气垫阀的气垫作用主要表现在气阀开启时阀片撞击速度的减小。在下面的分析中,主要考查各因素在阀片开启时对撞击速度的影响,至于对气阀关闭时的气垫作用,可在选择弹簧力时考虑。对全气垫结构的气垫阀,忽略各种泄漏,不计阀腔压力脉动,以排气阀力例,其运动微分方程组为 Cushion air cushion valve role is mainly manifested in the valve opening valve to reduce the impact speed. In the following analysis, the main test of the various factors in the valve opening impact on the speed, as the air valve when the closure of the role of the air cushion can be considered in the choice of spring force. For the air cushion valve structure, ignoring a variety of leaks, regardless of pressure fluctuations in the valve chamber to exhaust valve force cases, the differential equations of motion