本文根据流体动量理论导出了阀芯关闭过程中液动力的关系式，在此基础上建立了二通插装阀阀芯关闭运动方程。
From fluid flow momentum theory the basic equation of flow dynamic forces in the spool closing process is derived, and the spool dynamic equation of the two-way cartridge valve is established.
本文采用滑阀系统图等效成插装阀系统图的方法，设计出一种由二通插装阀组成的典型闭式系统。
The paper USES spool valve system drawing equivalent to cartridge valve system drawing to design a typical hydraulic closed-circuit system consisting of two-way cartridge valve.
研究了插装阀在支架液压系统中的应用前景，设计了采用插装阀的某支撑式液压支架的液压系统，并分析了工作原理。
The application prospect of plus-in valve in hydraulic support was studied. A chock-type hydraulic support equipped plus-in valve was designed, and the working principle was analyzed.
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