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开发一种拖拉机用零泄漏多路阀,解决目前国产液压输出阀中位密封均靠滑阀与阀道口的间隙密封,无法保证中位泄漏量的问题。该多路阀在不改变液压系统功能的前提下,在现有液压输出阀片中增加机械控制式单向阀,既保证了中位时液压输出阀片的零泄漏,又减少了液压系统的功率损失,提高了液压系统的可靠性。
The development of a tractor with zero leakage multi-way valve to solve the current domestic hydraulic output valve seat are closed by the gap between the spool and the valve seal can not guarantee the problem of the median leakage. The multi-way valve without changing the function of the hydraulic system under the premise of the existing hydraulic output valve to add mechanical control check valve, hydraulic outlet valve to ensure both the zero leakage and reduce the hydraulic system Power loss, improve the reliability of the hydraulic system.