SMC VBA系列增壓閥介紹，SMC增壓閥

出口壓力反饋至調壓閥，可以使出口壓力自動保持在某一值。當需要改變出口壓力時，可調節(jié)手輪，便能得到在增壓比范圍內的任意設定出口壓力。若出口反饋壓力與調壓閥的彈簧力相平衡，增壓閥就停止運轉，不再輸出流量?！驹敿氄f明】SMC
VBA系列增壓閥介紹，SMC增壓閥
SMC VBA系列增壓閥結構原理
下圖分別是是SMC VBA系列增壓閥結構原理圖和VBA系列內部結構圖。
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，另一路經調壓閥及換向閥向大氣缸的驅動室B充氣，驅動室A排氣。這樣，大活塞左移，帶動小活塞也左移，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，則驅動室A進氣，驅動室B排氣，大活塞反向運動，增壓室A增壓，打開單向閥，繼續(xù)從輸出口送出高壓氣體。以上動作反復僅需，便可從出口得到連續(xù)輸出的高壓氣體。出口壓力反饋至調壓閥，可以使出口壓力自動保持在某一值。當需要改變出口壓力時，可調節(jié)手輪，便能得到在增壓比范圍內的任意設定出口壓力。若出口反饋壓力與調壓閥的彈簧力相平衡，增壓閥就停止運轉，不再輸出流量。
 

SMC VBA系列增壓閥介紹，SMC增壓閥

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