SMC VBA系列增壓閥介紹，SMC增壓閥

出口壓力反饋至調(diào)壓閥，可以使出口壓力自動(dòng)保持在某一值。當(dāng)需要改變出口壓力時(shí)，可調(diào)節(jié)手輪，便能得到在增壓比范圍內(nèi)的任意設(shè)定出口壓力。若出口反饋壓力與調(diào)壓閥的彈簧力相平衡，增壓閥就停止運(yùn)轉(zhuǎn)，不再輸出流量?！驹敿?xì)說明】SMC
VBA系列增壓閥介紹，SMC增壓閥
SMC VBA系列增壓閥結(jié)構(gòu)原理
下圖分別是是SMC VBA系列增壓閥結(jié)構(gòu)原理圖和VBA系列內(nèi)部結(jié)構(gòu)圖。
輸入的氣壓分兩路，一路打開單向閥充入小氣缸的增壓室A和B，另一路經(jīng)調(diào)壓閥及換向閥向大氣缸的驅(qū)動(dòng)室B充氣，驅(qū)動(dòng)室A排氣。這樣，大活塞左移，帶動(dòng)小活塞也左移，小氣缸B室增壓，打開單向閥從出口送出高壓氣體。小活塞走到頭，使換向閥切換，則驅(qū)動(dòng)室A進(jìn)氣，驅(qū)動(dòng)室B排氣，大活塞反向運(yùn)動(dòng)，增壓室A增壓，打開單向閥，繼續(xù)從輸出口送出高壓氣體。以上動(dòng)作反復(fù)僅需，便可從出口得到連續(xù)輸出的高壓氣體。出口壓力反饋至調(diào)壓閥，可以使出口壓力自動(dòng)保持在某一值。當(dāng)需要改變出口壓力時(shí)，可調(diào)節(jié)手輪，便能得到在增壓比范圍內(nèi)的任意設(shè)定出口壓力。若出口反饋壓力與調(diào)壓閥的彈簧力相平衡，增壓閥就停止運(yùn)轉(zhuǎn)，不再輸出流量。
 

SMC VBA系列增壓閥介紹，SMC增壓閥

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