poppet spring 提升阀弹簧
This timing is affected by the relationship among poppet weight, spring rate, poppet travel distance, plunger speed, and plunger diameter.
定时受提升阀重量，弹簧振频，提升阀阀程，活塞速度以及活塞直径的影响。
In this case a proportional solenoid is used to push a poppet against a seat via a spring.
在此比例电磁铁被用来推动一个锥阀芯通过一个弹簧压缩阀座。
As fluid is released the system pressure decreases until the spring force re-seats the poppet.
液体从系统中被排出时，系统压力降低，直到在弹簧压力作用下阀门回复原位。
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