柱塞向上供油，当上行到柱塞上的斜槽（停供边）与套筒上的回油孔相通时，泵 油室低压油路便与柱塞头部的中孔和径向孔及斜槽沟通，油压骤然下降，出油阀在弹 簧力的作用下迅速关闭，
PBDB-LWN FDBA-LAN RPGC-LQV ATOS阿托斯工程机械液压 ATOS阿托斯变速箱操纵阀 ATOS阿托斯伺服阀 ATOS阿托斯液控单向阀;CKGB-XCN CKIB-XCN CVEV-XCN CXAD-XAN CXBA-XAN CXBA-XBN CXDA-XAN CXFA-XAN CXFA-XCN CXJA-XCN FCCB-XAN FCDB-XAN FDBA-LAN LRHC-XHN NCFC-HAN NCGB-LCN NFCC-LCN PBHB-LAN PPDB-LAN RDDA-LAN RPCC-LANRPCC-LWN RPEC-FAN RPEC-LANRPEC-LNN CPOM3AAV RPEC-LQN CPOM3DDV RPEC-LWN CPOM4DDHTV RPGC-CWN CPOM6DDV RPGC-LAN RVCA-LAN SCEA-LA ATOS阿托斯转向控制阀 ATOS阿托斯常规阀Conventional Valves： ATOS阿托斯管式直动式溢流阀ARE, ATOS阿托斯管式先导式溢流阀ARAM, ATOS阿托斯板式先导溢流阀AGAM, ATOS阿托斯直动式顺序阀AGIP, ATOS阿托斯先导减压阀AGIR, ATOS阿托斯先导顺序阀AGIS, ATOS阿托斯先导卸压阀AGIU, ATOS阿托斯法兰安装先导溢流阀REM, ATOS阿托斯螺纹插装直动式溢流阀SP-CART, ATOS阿托斯流量控制阀QV-06,QV-10,QV-20,AQFR, ATOS阿托斯单向阀DB,DR,ADR,ADRL,AGRL,ARRLE ATOS阿托斯叠加阀Modular valves： ATOS阿托斯流量控制阀DHQ,DKQ, ATOS阿托斯压力控制阀HMP,HM,KM,HS,KS,HG,KG, ATOS阿托斯单向阀HR,KR,JPR-2,JPR-3 ATOS阿托斯换向阀 ATOS阿托斯板式电磁换向阀DHI,DHU,DHO,DKE， |
