狼群影院

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)車的(de)(de)(de)(de)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)相當于(yu)(yu)汽(qi)車的(de)(de)(de)(de)心臟。發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)故障也(ye)是(shi)(shi)困(kun)擾車友的(de)(de)(de)(de)問題，氣(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)是(shi)(shi)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)的(de)(de)(de)(de)重(zhong)要(yao)部(bu)件(jian)。接下(xia)來就讓典(dian)邦給大家(jia)介(jie)紹一(yi)下(xia)氣(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)的(de)(de)(de)(de)作用(yong)(yong)(yong)吧！氣(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)的(de)(de)(de)(de)功(gong)能，氣(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)簡介(jie)-功(gong)能也(ye)是(shi)(shi)用(yong)(yong)(yong)于(yu)(yu)推動(dong)(dong)(dong)(dong)氣(qi)(qi)門(men)(men)(men)打(da)開的(de)(de)(de)(de)裝置(zhi)。因為早期(qi)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)中使(shi)用(yong)(yong)(yong)的(de)(de)(de)(de)這種裝置(zhi)形狀像一(yi)根細(xi)桿(gan)，所以被(bei)稱為氣(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)。它的(de)(de)(de)(de)主要(yao)功(gong)能是(shi)(shi)將凸輪的(de)(de)(de)(de)旋轉(zhuan)(zhuan)運動(dong)(dong)(dong)(dong)轉(zhuan)(zhuan)化為往復運動(dong)(dong)(dong)(dong)。但這種結構的(de)(de)(de)(de)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)凸輪軸一(yi)般不布置(zhi)在(zai)發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)頂部(bu)。隨著現代汽(qi)車發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)技術的(de)(de)(de)(de)發(fa)(fa)展(zhan)，越來越多的(de)(de)(de)(de)汽(qi)車發(fa)(fa)動(dong)(dong)(dong)(dong)機(ji)采用(yong)(yong)(yong)頂置(zhi)凸輪軸結構，其中傳統的(de)(de)(de)(de)長氣(qi)(qi)門(men)(men)(men)挺(ting)(ting)柱基(ji)本取(qu)消(xiao)，取(qu)而(er)(er)代之的(de)(de)(de)(de)是(shi)(shi)由(you)凸輪軸驅動(dong)(dong)(dong)(dong)的(de)(de)(de)(de)更加緊湊的(de)(de)(de)(de)液(ye)壓(ya)(ya)(ya)挺(ting)(ting)柱，或者凸輪軸直接驅動(dong)(dong)(dong)(dong)氣(qi)(qi)門(men)(men)(men)搖臂來控(kong)制氣(qi)(qi)門(men)(men)(men)的(de)(de)(de)(de)開閉。液(ye)壓(ya)(ya)(ya)杠(gang)桿(gan)主要(yao)由(you)柱塞(sai)、單(dan)(dan)向(xiang)(xiang)閥(fa)(fa)和單(dan)(dan)向(xiang)(xiang)閥(fa)(fa)彈簧組(zu)成(cheng)。液(ye)壓(ya)(ya)(ya)桿(gan)始終(zhong)與凸輪軸接觸，并且(qie)無間隙運行。在(zai)挺(ting)(ting)桿(gan)內部(bu)，液(ye)壓(ya)(ya)(ya)用(yong)(yong)(yong)于(yu)(yu)調整(zheng)(zheng)間隙。液(ye)壓(ya)(ya)(ya)挺(ting)(ting)柱主要(yao)由(you)柱塞(sai)、單(dan)(dan)向(xiang)(xiang)閥(fa)(fa)和單(dan)(dan)向(xiang)(xiang)閥(fa)(fa)彈簧組(zu)成(cheng)。止回閥(fa)(fa)用(yong)(yong)(yong)于(yu)(yu)儲存或釋放油。通過改變挺(ting)(ting)柱腔內的(de)(de)(de)(de)油壓(ya)(ya)(ya)，可以改變液(ye)壓(ya)(ya)(ya)挺(ting)(ting)柱的(de)(de)(de)(de)工(gong)作長度，從(cong)而(er)(er)自動(dong)(dong)(dong)(dong)調整(zheng)(zheng)氣(qi)(qi)門(men)(men)(men)間隙。

唯雅諾(進口)簡介

定位為“外交級MPV”的梅賽德斯-奔馳新唯雅諾（Viano），是頂尖MPV的典范之作，有著“智慧商務空間，至謹奔馳工藝”的核心優勢。唯雅諾的超長軸距（3200mm）帶來了寬敞的車內空間，搭配鎂鋁合金鋼座椅滑軌系統，提供靈活的空間組合與舒適的辦公環境，無限延伸專業價值。