噴(pen)油(you)器(qi)(qi)修理包(bao)-噴(pen)油(you)器(qi)(qi)就是(shi)大家俗稱的噴(pen)油(you)嘴了(le),噴(pen)油(you)器(qi)(qi)是(shi)供油(you)系統(tong)中最重(zhong)要的部件,它實質是(shi)一個電磁閥。
噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)的作(zuo)用是(shi)按照發動機(ji)ECU計算(suan)出的噴(pen)(pen)(pen)(pen)(pen)射正時和脈寬,向進氣(qi)歧管或(huo)氣(qi)缸(gang)內噴(pen)(pen)(pen)(pen)(pen)射燃(ran)油(you)。噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)實(shi)際上是(shi)一個(ge)電(dian)(dian)磁(ci)閥(fa),ECU通(tong)過(guo)控制(zhi)其電(dian)(dian)磁(ci)閥(fa)線圈的電(dian)(dian)流通(tong)斷,來控制(zhi)噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)的工(gong)作(zuo)。噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)是(shi)維持發動機(ji)運轉(zhuan)的重要部件,由噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)體(ti)、噴(pen)(pen)(pen)(pen)(pen)油(you)嘴、支座(zuo)、彈簧等組成;由噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)供油(you)口(kou)泵進高(gao)壓(ya)油(you),噴(pen)(pen)(pen)(pen)(pen)油(you)器(qi)體(ti)內產生高(gao)壓(ya)作(zuo)用到噴(pen)(pen)(pen)(pen)(pen)油(you)嘴錐面上,當(dang)油(you)壓(ya)超過(guo)調定值時噴(pen)(pen)(pen)(pen)(pen)油(you)嘴閥(fa)芯開(kai)啟,高(gao)壓(ya)油(you)從(cong)噴(pen)(pen)(pen)(pen)(pen)嘴小(xiao)孔噴(pen)(pen)(pen)(pen)(pen)出,呈(cheng)霧狀到發動機(ji)缸(gang)筒(tong)里燃(ran)燒,使(shi)活塞往復運行。
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