現在多數(shu)汽(qi)車都有回(hui)油(you)(you)(you)管,在燃(ran)油(you)(you)(you)泵供(gong)油(you)(you)(you)給發動機,形成一定(ding)壓力除了正常(chang)供(gong)給燃(ran)油(you)(you)(you)噴(pen)嘴噴(pen)油(you)(you)(you)后,剩余的燃(ran)油(you)(you)(you)通(tong)過回(hui)油(you)(you)(you)管路送(song)回(hui)到(dao)(dao)(dao)油(you)(you)(you)箱(xiang),當然還有碳(tan)罐收集的多余的汽(qi)油(you)(you)(you)蒸汽(qi)也通(tong)過回(hui)油(you)(you)(you)管回(hui)到(dao)(dao)(dao)油(you)(you)(you)箱(xiang)回(hui)油(you)(you)(you)管可以把多余的油(you)(you)(you)回(hui)到(dao)(dao)(dao)油(you)(you)(you)箱(xiang),可以起到(dao)(dao)(dao)排解(jie)汽(qi)油(you)(you)(you)的壓力,還可以減少油(you)(you)(you)耗。
汽車回油管作用:
1、就是讓(rang)多(duo)余的(de)油(you)(you)回流到油(you)(you)箱,減少油(you)(you)量的(de)消(xiao)耗。當燃油(you)(you)泵提供的(de)油(you)(you)大于發動機所需要(yao)的(de)最佳油(you)(you)量時,油(you)(you)會通過回油(you)(you)管回到油(you)(you)箱;
2、需要注意的是(shi),如(ru)果回油(you)管堵(du)塞,會造成油(you)壓過高(gao),導(dao)致怠速(su)過高(gao),燃燒不(bu)充分,動(dong)力不(bu)足。油(you)耗增大;
3、怠(dai)速狀態是指(zhi)發(fa)動(dong)機(ji)空轉時一(yi)種工(gong)作(zuo)狀況。在發(fa)動(dong)機(ji)運轉時,如果完全(quan)放松油門踏板,這(zhe)時發(fa)動(dong)機(ji)就(jiu)處于(yu)怠(dai)速狀態。調整(zheng)怠(dai)速時轉速不能突(tu)高突(tu)低,否則會對發(fa)動(dong)機(ji)造成早(zao)期磨(mo)損,最好到汽車維修部(bu)門進行調整(zheng)。
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