氣門挺桿。氣門挺桿的作用如下:
1、為了保證氣門關閉嚴密,會在氣門桿端與氣門驅動件之間留有適當的間隙,稱為氣門間隙;
2、若氣門間隙調整不當就會使發動機運行不正常的,過大會影響氣門的開啟量,氣門升程減少引起進氣不足,排氣不徹底,過小會引起氣門關閉不嚴引起漏氣,造成動力下降;
3、所以為了避免氣門間隙調整不當引起的麻煩,一般高速發動機上都會使用可自行調整氣門間隙的液力挺桿。
汽(qi)車的(de)(de)(de)(de)發(fa)動(dong)(dong)(dong)機(ji)相當于(yu)(yu)汽(qi)車的(de)(de)(de)(de)心臟。發(fa)動(dong)(dong)(dong)機(ji)故障也(ye)(ye)是(shi)(shi)困(kun)擾車友的(de)(de)(de)(de)問(wen)題(ti),氣(qi)(qi)(qi)門(men)挺(ting)桿(gan)是(shi)(shi)發(fa)動(dong)(dong)(dong)機(ji)的(de)(de)(de)(de)重要部件。接下來(lai)(lai)就讓(rang)典邦給大家(jia)介紹一(yi)下氣(qi)(qi)(qi)門(men)挺(ting)桿(gan)的(de)(de)(de)(de)作用(yong)吧(ba)!氣(qi)(qi)(qi)門(men)挺(ting)桿(gan)的(de)(de)(de)(de)功(gong)能,氣(qi)(qi)(qi)門(men)挺(ting)桿(gan)簡介-功(gong)能也(ye)(ye)是(shi)(shi)用(yong)于(yu)(yu)推動(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)打開的(de)(de)(de)(de)裝置(zhi)。因為早期發(fa)動(dong)(dong)(dong)機(ji)中使用(yong)的(de)(de)(de)(de)這種裝置(zhi)形狀像(xiang)一(yi)根細桿(gan),所以(yi)(yi)被稱為氣(qi)(qi)(qi)門(men)挺(ting)桿(gan)。它的(de)(de)(de)(de)主(zhu)(zhu)要功(gong)能是(shi)(shi)將凸(tu)(tu)(tu)輪(lun)的(de)(de)(de)(de)旋轉運(yun)動(dong)(dong)(dong)轉化為往復運(yun)動(dong)(dong)(dong)。但這種結構的(de)(de)(de)(de)發(fa)動(dong)(dong)(dong)機(ji)凸(tu)(tu)(tu)輪(lun)軸(zhou)一(yi)般不布(bu)置(zhi)在(zai)發(fa)動(dong)(dong)(dong)機(ji)頂部。隨著現代汽(qi)車發(fa)動(dong)(dong)(dong)機(ji)技術的(de)(de)(de)(de)發(fa)展,越(yue)來(lai)(lai)越(yue)多的(de)(de)(de)(de)汽(qi)車發(fa)動(dong)(dong)(dong)機(ji)采用(yong)頂置(zhi)凸(tu)(tu)(tu)輪(lun)軸(zhou)結構,其中傳統的(de)(de)(de)(de)長氣(qi)(qi)(qi)門(men)挺(ting)柱(zhu)(zhu)基本取消(xiao),取而代之(zhi)的(de)(de)(de)(de)是(shi)(shi)由凸(tu)(tu)(tu)輪(lun)軸(zhou)驅動(dong)(dong)(dong)的(de)(de)(de)(de)更(geng)加(jia)緊湊的(de)(de)(de)(de)液(ye)(ye)(ye)壓(ya)(ya)挺(ting)柱(zhu)(zhu),或者凸(tu)(tu)(tu)輪(lun)軸(zhou)直接驅動(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)搖臂來(lai)(lai)控制(zhi)氣(qi)(qi)(qi)門(men)的(de)(de)(de)(de)開閉。液(ye)(ye)(ye)壓(ya)(ya)杠桿(gan)主(zhu)(zhu)要由柱(zhu)(zhu)塞、單(dan)向閥和(he)單(dan)向閥彈簧組成(cheng)。液(ye)(ye)(ye)壓(ya)(ya)桿(gan)始終與凸(tu)(tu)(tu)輪(lun)軸(zhou)接觸,并(bing)且無間隙運(yun)行(xing)。在(zai)挺(ting)桿(gan)內部,液(ye)(ye)(ye)壓(ya)(ya)用(yong)于(yu)(yu)調整(zheng)間隙。液(ye)(ye)(ye)壓(ya)(ya)挺(ting)柱(zhu)(zhu)主(zhu)(zhu)要由柱(zhu)(zhu)塞、單(dan)向閥和(he)單(dan)向閥彈簧組成(cheng)。止(zhi)回閥用(yong)于(yu)(yu)儲存(cun)或釋放油(you)。通過(guo)改變挺(ting)柱(zhu)(zhu)腔內的(de)(de)(de)(de)油(you)壓(ya)(ya),可(ke)以(yi)(yi)改變液(ye)(ye)(ye)壓(ya)(ya)挺(ting)柱(zhu)(zhu)的(de)(de)(de)(de)工作長度(du),從(cong)而自動(dong)(dong)(dong)調整(zheng)氣(qi)(qi)(qi)門(men)間隙。
馬(ma)可波羅基于豪華MPV Viano 平臺設(she)計,Viano馬(ma)可波羅是一輛豪華MPV,。靈活多變的(de)(de)內(nei)部(bu)空間(jian)(jian),滿(man)足商務(wu)和休閑雙重(zhong)需求。舒適的(de)(de)睡眠(mian)空間(jian)(jian)可提供(gong)四人的(de)(de)睡眠(mian)空間(jian)(jian),一應俱全的(de)(de)廚房隨(sui)時(shi)隨(sui)地享(xiang)受美食,充裕的(de)(de)儲物(wu)空間(jian)(jian)想帶的(de)(de)都(dou)能(neng)帶上。
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