QMF-20P-A電(dian)磁脈沖閥就是控(kong)制油(you)路(lu)(lu)中油(you)壓的(de)大小。一般安裝在主油(you)路(lu)(lu)或減振器背壓油(you)路(lu)(lu)中,以減少(shao)換(huan)檔和鎖(suo)止解(jie)鎖(suo)時的(de)油(you)壓沖擊(ji),使(shi)設(she)備運行保持平穩狀(zhuang)態。
QMF-20P-A電磁脈沖閥的工作原理:
QMF-20P-A電(dian)(dian)磁(ci)(ci)脈(mo)沖(chong)閥(fa)膜片(pian)把(ba)電(dian)(dian)磁(ci)(ci)脈(mo)沖(chong)閥(fa)分成前、后(hou)二(er)個氣(qi)(qi)室(shi)(shi)(shi),當接通(tong)(tong)壓(ya)(ya)縮空氣(qi)(qi)通(tong)(tong)過節流孔進(jin)入后(hou)氣(qi)(qi)室(shi)(shi)(shi),此時后(hou)氣(qi)(qi)室(shi)(shi)(shi)壓(ya)(ya)力將(jiang)膜片(pian)緊貼閥(fa)的輸出口(kou),電(dian)(dian)磁(ci)(ci)脈(mo)沖(chong)閥(fa)處于(yu)“關閉(bi)”狀態。脈(mo)沖(chong)噴吹控制儀電(dian)(dian)信號(hao)消失,電(dian)(dian)磁(ci)(ci)脈(mo)沖(chong)閥(fa)銜鐵復位,后(hou)氣(qi)(qi)室(shi)(shi)(shi)放(fang)氣(qi)(qi)孔關閉(bi),后(hou)氣(qi)(qi)室(shi)(shi)(shi)壓(ya)(ya)力升高使膜片(pian)緊貼閥(fa)出口(kou),電(dian)(dian)磁(ci)(ci)脈(mo)沖(chong)閥(fa)又處于(yu)“關閉(bi)”狀態。
電磁脈沖閥(fa)按閥(fa)進出口的(de)角度及(ji)進氣口的(de)形式可分為三種:
a) 直(zhi)角式電(dian)磁脈沖閥(fa)(fa):閥(fa)(fa)體進出口成(cheng)直(zhi)角,直(zhi)接受(shou)電(dian)信號(hao)控制的膜片閥(fa)(fa);
b) 直(zhi)通式電磁脈沖閥:閥體進(jin)出口成180度,直(zhi)接受電信(xin)號控制的膜片閥;
c) 淹沒(mei)式(shi)電(dian)磁(ci)脈(mo)沖閥:閥體進(jin)氣(qi)口淹沒(mei)在(zai)氣(qi)包內,直接(jie)受(shou)電(dian)信號控(kong)制的膜片閥。
除了常規三種電磁閥外還有一種旋噴(pen)吹用大口徑(jing)超低壓電磁脈沖閥。