting and radial drifting of the valvedisk and improve the service life of the valve.
鉴于此，笔者试图设计泵阀的变螺距弹簧，以消除阀盘的纵向振谐窜动和径向失稳漂移，提高泵阀工作寿命。
2
A type of quick-opening valve whose orifice is opened and closed by a disk that pivots on a shaft in the throat of the valve.
一种快开式阀门，其孔口的开启和关闭靠装在阀门颈部枢轴上的圆盘。
3
A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.