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(che)的(de)(de)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)相當于(yu)(yu)汽車(che)的(de)(de)心臟。發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)故障也(ye)是(shi)(shi)困擾車(che)友的(de)(de)問題(ti),氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)是(shi)(shi)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)的(de)(de)重要部件。接下(xia)來就讓典邦(bang)給大家介(jie)紹一(yi)(yi)下(xia)氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)的(de)(de)作用(yong)(yong)吧!氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)的(de)(de)功能(neng),氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)簡介(jie)-功能(neng)也(ye)是(shi)(shi)用(yong)(yong)于(yu)(yu)推動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)(men)打開(kai)的(de)(de)裝置(zhi)。因為早期發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)中(zhong)使用(yong)(yong)的(de)(de)這種裝置(zhi)形狀像一(yi)(yi)根(gen)細桿(gan)(gan)(gan)(gan),所以被稱為氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)。它的(de)(de)主(zhu)要功能(neng)是(shi)(shi)將凸(tu)輪(lun)的(de)(de)旋轉運動(dong)(dong)(dong)(dong)(dong)轉化(hua)為往(wang)復運動(dong)(dong)(dong)(dong)(dong)。但這種結構的(de)(de)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)凸(tu)輪(lun)軸(zhou)一(yi)(yi)般不(bu)布置(zhi)在(zai)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)頂(ding)部。隨著現代(dai)汽車(che)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)技術的(de)(de)發(fa)展(zhan),越(yue)來越(yue)多的(de)(de)汽車(che)發(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)(ji)采用(yong)(yong)頂(ding)置(zhi)凸(tu)輪(lun)軸(zhou)結構,其中(zhong)傳(chuan)統的(de)(de)長(chang)氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)(ting)柱基本取消,取而代(dai)之的(de)(de)是(shi)(shi)由凸(tu)輪(lun)軸(zhou)驅動(dong)(dong)(dong)(dong)(dong)的(de)(de)更加緊(jin)湊(cou)的(de)(de)液(ye)(ye)(ye)壓(ya)(ya)挺(ting)(ting)(ting)柱,或(huo)者凸(tu)輪(lun)軸(zhou)直接驅動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)(men)搖臂來控制氣(qi)(qi)(qi)門(men)(men)(men)的(de)(de)開(kai)閉。液(ye)(ye)(ye)壓(ya)(ya)杠桿(gan)(gan)(gan)(gan)主(zhu)要由柱塞、單(dan)向閥(fa)(fa)和單(dan)向閥(fa)(fa)彈(dan)(dan)簧組(zu)成(cheng)。液(ye)(ye)(ye)壓(ya)(ya)桿(gan)(gan)(gan)(gan)始(shi)終(zhong)與凸(tu)輪(lun)軸(zhou)接觸,并且無(wu)間隙(xi)運行(xing)。在(zai)挺(ting)(ting)(ting)桿(gan)(gan)(gan)(gan)內(nei)部,液(ye)(ye)(ye)壓(ya)(ya)用(yong)(yong)于(yu)(yu)調(diao)整(zheng)(zheng)間隙(xi)。液(ye)(ye)(ye)壓(ya)(ya)挺(ting)(ting)(ting)柱主(zhu)要由柱塞、單(dan)向閥(fa)(fa)和單(dan)向閥(fa)(fa)彈(dan)(dan)簧組(zu)成(cheng)。止回(hui)閥(fa)(fa)用(yong)(yong)于(yu)(yu)儲存(cun)或(huo)釋(shi)放(fang)油。通(tong)過改變挺(ting)(ting)(ting)柱腔內(nei)的(de)(de)油壓(ya)(ya),可以改變液(ye)(ye)(ye)壓(ya)(ya)挺(ting)(ting)(ting)柱的(de)(de)工(gong)作長(chang)度,從而自動(dong)(dong)(dong)(dong)(dong)調(diao)整(zheng)(zheng)氣(qi)(qi)(qi)門(men)(men)(men)間隙(xi)。
紅旗(qi)旗(qi)艦既繼承了老紅旗(qi)莊重典(dian)雅、厚重氣派的(de)(de)風格,又(you)兼(jian)收并蓄(xu)了當今國際(ji)車(che)壇所流行的(de)(de)豪(hao)華時尚(shang)、豐(feng)滿圓潤 的(de)(de)流線造型;在(zai)車(che)體內部設計方面隨處可見世界汽車(che)制造的(de)(de)高新技術與乘坐舒適性、安全性的(de)(de)完美結合與展現。
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