先导阀前腔串加阻尼孔的新型双级溢流阀特性
訚耀保1, 原佳阳1, 傅俊勇2

Characteristics of two-stage relief valve with series damping orifice in the front chamber of pilot valve
YIN Yao-bao1, YUAN Jia-yang1, FU Jun-yong2
双级溢流阀框图