4WRL25EZ350S-3X/G24Z4/M比例換向閥

4WRL25EZ350S-3X/G24Z4/M比例換向閥由上海韋米機電設備有限公司專業(yè)提供

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4WRL25EZ350S-3X/G24Z4/M比例換向閥

換向閥分類

(1)機動換向閥，機動換向閥又稱行程閥。

(2)電磁換向閥，電磁換向閥是利用電磁吸引力操縱閥芯換位的方向控制閥。

(3)電液換向閥，電液換向閥是由電磁換向閥和液動換向閥組成的復合閥。

(4)手動換向閥，手動換向閥是用手推杠桿操縱閥芯換位的方向控制閥。

 

優(yōu)點

動作準確、自動化程度高、工作穩(wěn)定可靠，但需附設驅(qū)動和冷卻系統(tǒng)，結(jié)構(gòu)較為復雜；閥瓣式結(jié)構(gòu)則較簡單，多用于流量較小的生產(chǎn)工藝上。

在石油、化工、礦山和冶金等行業(yè)中，六通換向閥是一種重要的流體換向設備。該閥安裝在稀油潤滑系統(tǒng)輸送潤滑油的管道中。通過變換密封組件在閥體中的相對位置，使閥體各通道連通或斷開，從而控制流體的換向和啟停。

 

換向閥是液壓系統(tǒng)中必不可少的方向控制閥，其合理選擇與應用是保證液壓系統(tǒng)正常工作的關(guān)鍵。

合理選用三位換向閥的中位機能

三位換向閥中位機能要與液控單向閥匹配

液控單向閥因其良好的單向密封性而廣泛應用于平衡、保壓、鎖緊等回路中，為了保證液控單向閥能夠良好地鎖定，一般采用H型或Y型中位機能的三位換向閥和液控單向閥配合使用。但現(xiàn)場上常出現(xiàn)0型或M型機能換向閥的情況，其鎖定性能當然不會很好。

選用卸荷式中位機能電液換向閥要考慮控制壓力的建立

電液換向閥由電磁換向閥和液動換向閥組成，其中電磁換向閥起先導作用，即用來改變液動換向閥控制壓力油的方向;液動換向閥作為主閥，其工作位置由電磁換向閥的工作位置相應確定。電液換向閥根據(jù)控制油和回油方式分為:內(nèi)控內(nèi)泄式、內(nèi)控外泄式、外控內(nèi)泄式、外控外泄式四種。對于外控式閥，由于控制油是從電液換向閥之外的油路單獨引入的，在使用時，無論內(nèi)泄還是外泄，均不存在什么問題。對以內(nèi)控方式供油的電液動換向閥，由于先導閥的供液口與主閥的P口是溝通的，若在中間位置是使泵卸荷的狀態(tài)，如M、H、K等中位機能，在中位時主油路不能為控制油路提供主閥芯換向所必須的控制壓力，因此不宜采取這種具有中位卸荷機能的內(nèi)控式電液換向閥。如果要采取這種形式，在應用時一定注意配以預控壓力閥，使在卸荷狀態(tài)仍然具有一定的控制油壓,足以操縱主閥芯換向，否則不能正常工作，即先導閥換向而主閥不能換向。

比例控制閥

采用比例電磁鐵(或力矩馬達)將輸入信號轉(zhuǎn)換成力或閥的機械位移，使閥的輸出(壓力、流量)也按照其輸入量連續(xù)、成比例地進行控制的閥。

大型鋼廠現(xiàn)場使用的比例閥主要有下表中的幾種:伺服比例控制閥、比例控制閥、電液比例控制閥，比例閥，伺服閥。

4WRL25EZ350S-3X/G24Z4/M比例換向閥

 功能、組成部分： 閥芯機能 E. 和 W.

4WRLE 型比例閥是一個帶電氣位置反饋和集成電子元件 (OBE)

的先導式比例方向控制閥。

裝配

閥的基本構(gòu)成包括 3 個主要組件：

? 先導控制閥 (1) 包含控制閥芯和套筒、復位彈簧、控制線圈

和感應式位置傳感器（可選配電子元件保護膜 (5) 和減振板

(4)）

? 帶對中彈簧和位置反饋的主閥 (2)

? 帶模擬量 (6) 或 IO-Link 接口的集成電子元件 (OBE) (3)

功能

當集成電子元件 (OBE) 處于被關(guān)閉或未激活的狀態(tài)時，先導控

制閥的控制閥芯在彈簧作用下處于 "故障安全" 位置。主閥的控

制閥芯位于其彈簧對中中心位置。

集成電子元件 (OBE) 將****控制值與主閥控制閥芯的位置實際

值進行比較。在有控制偏差的情況下，將激活控制線圈。由于磁

力發(fā)生改變，先導控制閥芯進行調(diào)節(jié)以抵住彈簧。

通過改變控制截面大小而產(chǎn)生的流量可以對主控制閥芯進行調(diào)

節(jié)。主控制閥芯的行程/控制截面與控制值成比例進行調(diào)節(jié)。

先導油可通過油口 P 從內(nèi)部供給先導控制閥，也可通過油口 X

從外部供給先導控制閥�？赏ㄟ^油口 T 從內(nèi)部實現(xiàn)到油箱的反

饋，也可以通過油口 Y 從外部實現(xiàn)。

控制線圈切斷

在以下故障情況下，集成電子元件 (OBE) 使控制線圈斷電，先

導控制閥芯將設置為 "故障安全" 位置，并將卸載主閥的先導油

腔。通過彈簧操作，主閥控制閥芯將移動至中心位置。

? 低于較小電源電壓

? 僅在當接口為 "F1" 時：

– 值低于較小電流控制值 2 mA（包括控制值線的電纜中斷

（電流環(huán)））。

? 僅當接口為 "L1" 時：

– 使能未激活，通訊中斷（看門狗）

– 內(nèi)部 IO-Link 發(fā)生故障時

? 僅當接口為 "C6" 時：

– 額外的，釋放未激活

減振板 "D"

減振板 (4) 降低集成電子元件上的加速振幅（頻率 >300 Hz）。

注意：

對于主要為低激勵頻率 (<300 Hz) 的應用，不建議使用減振

板。

4WRL25EZ350S-3X/G24Z4/M比例換向閥供應型號

力士樂REXROTH高響應換向閥，先導式

力士樂REXROTH三位四通高響應換向閥電氣位置反饋（LVDT的直流/直流）（結(jié)構(gòu)形式：耐震）4WRL...-750

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力士樂REXROTH三位四通的高響應換向閥、先導式、電氣位置反饋（LVDT的直流/直流±10V）4WRL.E(W)

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力士樂REXROTH高響應換向閥、先導式、集成的數(shù)字軸控制器（IAC多以太網(wǎng)）4WRLD -3X

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力士樂REXROTH三位四通高響應換向閥、先導式、電氣位置反饋和集成電子放大版（OBE）4WRLE

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R901404809 4WRLE25E1-400LJ-4X/MXY/24A1

R901396318 4WRLE25E400LJ-4X/MXY/24A1

R901400416 4WRLE25E400LJ-4X/MXY/24F1

R901404336 4WRLE25W6-350LJ-4X/MXY/24A1

R901407266 4WRLE25W6-350LJ-4X/MXY/24A1-971=KM

R901407272 4WRLE25W6-350LJ-4X/MXYWX/24A1-971=KM

R901404810 4WRLE25W8-350LJ-4X/MXY/24A1

R901404812 4WRLE27E1-600LJ-4X/MXY/24A1

R901396320 4WRLE27E600LJ-4X/MXY/24A1

R901400418 4WRLE27E600LJ-4X/MXY/24F1

R901432335 4WRLE27E600LJ-4X=MXT/24F1-834

R901404338 4WRLE27W6-430LJ-4X/MXY/24A1

R901404813 4WRLE27W8-430LJ-4X/MXY/24A1

R901439962 4WRLE35E1500LJ-4X/MXY/24A1-905

力士樂REXROTH三位四通高響應換向閥、先導式、電氣位置反饋和集成電子放大版（OBE）4WRLE.V

0811404688 4WRLE10V1-40P-3X/G24K0/A1M

R901217842 4WRLE10V1-55L-3X/G24ETK0/A1M

R901285149 4WRLE10V1-55L-3X/G24K0/F1M

R901156561 4WRLE10V1-55M-3X/G24EK0/A1M

R901276897 4WRLE10V1-55M-3X/G24EK0/A1V

0811404671 4WRLE10V1-55M-3X/G24K0/A1M

0811404689 4WRLE10V1-70P-3X/G24K0/A1M

R901335054 4WRLE10V1-85L-3X/G24EK0/A1M

R901217844 4WRLE10V1-85L-3X/G24ETK0/A1M

0811404397 4WRLE10V1-85M-3X/G24EK0/A1M

0811404676 4WRLE10V1-85M-3X/G24EK0/F1M

0811404673 4WRLE10V1-85M-3X/G24ETK0/A1M

0811404672 4WRLE10V1-85M-3X/G24K0/A1M

R901219315 4WRLE10V1-85M-3X/G24K0/F1M

R901421582 4WRLE10V1-85M-3X/G24TK0/A1M

R901401438 4WRLE10V100P-3X/G24K0/F1V-979

R901225019 4WRLE10V40P-3X/G24ETK0/A1M

0811404686 4WRLE10V40P-3X/G24K0/A1M

R901424653 4WRLE10V55L-3X/G24EK0/A1M

R901125218 4WRLE10V55L-3X/G24ETK0/A1M

R901275065 4WRLE10V55L-3X/G24ETK0/F1M

R901253009 4WRLE10V55L-3X/G24K0/A1M

R901439710 4WRLE10V55L-3X/G24K0/F1M

0811404661 4WRLE10V55M-3X/G24ETK0/A1M

0811404678 4WRLE10V55M-3X/G24ETK0/A1M-810

0811404657 4WRLE10V55M-3X/G24ETK0/A1V

R901444775 4WRLE10V55M-3X/G24ETK0/F1M

0811404652 4WRLE10V55M-3X/G24K0/A1M

0811404663 4WRLE10V55M-3X/G24K0/B5M

R901091344 4WRLE10V55M-3X/G24K0/F1M

R901348953 4WRLE10V55M-3X/G24K0/F1V

0811404659 4WRLE10V55M-3X/G24TK0/A1M

R901154526 4WRLE10V70P-3X/G24EK0/A1M

R901158977 4WRLE10V70P-3X/G24EK0/F1M

R901357568 4WRLE10V70P-3X/G24ETK0/A1M

R901422475 4WRLE10V70P-3X/G24ETK0/F1M

0811404687 4WRLE10V70P-3X/G24K0/A1M

R901208429 4WRLE10V70P-3X/G24K0/F1M

R901338129 4WRLE10V85L-3X/G24EK0/A1M

R901289817 4WRLE10V85L-3X/G24EK0/F1M

R901125217 4WRLE10V85L-3X/G24ETK0/A1M

R901292791 4WRLE10V85L-3X/G24ETK0/A1V

R901336506 4WRLE10V85L-3X/G24ETK0/F1M

R901290821 4WRLE10V85L-3X/G24K0/A1M

R901403219 4WRLE10V85L-3X/G24K0/F1M

R901341951 4WRLE10V85L-3X/G24TK0/A1M

R901364915 4WRLE10V85L-3X/G24TK0/A1M-303

R901083703 4WRLE10V85M-3X/G24EK0/A1M

0811404675 4WRLE10V85M-3X/G24EK0/F1M

0811404662 4WRLE10V85M-3X/G24ETK0/A1M

0811404683 4WRLE10V85M-3X/G24ETK0/A1M-810

R978714390 4WRLE10V85M-3X/G24ETK0/A1V

0811404681 4WRLE10V85M-3X/G24ETK0/F1M

R901231667 4WRLE10V85M-3X/G24ETK0/F1M-834

R901440504 4WRLE10V85M-3X/G24ETK0/F1WX00M-914

R901440505 4WRLE10V85M-3X/G24ETK0/F1WX08M-914

0811404653 4WRLE10V85M-3X/G24K0/A1M

0811404679 4WRLE10V85M-3X/G24K0/A1M-834

R901204818 4WRLE10V85M-3X/G24K0/A1V

0811404664 4WRLE10V85M-3X/G24K0/B5M

R901110878 4WRLE10V85M-3X/G24K0/F1M

0811404660 4WRLE10V85M-3X/G24TK0/A1M

0811404655 4WRLE10V85M-3X/G24TK0/B5M-766

R901325221 4WRLE10V85M-3X=G24K0/F1M-980

R901363305 4WRLE16V1-120L-3X/G24EK0/F1M

R901289166 4WRLE16V1-120L-3X/G24ETK0/A1M

R901403751 4WRLE16V1-120L-3X/G24ETK0/A1V

R901363329 4WRLE16V1-120L-3X/G24ETK0/F1M

R901363300 4WRLE16V1-120L-3X/G24K0/A1M

R901137425 4WRLE16V1-120L-3X/G24K0/F1M

R901266881 4WRLE16V1-120L-3X/G24TK0/A1M

R901212728 4WRLE16V1-120M-3X/G24EK0/A1M

0811404281 4WRLE16V1-120M-3X/G24ETK0/A1M

R901424054 4WRLE16V1-120M-3X/G24ETK0/A1V

0811404279 4WRLE16V1-120M-3X/G24K0/A1M

R901118991 4WRLE16V1-120M-3X/G24K0/F1M

R901094014 4WRLE16V1-120M-3X/G24TK0/A1M

R901222292 4WRLE16V1-150P-3X/G24EK0/A1M

R901211120 4WRLE16V1-150P-3X/G24EK0/F1M

0811404266 4WRLE16V1-150P-3X/G24K0/A1M

R901338820 4WRLE16V1-150P-3X/G24K0/F1M

R901302627 4WRLE16V1-200L-3X/G24EK0/A1M

R901387709 4WRLE16V1-200L-3X/G24EK0/F1M

R901406575 4WRLE16V1-200L-3X/G24EK0/F1V

R901324529 4WRLE16V1-200L-3X/G24ETK0/A1M

R901376684 4WRLE16V1-200L-3X/G24K0/A1M

R901438603 4WRLE16V1-200L-3X/G24K0/F1M

R901250273 4WRLE16V1-200M-3X/G24EK0/A1M

0811404282 4WRLE16V1-200M-3X/G24ETK0/A1M

R901403743 4WRLE16V1-200M-3X/G24ETK0/A1V

0811404280 4WRLE16V1-200M-3X/G24K0/A1M

R901191553 4WRLE16V1-200M-3X/G24K0/F1M

R901422473 4WRLE16V1-200M-3X/G24TK0/A1M

R901132613 4WRLE16V1-200M-3X/G24TK0/A1V

R901262590 4WRLE16V1-90P-3X/G24EK0/A1M

0811404265 4WRLE16V1-90P-3X/G24K0/A1M

R901128116 4WRLE16V120L-3X/G24ETK0/A1M

R901343003 4WRLE16V120L-3X/G24ETK0/F1M

R901125220 4WRLE16V120L-3X/G24K0/A1M

R901335383 4WRLE16V120L-3X/G24K0/A1V

R901369277 4WRLE16V120L-3X/G24K0/F1M

R901354930 4WRLE16V120L-3XG24EK0/A1M

R901136889 4WRLE16V120M-3X/G24EK0/A1M

R901386485 4WRLE16V120M-3X/G24EK0/F1M

R978714486 4WRLE16V120M-3X/G24ETK0/A1M

0811404285 4WRLE16V120M-3X/G24ETK0/A1M-857

R901199240 4WRLE16V120M-3X/G24ETK0/F1M-834

R901360765 4WRLE16V120M-3X/G24ETK0/F1WX00M-914

0811404250 4WRLE16V120M-3X/G24K0/A1M

R901190574 4WRLE16V120M-3X/G24K0/A1M-303

R901102640 4WRLE16V120M-3X/G24K0/A1V

0811404271 4WRLE16V120M-3X/G24K0/B5M-991

R901156270 4WRLE16V120M-3X/G24K0/F1M

R901132535 4WRLE16V120M-3X/G24TK0/A1V

R987209598 4WRLE16V150P-3X/G24EK0/A1M

R901168211 4WRLE16V150P-3X/G24EK0/F1M

R901105318 4WRLE16V150P-3X/G24ETK0/A1M

R901162989 4WRLE16V150P-3X/G24ETK0/F1M

0811404264 4WRLE16V150P-3X/G24K0/A1M

R901241364 4WRLE16V150P-3X/G24K0/F1M

R901427135 4WRLE16V200L-3X/G24EK0/A1M

R901128117 4WRLE16V200L-3X/G24ETK0/A1M

R901328405 4WRLE16V200L-3X/G24ETK0/F1M

R901125221 4WRLE16V200L-3X/G24K0/A1M

R901135270 4WRLE16V200L-3X/G24K0/F1M

R901378460 4WRLE16V200L-3X/G24K0/F1V

R901087984 4WRLE16V200M-3X/G24EK0/A1M

0811404284 4WRLE16V200M-3X/G24EK0/F1M

R901089293 4WRLE16V200M-3X/G24ETK0/A1M

0811404288 4WRLE16V200M-3X/G24ETK0/A1M-857

R978714397 4WRLE16V200M-3X/G24ETK0/A1V

0811404343 4WRLE16V200M-3X/G24ETK0/F1M

R901359853 4WRLE16V200M-3X/G24ETK0/F1M-834

0811404251 4WRLE16V200M-3X/G24K0/A1M

0811404287 4WRLE16V200M-3X/G24K0/A1M-834

0811404346 4WRLE16V200M-3X/G24K0/A1M-857

R901199725 4WRLE16V200M-3X/G24K0/A1V

0811404269 4WRLE16V200M-3X/G24K0/B5M

0811404272 4WRLE16V200M-3X/G24K0/F1M

R901114932 4WRLE16V200M-3X/G24K0/F1M-834

R901302584 4WRLE16V200M-3X/G24K0/F1V

R978714415 4WRLE16V200M-3X/G24TK0/A1M

R901241644 4WRLE16V200M-3X/G24TK0/F1M

R901274432 4WRLE16V200M-3X/G24TK0/F1M-834

R901366946 4WRLE16V200P-3X/G24K0/F1V-979

R901134551 4WRLE16V250M-3X/G24EK0/A1M-913

0811404334 4WRLE16V250M-3X/G24K0/A1M

R901145186 4WRLE16V90P-3X/G24ETK0/A1M

0811404263 4WRLE16V90P-3X/G24K0/A1M

R901301533 4WRLE16V90P-3X/G24K0/F1M

R901442926 4WRLE16V90P-3X/G24TK0/F1M

R901263605 4WRLE25V1-300P-3X/G24EK0/A1M

R901240355 4WRLE25V1-300P-3X/G24EK0/F1M

R901330884 4WRLE25V1-300P-3X/G24ETK0/F1M

R901371564 4WRLE25V1-300P-3X/G24K0/A1M

R901338788 4WRLE25V1-300P-3X/G24K0/F1M

R901362469 4WRLE25V1-370L-3X/G24EK0/A1M

R901354690 4WRLE25V1-370L-3X/G24ETK0/A1M

R901370611 4WRLE25V1-370L-3X/G24K0/A1M

R901285142 4WRLE25V1-370L-3X/G24K0/F1M

R901292816 4WRLE25V1-370M-3X/G24EK0/A1M

0811404444 4WRLE25V1-370M-3X/G24K0/A1M

R901129870 4WRLE25V1-370M-3X/G24K0/F1M

R901140507 4WRLE25V1-370M-3X/G24TK0/F1M

0811404569 4WRLE25V250M-3X/G24K0/A1M

R901197837 4WRLE25V300P-3X/G24EK0/A1M

R901119407 4WRLE25V300P-3X/G24ETK0/A1M

R901411774 4WRLE25V300P-3X/G24ETK0/F1M

R901119406 4WRLE25V300P-3X/G24K0/A1M

R901358294 4WRLE25V300P-3X/G24K0/F1M

R901354055 4WRLE25V370L-3X/G24EK0/A1M

R901292609 4WRLE25V370L-3X/G24ETK0/A1M

R901403841 4WRLE25V370L-3X/G24ETK0/F1M

R901194490 4WRLE25V370L-3X/G24K0/A1M

R901314144 4WRLE25V370L-3X/G24K0/F1M

R901410218 4WRLE25V370L-3X/G24K0/F1M-834

R901289465 4WRLE25V370L-3X/G24TK0/A1M

R901087982 4WRLE25V370M-3X/G24EK0/A1M

0811404570 4WRLE25V370M-3X/G24EK0/F1M

0811404498 4WRLE25V370M-3X/G24ETK0/A1M

R901118992 4WRLE25V370M-3X/G24ETK0/F1M

R901432501 4WRLE25V370M-3X/G24ETK0/F1M-834

0811404430 4WRLE25V370M-3X/G24K0/A1M

R901190572 4WRLE25V370M-3X/G24K0/A1M-303

0811404497 4WRLE25V370M-3X/G24K0/A1M-834

R901358451 4WRLE25V370M-3X/G24K0/A1V

R901131728 4WRLE25V370M-3X/G24K0/B5M

0811404573 4WRLE25V370M-3X/G24K0/F1M

R901114933 4WRLE25V370M-3X/G24K0/F1M-834

R901204701 4WRLE25V370M-3X/G24TK0/A1M

R901316854 4WRLE25V370M-3X/G24TK0/F1M

R901350388 4WRLE25V370M-3X/G24TK0/F1M-834

R901366947 4WRLE25V370P-3X/G24K0/F1V-979

R901250268 4WRLE27V1-430M-3X/G24K0/A1M

0811404574 4WRLE27V1-430M-3X/G24K0/F1M

R901131871 4WRLE27V430L-3X/G24EK0/A1M

R901192020 4WRLE27V430L-3X/G24K0/A1M

R901330844 4WRLE27V430L-3X/G24K0/F1M

0811404891 4WRLE27V430M-3X/G24EK0/A1M

R901307877 4WRLE27V430M-3X/G24ETK0/A1V

0811404432 4WRLE27V430M-3X/G24K0/A1M

R901316602 4WRLE27V430M-3X/G24K0/F1M

R901295217 4WRLE27V430P-3X/G24EK0/F1WX00V-934

R901386400 4WRLE27V430P-3X/G24K0/F1V-979

R901126909 4WRLE27V550P-3X/G24EK0/A1M-911

R901369324 4WRLE35V1-1000L-3X/G24K0/F1M

0811404582 4WRLE35V1-1000M-3X/G24EK0/F1M

R901136890 4WRLE35V1-1000M-3X/G24K0/F1M

R901228063 4WRLE35V1-1000M-3X/G24K0/F1M-834

R901330471 4WRLE35V1000L-3X/G24ETK0/A1M

R901439711 4WRLE35V1000L-3X/G24K0/A1M

R901408368 4WRLE35V1000L-3X/G24K0/F1M

R901137986 4WRLE35V1000M-3X/G24EK0/A1M

R901114370 4WRLE35V1000M-3X/G24EK0/A1M-866

R901111711 4WRLE35V1000M-3X/G24EK0/F1M

R901135570 4WRLE35V1000M-3X/G24ETK0/A1M

R901307871 4WRLE35V1000M-3X/G24ETK0/A1V

R901161642 4WRLE35V1000M-3X/G24ETK0/F1M

R901230344 4WRLE35V1000M-3X/G24ETK0/F1M-834

R901441083 4WRLE35V1000M-3X/G24ETK0/F1WX00M-914

R901440541 4WRLE35V1000M-3X/G24ETK0/F1WX08M-914

0811404579 4WRLE35V1000M-3X/G24K0/A1M

0811404583 4WRLE35V1000M-3X/G24K0/A1M-834

R901428415 4WRLE35V1000M-3X/G24K0/A1M-967

R901440993 4WRLE35V1000M-3X/G24K0/A1WG02M

R901203014 4WRLE35V1000M-3X/G24K0/F1M

R901235851 4WRLE35V1000M-3X/G24K0/F1M-834

R901132666 4WRLE35V1000M-3X/G24K0/F1WX00M-914

R901137987 4WRLE35V1000M-3X/G24TK0/A1M

R901318162 4WRLE35V1000P-3X/G24K0/F1M-979

R901381396 4WRLE35V1000P-3X/G24K0/F1V-979

R901148862 4WRLE35V800P-3X/G24ETK0/F1M

比例閥的工作原理如下：在不制動時,活塞在感載彈簧通過杠桿施加的推力F的作用下,處 于左端較限位置,這時閥門離開閥座打開,使輸入輸出油路相通。當開始制動時,來自助力器的壓力為P1的制動液由進油口進入,并通過閥門從出油口輸至后制動管路.此時輸出液壓P,等于輸入液壓P1當制動踏板力加大時,P1和P2同步加大。但由于活塞左側(cè)承壓面積大于右側(cè),致使活塞左側(cè)受到的力也大于右側(cè).