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。
汽車的(de)(de)(de)(de)(de)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)相當(dang)于(yu)汽車的(de)(de)(de)(de)(de)心(xin)臟。發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)故障也是(shi)困擾車友的(de)(de)(de)(de)(de)問題,氣(qi)(qi)門(men)(men)(men)(men)(men)挺(ting)桿(gan)(gan)是(shi)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)的(de)(de)(de)(de)(de)重要(yao)(yao)部件(jian)。接(jie)下(xia)來(lai)就(jiu)讓典邦(bang)給大家介紹(shao)一(yi)下(xia)氣(qi)(qi)門(men)(men)(men)(men)(men)挺(ting)桿(gan)(gan)的(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)吧!氣(qi)(qi)門(men)(men)(men)(men)(men)挺(ting)桿(gan)(gan)的(de)(de)(de)(de)(de)功能(neng),氣(qi)(qi)門(men)(men)(men)(men)(men)挺(ting)桿(gan)(gan)簡介-功能(neng)也是(shi)用(yong)(yong)(yong)于(yu)推(tui)動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)門(men)(men)(men)(men)(men)打(da)開的(de)(de)(de)(de)(de)裝置。因為早(zao)期發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)中使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)這種裝置形狀(zhuang)像一(yi)根細桿(gan)(gan),所以被稱(cheng)為氣(qi)(qi)門(men)(men)(men)(men)(men)挺(ting)桿(gan)(gan)。它的(de)(de)(de)(de)(de)主要(yao)(yao)功能(neng)是(shi)將凸(tu)(tu)(tu)輪(lun)(lun)的(de)(de)(de)(de)(de)旋轉運動(dong)(dong)(dong)(dong)(dong)轉化為往復運動(dong)(dong)(dong)(dong)(dong)。但(dan)這種結構(gou)的(de)(de)(de)(de)(de)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)凸(tu)(tu)(tu)輪(lun)(lun)軸(zhou)(zhou)一(yi)般不(bu)布置在發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)頂部。隨著現代(dai)汽車發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)技術的(de)(de)(de)(de)(de)發(fa)展,越(yue)(yue)來(lai)越(yue)(yue)多的(de)(de)(de)(de)(de)汽車發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)采用(yong)(yong)(yong)頂置凸(tu)(tu)(tu)輪(lun)(lun)軸(zhou)(zhou)結構(gou),其中傳統的(de)(de)(de)(de)(de)長(chang)氣(qi)(qi)門(men)(men)(men)(men)(men)挺(ting)柱(zhu)(zhu)(zhu)基本取消,取而(er)代(dai)之的(de)(de)(de)(de)(de)是(shi)由(you)(you)凸(tu)(tu)(tu)輪(lun)(lun)軸(zhou)(zhou)驅動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)更加緊湊的(de)(de)(de)(de)(de)液(ye)(ye)(ye)壓(ya)挺(ting)柱(zhu)(zhu)(zhu),或(huo)者(zhe)凸(tu)(tu)(tu)輪(lun)(lun)軸(zhou)(zhou)直接(jie)驅動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)門(men)(men)(men)(men)(men)搖臂來(lai)控制氣(qi)(qi)門(men)(men)(men)(men)(men)的(de)(de)(de)(de)(de)開閉(bi)。液(ye)(ye)(ye)壓(ya)杠桿(gan)(gan)主要(yao)(yao)由(you)(you)柱(zhu)(zhu)(zhu)塞、單向閥(fa)和單向閥(fa)彈簧(huang)組成。液(ye)(ye)(ye)壓(ya)桿(gan)(gan)始終(zhong)與凸(tu)(tu)(tu)輪(lun)(lun)軸(zhou)(zhou)接(jie)觸,并且無間(jian)隙(xi)運行。在挺(ting)桿(gan)(gan)內部,液(ye)(ye)(ye)壓(ya)用(yong)(yong)(yong)于(yu)調整間(jian)隙(xi)。液(ye)(ye)(ye)壓(ya)挺(ting)柱(zhu)(zhu)(zhu)主要(yao)(yao)由(you)(you)柱(zhu)(zhu)(zhu)塞、單向閥(fa)和單向閥(fa)彈簧(huang)組成。止回(hui)閥(fa)用(yong)(yong)(yong)于(yu)儲存或(huo)釋放(fang)油。通過改變(bian)挺(ting)柱(zhu)(zhu)(zhu)腔內的(de)(de)(de)(de)(de)油壓(ya),可以改變(bian)液(ye)(ye)(ye)壓(ya)挺(ting)柱(zhu)(zhu)(zhu)的(de)(de)(de)(de)(de)工作(zuo)長(chang)度(du),從而(er)自動(dong)(dong)(dong)(dong)(dong)調整氣(qi)(qi)門(men)(men)(men)(men)(men)間(jian)隙(xi)。
東南R7是(shi)東(dong)南汽車旗下中(zhong)型SUV.
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