泵阀是泵和阀门的统称。 非用于泵的阀门或具有泵作用的阀门。 泵和阀常常联系在一起的原因是使用场合。就是说有泵的地方一般都有阀门，有的地方往往需要泵。他们都用于液体输送的地方。当然，阀门还用于气体。真空泵也与气体有关。
n. pump valve
2DS(Y)—106型电动往复泵毕业设计_论文 关键词：电动往复泵；泵阀；活塞；设计 [gap=1072]Key word ：Electrically operated reciprocating pump；Pump valve；Piston；design
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The existing problems on original kinematical analysis, on definition of Valve-Unseal-Delay angle, and on definition of Valve-Delay-Height of reciprocating pump valve were pointed out, also the analyses were made to find out the reasons.
指出了往复泵阀运动规律推导过程及定义阀开启滞后角、滞后升高存在的问题．分析了产生问题的原因。
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这两类方法得到的结果均说明泵阀运动存在滞后现象。
Both methods demonstrate some delay lag occurring in pump valve movement.
修正后的公式可以比较准确地反映泵阀的实际工作情况。
The modified formula represents much more accurately the actual working condition of the pump valve.
对泵阀工作时的各种载荷进行了分析，建立了相应的力学模型。
Based on the analysis on all kinds of load while the pump valve is working, we establish the corresponding mechanical model.
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