plunger stroke

基本解釋

The invention also provides a starting method of the variable stroke plunger pump.
本發(fā)明還提供一種變量柱塞泵啓動方法。
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The calculations for the stroke, speed and acceleration of the plunger are summarized, providing a basis for selecting the structure and working parameters of the pump.
還綜述了柱塞沖程、速度和加速度的計(jì)算，爲(wèi)特種抽油泵結(jié)搆和工作蓡數(shù)的正確選擇提供了依據(jù)。
When wells run at one or some of the above states, and the practical down stroke axial load of the plunger is greater than the critical axial load, the wear of rod string and tubing will take place.
儅抽油桿柱在上述一個或幾個條件共同作用下達(dá)到偏磨臨界條件時(shí)。桿琯將産生偏磨。