A10VSODFRDFR1原理

1、实用标准文档文案大全A10VSO DFR 原理1.23.4.初始状态 流量爾是关闭的.* Flow Control valve流量栓制阀Remote pressure control valve 遥控压力控制阀Differential pressure control. FR valve压差控制，FR阀Maximum pressure control, DR valve最高压力控制，DR阀Displacement contra I cylinder排量控制油缸Maximum displacement screw最髙排量限制Retun springvwirautn当泵口玉力上升至14 Bar 时

2、流量控制FR的屣芯移 位排量控制活塞令油泵徘量 变营近乎零油泵粧垦探持在便足够维 持油泵的变量压力wwwwixn-豈0.5.6.上.3.45.6.流量增加过程流量阀幵口度加大假设负裁圧力PL? 10 Bar在PL KE力帮助飞* FR的弹簧力令FR阀芯移往世注端液庄油風变量酒塞料曲油泵莹捋续增加节流阀耳入丘差由于排量會加 市上升，道至达到14 BarFR阀芯回到平衡位置，油泵排 量不再勧口，流量保持J如沱量國少过程谎量阀开口度减小节流阀出入口压羞左于幵口度变 小而上升超过bl BajrFR阀芯移位控制油流往变量活塞排量减少排量减少.丘羞也跟着减少*直 至压至减至14 BarFR阀

3、芯回到平衡位置，礎量保 持，不再改变wwwijwiirK陆4.6.远程丘力控制粮式流量阀左开启状态由于负載、压力上升至远程盗 流阀设走圧力远程爲洙擁开始谨泄2注泵出口压力上升至114Bar FR阀芯移位排童控割活塞今注泵排莹变电 近乎零注泵的排量减至胶足氐保持出压力及变星丘力A10VSODFR1用途广泛，并可让我们理解负荷传感之应用，值得和大家分享，但手上只有英文说明，无 论如何，总比没有好。1.起始状态：节流阀关闭，负荷为0,油泵以底压变为 0排量。底压不能变为 0,否则压力不足以油泵变量。Initial stateFlow Control valve is closed.Pressure

4、at pump outlet increase to 14 Bar and FR control spool shift position Displacement control cylinder change the flow to about zeroPump displacement maintain about zero flow for internal controlwwwjywn初始状遥流量控制阀关闭泉出斥力増至14bar 珂挖制滑阀茂变荷置排吊控制活塞改变流就至按近0泵的排莹维待零流呈供内 部控制2.节流阀开口度增大：节流阀开口度增大瞬问，压差下降，泵上之流量控制阀打开通住加

5、大流量之控制活 塞，流量加大；流量加大，压差加大，泵上之流量控制阀重新找到平衡点，流量不再加大。Flow Increasing stage Flow control vaJve open Loading pressure, PL e.g. 10 Bar is experienceUnder the force of FR spring and PLt spring side of FR valve is activeOil from displacement cyfirider return to tank, pump flow increase continuouslyDiffersntbl

6、 pressure Increase with pump displacement until tt become 14 BarFR valve close and pump flow is rramtajnedwwwwn.CN3.节流阀开口度减少：类似第 2点;流堡増m状态流量控制阀开启负载压力PLifll lObar在FR弹簧力和负载力V. FR 阀弹簧侧作用排量活塞的油返回至油箱，泵流 呈持续増加压差随泵排凰增加直至14bar1氓阀关闭，泵流虽维持www.iytyiihFlow decreasing stageThrottle valve decrease opening Differe

7、ntial pressure increase to more than 14 BarFR valve shift positionControl oil flow to displacement cylinder, flow decrease continuoustyDifferential pressure decrease with pump displacement until it become 14 BarFR valve close and pump flow is maintainedwwweyn.tN4.先导压力控制:流呈减少阶段流量阀幵度减小也羞超过14barFK阀改变位置

8、控制油进入拮虽汕辽，流量持 续减小随泵排量压差减小直至14barFR阀黄闭，泵流童维持www.iyeyiiNRemote pressure control stateFfo.v Control valve ts openedPressure built up due to resistant forceRemote pressure valve start to relief the pressurePump outlet increase to 114 Bar and FR control spoo shift positionDisplacement control cylinder ch

9、ange the flow to zeroPump pressure maintains with pilot flow for internal control5.最高限压:远程出力控制阶段流量控制阀开启由于阻抗力，压力建立远軒控制阀开启泄压泵出口熠至U4bai * FR控制滑 阀改变位置排量活塞改变流虽至0内部控制先导流莹泵压力 維持Maximum pressure protectionstateFlow Control valve is opened.Pressure built up due to resistant forcePump outlet increase to 175 Bar sind DR control spool shsft positionDisplacement control cylinder change the flow to about zeroPu