【導讀】 一(yi)、油(you)(you)(you)泵的作(zuo)(zuo)用(yong)(yong)　　油(you)(you)(you)泵的作(zuo)(zuo)用(yong)(yong)是根據柴油(you)(you)(you)機(ji)的工況，將適(shi)量的燃油(you)(you)(you)在適(shi)當的時間內以適(shi)當的形式噴(pen)(pen)入燃燒(shao)室，形成(cheng)適(shi)合于燃燒(shao)的混合氣，滿足(zu)柴油(you)(you)(you)機(ji)的性(xing)(xing)能要求。油(you)(you)(you)泵的作(zuo)(zuo)用(yong)(yong)可以概括為:(1)調(diao)節噴(pen)(pen)油(you)(you)(you)量:根據發動機(ji)的輸出功(gong)率將適(shi)量的燃油(you)(you)(you)穩(wen)定地噴(pen)(pen)入各氣缸;(2)調(diao)節噴(pen)(pen)油(you)(you)(you)始點:根據轉速、負(fu)荷控制噴(pen)(pen)油(you)(you)(you)始點，保證得到完善(shan)的燃燒(shao); (3)形成(cheng)噴(pen)(pen)霧:使(shi)燃油(you)(you)(you)霧化，且均勻分布到燃燒(shao)室空間。它們(men)決(jue)定著(zhu)柴油(you)(you)(you)機(ji)的性(xing)(xing)能，對柴油(you)(you)(you)機(ji)的動力性(xing)(xing)、經

相關標簽： 泵油泵

一、油泵的作用

　　油(you)(you)(you)(you)(you)泵的作(zuo)用(yong)是根據柴油(you)(you)(you)(you)(you)機(ji)的工況(kuang)，將適(shi)(shi)量(liang)(liang)的燃(ran)(ran)油(you)(you)(you)(you)(you)在適(shi)(shi)當(dang)的時間內以(yi)適(shi)(shi)當(dang)的形式噴(pen)(pen)(pen)入(ru)燃(ran)(ran)燒(shao)(shao)室，形成適(shi)(shi)合于(yu)燃(ran)(ran)燒(shao)(shao)的混合氣，滿足柴油(you)(you)(you)(you)(you)機(ji)的性(xing)能要(yao)求。油(you)(you)(you)(you)(you)泵的作(zuo)用(yong)可以(yi)概(gai)括為(wei):(1)調節(jie)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)量(liang)(liang):根據發動機(ji)的輸出(chu)功(gong)率將適(shi)(shi)量(liang)(liang)的燃(ran)(ran)油(you)(you)(you)(you)(you)穩定(ding)地(di)噴(pen)(pen)(pen)入(ru)各氣缸(gang);(2)調節(jie)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)始(shi)點:根據轉(zhuan)速、負荷控制噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)始(shi)點，保證(zheng)得到完(wan)善的燃(ran)(ran)燒(shao)(shao); (3)形成噴(pen)(pen)(pen)霧:使燃(ran)(ran)油(you)(you)(you)(you)(you)霧化，且均勻分(fen)布到燃(ran)(ran)燒(shao)(shao)室空間。它們(men)決定(ding)著(zhu)柴油(you)(you)(you)(you)(you)機(ji)的性(xing)能，對柴油(you)(you)(you)(you)(you)機(ji)的動力性(xing)、經濟(ji)性(xing)、排放(fang)、噪聲及可靠性(xing)、耐(nai)久性(xing)等都有(you)重要(yao)影響。

二(er)、油泵的組(zu)成及工作(zuo)原(yuan)理

　　油(you)(you)(you)(you)泵(beng)(beng)(beng)的(de)(de)基本工作(zuo)原理(li)及(ji)過程為:首先輸油(you)(you)(you)(you)泵(beng)(beng)(beng)從油(you)(you)(you)(you)箱中(zhong)吸取燃(ran)油(you)(you)(you)(you)，經燃(ran)油(you)(you)(you)(you)濾清器(qi)送入(ru)噴(pen)油(you)(you)(you)(you)泵(beng)(beng)(beng)的(de)(de)進油(you)(you)(you)(you)腔(qiang)，進入(ru)油(you)(you)(you)(you)腔(qiang)后(hou)的(de)(de)油(you)(you)(you)(you)通過進油(you)(you)(you)(you)孔被(bei)吸入(ru)杜塞(sai)(sai)腔(qiang)，由(you)齒(chi)輪軸推動柱塞(sai)(sai)上(shang)升，壓(ya)(ya)縮柱塞(sai)(sai)腔(qiang)中(zhong)的(de)(de)燃(ran)油(you)(you)(you)(you)使出油(you)(you)(you)(you)閥(fa)開(kai)啟(qi)，將燃(ran)油(you)(you)(you)(you)壓(ya)(ya)入(ru)高壓(ya)(ya)油(you)(you)(you)(you)管，柱塞(sai)(sai)的(de)(de)上(shang)升速(su)度很(hen)快(kuai)，所(suo)以油(you)(you)(you)(you)的(de)(de)壓(ya)(ya)力(li)很(hen)快(kuai)上(shang)升，壓(ya)(ya)力(li)以音(yin)速(su)從油(you)(you)(you)(you)泵(beng)(beng)(beng)端(duan)傳向噴(pen)油(you)(you)(you)(you)嘴(zui)。噴(pen)油(you)(you)(you)(you)嘴(zui)是(shi)個自動閥(fa)針閥(fa)被(bei)調壓(ya)(ya)彈簧(huang)(huang)的(de)(de)預緊力(li)壓(ya)(ya)緊在座(zuo)面(mian)上(shang)，當壓(ya)(ya)力(li)上(shang)升到大于調壓(ya)(ya)彈簧(huang)(huang)的(de)(de)預緊力(li)時針閥(fa)開(kai)啟(qi)，開(kai)始噴(pen)油(you)(you)(you)(you)。油(you)(you)(you)(you)泵(beng)(beng)(beng)是(shi)油(you)(you)(you)(you)泵(beng)(beng)(beng)系統的(de)(de)重要組(zu)成部分，而凸輪軸是(shi)油(you)(you)(you)(you)泵(beng)(beng)(beng)的(de)(de)關鍵部件(jian)。

　　油(you)泵系(xi)統除(chu)了為柴油(you)機提供燃油(you)之外(wai)，它還為保證汽車(che)能正(zheng)常運(yun)行而進行噴(pen)(pen)油(you)量(liang)調節(jie)。噴(pen)(pen)油(you)量(liang)的調節(jie)由調速器控(kong)制口安裝(zhuang)調速器則是由柴油(you)機工作的穩定(ding)性要(yao)求所決(jue)定(ding)的。