現在多數汽(qi)車(che)都有回(hui)油(you)(you)(you)(you)管,在燃(ran)油(you)(you)(you)(you)泵供油(you)(you)(you)(you)給(gei)發動機(ji),形成(cheng)一(yi)定壓力(li)除了正常供給(gei)燃(ran)油(you)(you)(you)(you)噴(pen)嘴噴(pen)油(you)(you)(you)(you)后,剩(sheng)余的燃(ran)油(you)(you)(you)(you)通過回(hui)油(you)(you)(you)(you)管路(lu)送回(hui)到油(you)(you)(you)(you)箱,當然還有碳罐收集的多余的汽(qi)油(you)(you)(you)(you)蒸汽(qi)也通過回(hui)油(you)(you)(you)(you)管回(hui)到油(you)(you)(you)(you)箱回(hui)油(you)(you)(you)(you)管可以把(ba)多余的油(you)(you)(you)(you)回(hui)到油(you)(you)(you)(you)箱,可以起到排解汽(qi)油(you)(you)(you)(you)的壓力(li),還可以減少油(you)(you)(you)(you)耗。
汽車(che)回油管作用(yong):
1、就(jiu)是(shi)讓多余的油(you)(you)回流到油(you)(you)箱,減少油(you)(you)量的消耗。當(dang)燃油(you)(you)泵提(ti)供(gong)的油(you)(you)大于發(fa)動(dong)機(ji)所(suo)需要的最佳(jia)油(you)(you)量時,油(you)(you)會通(tong)過(guo)回油(you)(you)管(guan)回到油(you)(you)箱;
2、需要注意的是,如果回油管(guan)堵塞,會造成油壓過(guo)高,導致怠速過(guo)高,燃(ran)燒(shao)不充分,動(dong)力不足。油耗增大;
3、怠(dai)速狀(zhuang)態(tai)是指發(fa)動機空轉(zhuan)(zhuan)時(shi)一種工作狀(zhuang)況(kuang)。在發(fa)動機運轉(zhuan)(zhuan)時(shi),如果(guo)完全(quan)放松(song)油門(men)踏(ta)板,這(zhe)時(shi)發(fa)動機就處于怠(dai)速狀(zhuang)態(tai)。調整怠(dai)速時(shi)轉(zhuan)(zhuan)速不能(neng)突高突低(di),否則(ze)會(hui)對發(fa)動機造成(cheng)早(zao)期磨損,最(zui)好到汽(qi)車維修部門(men)進行(xing)調整。
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