狼群视频在线

氣門挺桿簡介

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。

氣門挺桿的作用

汽(qi)(qi)車的(de)(de)(de)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)相當于汽(qi)(qi)車的(de)(de)(de)心臟(zang)。發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)故障也是(shi)(shi)(shi)困擾(rao)車友的(de)(de)(de)問(wen)題，氣(qi)門(men)挺(ting)(ting)(ting)(ting)(ting)桿(gan)(gan)是(shi)(shi)(shi)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)的(de)(de)(de)重要(yao)部(bu)件。接下來(lai)就讓典邦給(gei)大家介紹一下氣(qi)門(men)挺(ting)(ting)(ting)(ting)(ting)桿(gan)(gan)的(de)(de)(de)作(zuo)用(yong)(yong)吧！氣(qi)門(men)挺(ting)(ting)(ting)(ting)(ting)桿(gan)(gan)的(de)(de)(de)功(gong)能(neng)，氣(qi)門(men)挺(ting)(ting)(ting)(ting)(ting)桿(gan)(gan)簡介-功(gong)能(neng)也是(shi)(shi)(shi)用(yong)(yong)于推動(dong)(dong)(dong)(dong)氣(qi)門(men)打開的(de)(de)(de)裝置(zhi)。因(yin)為早期發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)中使用(yong)(yong)的(de)(de)(de)這(zhe)種裝置(zhi)形狀像一根細桿(gan)(gan)，所以被稱為氣(qi)門(men)挺(ting)(ting)(ting)(ting)(ting)桿(gan)(gan)。它的(de)(de)(de)主要(yao)功(gong)能(neng)是(shi)(shi)(shi)將(jiang)凸輪(lun)(lun)的(de)(de)(de)旋(xuan)轉(zhuan)運(yun)動(dong)(dong)(dong)(dong)轉(zhuan)化為往復運(yun)動(dong)(dong)(dong)(dong)。但這(zhe)種結(jie)構的(de)(de)(de)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)凸輪(lun)(lun)軸(zhou)一般不布(bu)置(zhi)在(zai)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)頂(ding)部(bu)。隨著現代汽(qi)(qi)車發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)技術的(de)(de)(de)發(fa)(fa)展，越(yue)來(lai)越(yue)多的(de)(de)(de)汽(qi)(qi)車發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)采用(yong)(yong)頂(ding)置(zhi)凸輪(lun)(lun)軸(zhou)結(jie)構，其中傳(chuan)統的(de)(de)(de)長氣(qi)門(men)挺(ting)(ting)(ting)(ting)(ting)柱基本取消，取而代之的(de)(de)(de)是(shi)(shi)(shi)由凸輪(lun)(lun)軸(zhou)驅(qu)(qu)動(dong)(dong)(dong)(dong)的(de)(de)(de)更加緊湊的(de)(de)(de)液壓(ya)挺(ting)(ting)(ting)(ting)(ting)柱，或(huo)者凸輪(lun)(lun)軸(zhou)直接驅(qu)(qu)動(dong)(dong)(dong)(dong)氣(qi)門(men)搖臂來(lai)控(kong)制氣(qi)門(men)的(de)(de)(de)開閉。液壓(ya)杠桿(gan)(gan)主要(yao)由柱塞(sai)(sai)、單(dan)向(xiang)(xiang)(xiang)閥和(he)(he)單(dan)向(xiang)(xiang)(xiang)閥彈簧(huang)組成(cheng)。液壓(ya)桿(gan)(gan)始終與凸輪(lun)(lun)軸(zhou)接觸，并且無間(jian)隙(xi)運(yun)行。在(zai)挺(ting)(ting)(ting)(ting)(ting)桿(gan)(gan)內部(bu)，液壓(ya)用(yong)(yong)于調整間(jian)隙(xi)。液壓(ya)挺(ting)(ting)(ting)(ting)(ting)柱主要(yao)由柱塞(sai)(sai)、單(dan)向(xiang)(xiang)(xiang)閥和(he)(he)單(dan)向(xiang)(xiang)(xiang)閥彈簧(huang)組成(cheng)。止(zhi)回閥用(yong)(yong)于儲(chu)存(cun)或(huo)釋放油。通過改變挺(ting)(ting)(ting)(ting)(ting)柱腔內的(de)(de)(de)油壓(ya)，可以改變液壓(ya)挺(ting)(ting)(ting)(ting)(ting)柱的(de)(de)(de)工作(zuo)長度，從而自動(dong)(dong)(dong)(dong)調整氣(qi)門(men)間(jian)隙(xi)。

慶鈴中型商用車簡介

慶(qing)鈴中型商(shang)用(yong)車(che)是慶(qing)鈴旗下的(de)一款商(shang)務車(che)，采用(yong)了5.2T發動機，滿足商(shang)務接(jie)待的(de)需(xu)求。