挖掘（excavate)機電噴發動機的類(lei)型是什(shen)么(me)？
　　本文有挖掘機維護修理(li)廠供稿
　　3種典型的(de)(de)先進柔性(xing)(xing)(Flexible)高壓(ya)噴(pen)油(you)系統的(de)(de)原理,分別是(shi)Bosch公司的(de)(de)增壓(ya)活塞共軌系統(APCRS系統)、皮勒(le)公司的(de)(de)HEUI-CRD系統及Delphi公司的(de)(de)E3-EUI系統.這幾(ji)個系統具有下列共同(tong)的(de)(de)特性(xing)(xing)。
　　①在結構(gou)上都(dou)采(cai)用了兩個(ge)控(kong)制電(dian)磁(ci)閥(magnet valve ),一(yi)個(ge)用于(yu)噴油壓(ya)力(li)的控(kong)制PCV,另一(yi)個(ge)用于(yu)噴油時刻和噴油量的控(kong)制SCV。
　　②都具有超過2000bar(lbar=lOs Pa)的噴油壓力(li),并(bing)具有達到2400bar噴油壓力(li)的潛力(li)（指(zhi)個人能力(li)發(fa)展(zhan)的可(ke)能性(xing))。
　　③具有實現多次噴射(she)的能力。
　　④與共(gong)軌噴(pen)油(you)系統(system)相比(bi),噴(pen)油(you)壓力控(kong)(kong)制（control)的(de)(de)瞬(shun)態(tai)響應很快,在發(fa)出(chu)控(kong)(kong)制指令的(de)(de)下一個循環(huan)就可以實現對噴(pen)油(you)壓力的(de)(de)控(kong)(kong)制,因而(er)避免了傳(chuan)統共(gong)軌系統中(zhong)變(bian)工況時因油(you)軌壓力滯后產生的(de)(de)油(you)量控(kong)(kong)制偏差(cha)和轉速的(de)(de)瞬(shun)時波(bo)動。
　　⑤通過兩個控制電磁閥(magnet valve )的(de)配合可以(yi)實現噴射速率的(de)柔性(Flexible)調節。挖掘機修理挖掘機(ji)維修動作(zuo)緩慢、熱(re)機(ji)無力、高溫、憋車、動作(zuo)不協調(diao)、液壓泵(beng)、閥電腦檢測、挖掘機(ji)修理(li)發動機(ji)燒機(ji)油、下排氣(qi)大、整機(ji)大修等故(gu)障維修。
　　是(shi)高壓共軌(gui)系(xi)(xi)統(tong)(system)組成(cheng),圖(tu)1-7是(shi)高壓共軌(gui)系(xi)(xi)統(tong)控(kong)制(zhi)（control)系(xi)(xi)統(tong)組成(cheng)和控(kong)制(zhi)功能。
　　是(shi)Bosch公司(Company)的(de)(de)(de)(de)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)(piston)共軌(gui)系(xi)(xi)統(system)(APCRS系(xi)(xi)統)的(de)(de)(de)(de)原(yuan)理(li)(li).燃(ran)(ran)油(you)(you)(you)(you)(you)經加壓(ya)(ya)(ya)后進入(ru)油(you)(you)(you)(you)(you)軌(gui),然后經高壓(ya)(ya)(ya)管進入(ru)各(ge)缸的(de)(de)(de)(de)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器.燃(ran)(ran)油(you)(you)(you)(you)(you)在(zai)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器內分(fen)為兩路:一路進入(ru)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)上(shang)(shang)部(bu)(bu)的(de)(de)(de)(de)油(you)(you)(you)(you)(you)腔(qiang)(qiang)（oil recess）并經節(jie)(jie)流孔(kong)進入(ru)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)內部(bu)(bu),后經噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)閥(fa)(fa)(fa)(Control valve)PCV流回油(you)(you)(you)(you)(you)箱;另一路經單向閥(fa)(fa)(fa)進入(ru)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)小頭的(de)(de)(de)(de)油(you)(you)(you)(you)(you)腔(qiang)(qiang)、針(zhen)(zhen)閥(fa)(fa)(fa)壓(ya)(ya)(ya)力(li)(li)室,并經節(jie)(jie)流孔(kong)進入(ru)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)上(shang)(shang)部(bu)(bu)的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)油(you)(you)(you)(you)(you)腔(qiang)(qiang)內.由(you)于(yu)(yu)(yu)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)的(de)(de)(de)(de)增壓(ya)(ya)(ya)作(zuo)(zuo)用,被單向閥(fa)(fa)(fa)隔離的(de)(de)(de)(de)部(bu)(bu)分(fen)燃(ran)(ran)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)升高,使噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)可以(yi)達到2000bar以(yi)上(shang)(shang),由(you)于(yu)(yu)(yu)高壓(ya)(ya)(ya)部(bu)(bu)分(fen)位(wei)于(yu)(yu)(yu)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器內,所(suo)(suo)(suo)以(yi)提高了系(xi)(xi)統的(de)(de)(de)(de)可靠性(xing).噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)是(shi)通(tong)過(tōng guò)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)閥(fa)(fa)(fa)PCV實現(xian)的(de)(de)(de)(de),改變(bian)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)信號就可以(yi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)大頭上(shang)(shang)、下(xia)油(you)(you)(you)(you)(you)腔(qiang)(qiang)的(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)差(cha)大小,從而(er)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)作(zuo)(zuo)用在(zai)增壓(ya)(ya)(ya)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)小頭油(you)(you)(you)(you)(you)腔(qiang)(qiang)內燃(ran)(ran)油(you)(you)(you)(you)(you)上(shang)(shang)的(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li),使針(zhen)(zhen)閥(fa)(fa)(fa)壓(ya)(ya)(ya)力(li)(li)室內的(de)(de)(de)(de)噴(pen)(pen)(pen)射(she)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)發生改變(bian).噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)閥(fa)(fa)(fa)SCV的(de)(de)(de)(de)工(gong)作(zuo)(zuo)原(yuan)理(li)(li)與(yu)普通(tong)的(de)(de)(de)(de)共軌(gui)系(xi)(xi)統的(de)(de)(de)(de)高速(su)電磁閥(fa)(fa)(fa)(magnet valve )的(de)(de)(de)(de)工(gong)作(zuo)(zuo)原(yuan)理(li)(li)相同(tong),即當(dang)SCV閥(fa)(fa)(fa)斷(duan)電時,由(you)于(yu)(yu)(yu)燃(ran)(ran)油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)力(li)(li)產生的(de)(de)(de)(de)作(zuo)(zuo)用于(yu)(yu)(yu)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)上(shang)(shang)部(bu)(bu)的(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)大于(yu)(yu)(yu)作(zuo)(zuo)用于(yu)(yu)(yu)針(zhen)(zhen)閥(fa)(fa)(fa)承壓(ya)(ya)(ya)面上(shang)(shang)的(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li),所(suo)(suo)(suo)以(yi)噴(pen)(pen)(pen)油(you)(you)(you)(you)(you)器不噴(pen)(pen)(pen)油(you)(you)(you)(you)(you);當(dang)SCV通(tong)電時,由(you)于(yu)(yu)(yu)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)上(shang)(shang)部(bu)(bu)油(you)(you)(you)(you)(you)腔(qiang)(qiang)進油(you)(you)(you)(you)(you)節(jie)(jie)流孔(kong)小于(yu)(yu)(yu)出(chu)油(you)(you)(you)(you)(you)節(jie)(jie)流孔(kong),所(suo)(suo)(suo)以(yi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)上(shang)(shang)部(bu)(bu)油(you)(you)(you)(you)(you)腔(qiang)(qiang)內油(you)(you)(you)(you)(you)壓(ya)(ya)(ya)降低,控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)活(huo)(huo)(huo)(huo)(huo)(huo)塞(sai)(sai)上(shang)(shang)部(bu)(bu)的(de)(de)(de)(de)壓(ya)(ya)(ya)力(li)(li)迅速(su)減小,針(zhen)(zhen)閥(fa)(fa)(fa)壓(ya)(ya)(ya)力(li)(li)室迅速(su)開啟并噴(pen)(pen)(pen)油(you)(you)(you)(you)(you).通(tong)過多次接通(tong)SCV,就可以(yi)實現(xian)多次噴(pen)(pen)(pen)油(you)(you)(you)(you)(you).如果(guo)與(yu)PCV配合,就可以(yi)實現(xian)不同(tong)形狀的(de)(de)(de)(de)主噴(pen)(pen)(pen)射(she)速(su)率曲線。挖掘機修理是(shi)國內(nei)挖掘機維(wei)(wei)(wei)修、挖掘機修理、挖機維(wei)(wei)(wei)修的知名服務企(qi)業(ye),擁有頂尖的維(wei)(wei)(wei)修檢測設備,主要從事各挖掘機維(wei)(wei)(wei)修業(ye)務。維修挖掘機精通(tong)十幾種(zhong)進(jin)口挖(wa)掘機的(de)維修知識(shi)，包括技術(shu)參數(shu)、維修數(shu)據、結構特點、液(ye)壓原理(li)圖(tu)、電(dian)器原理(li)圖(tu)和故(gu)障診斷方法(fa)等
　　以上(shang)是挖掘機(ji)修理廠(chang)分享的(de)"挖掘機(ji)電噴發動機(ji)的(de)類型"一(yi)文(wen)。