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(che)(che)(che)的(de)(de)(de)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)相當于汽(qi)車(che)(che)(che)的(de)(de)(de)心臟(zang)。發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)故障也是(shi)困擾車(che)(che)(che)友的(de)(de)(de)問題,氣(qi)(qi)門(men)挺(ting)桿(gan)(gan)(gan)是(shi)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)重要(yao)部(bu)件。接(jie)下來就讓典邦給大家介(jie)紹一下氣(qi)(qi)門(men)挺(ting)桿(gan)(gan)(gan)的(de)(de)(de)作用(yong)(yong)吧!氣(qi)(qi)門(men)挺(ting)桿(gan)(gan)(gan)的(de)(de)(de)功(gong)能(neng)(neng),氣(qi)(qi)門(men)挺(ting)桿(gan)(gan)(gan)簡介(jie)-功(gong)能(neng)(neng)也是(shi)用(yong)(yong)于推動(dong)(dong)(dong)(dong)氣(qi)(qi)門(men)打開的(de)(de)(de)裝置(zhi)(zhi)。因為早期(qi)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)中(zhong)使用(yong)(yong)的(de)(de)(de)這(zhe)種裝置(zhi)(zhi)形狀像一根細桿(gan)(gan)(gan),所(suo)以被(bei)稱為氣(qi)(qi)門(men)挺(ting)桿(gan)(gan)(gan)。它的(de)(de)(de)主(zhu)(zhu)要(yao)功(gong)能(neng)(neng)是(shi)將(jiang)凸(tu)(tu)(tu)輪的(de)(de)(de)旋轉運(yun)動(dong)(dong)(dong)(dong)轉化為往復運(yun)動(dong)(dong)(dong)(dong)。但這(zhe)種結構(gou)的(de)(de)(de)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)凸(tu)(tu)(tu)輪軸(zhou)一般不布(bu)置(zhi)(zhi)在(zai)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)頂(ding)部(bu)。隨著現代汽(qi)車(che)(che)(che)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)技術的(de)(de)(de)發(fa)展,越來越多(duo)的(de)(de)(de)汽(qi)車(che)(che)(che)發(fa)動(dong)(dong)(dong)(dong)機(ji)(ji)采用(yong)(yong)頂(ding)置(zhi)(zhi)凸(tu)(tu)(tu)輪軸(zhou)結構(gou),其中(zhong)傳統的(de)(de)(de)長(chang)(chang)氣(qi)(qi)門(men)挺(ting)柱(zhu)(zhu)(zhu)(zhu)基本(ben)取消,取而代之的(de)(de)(de)是(shi)由(you)凸(tu)(tu)(tu)輪軸(zhou)驅動(dong)(dong)(dong)(dong)的(de)(de)(de)更加緊(jin)湊(cou)的(de)(de)(de)液壓挺(ting)柱(zhu)(zhu)(zhu)(zhu),或者(zhe)凸(tu)(tu)(tu)輪軸(zhou)直(zhi)接(jie)驅動(dong)(dong)(dong)(dong)氣(qi)(qi)門(men)搖臂來控制氣(qi)(qi)門(men)的(de)(de)(de)開閉。液壓杠桿(gan)(gan)(gan)主(zhu)(zhu)要(yao)由(you)柱(zhu)(zhu)(zhu)(zhu)塞、單(dan)向(xiang)閥(fa)和單(dan)向(xiang)閥(fa)彈簧組(zu)成。液壓桿(gan)(gan)(gan)始終與(yu)凸(tu)(tu)(tu)輪軸(zhou)接(jie)觸,并且無間隙運(yun)行。在(zai)挺(ting)桿(gan)(gan)(gan)內部(bu),液壓用(yong)(yong)于調整間隙。液壓挺(ting)柱(zhu)(zhu)(zhu)(zhu)主(zhu)(zhu)要(yao)由(you)柱(zhu)(zhu)(zhu)(zhu)塞、單(dan)向(xiang)閥(fa)和單(dan)向(xiang)閥(fa)彈簧組(zu)成。止回閥(fa)用(yong)(yong)于儲存或釋放油。通過改變(bian)挺(ting)柱(zhu)(zhu)(zhu)(zhu)腔內的(de)(de)(de)油壓,可以改變(bian)液壓挺(ting)柱(zhu)(zhu)(zhu)(zhu)的(de)(de)(de)工(gong)作長(chang)(chang)度,從而自動(dong)(dong)(dong)(dong)調整氣(qi)(qi)門(men)間隙。
斯柯達(da)Octavia Combi提供1.8T逸(yi)享版和1.8T逸(yi)臻版兩種(zhong)選擇,其售價分別為19.92萬元(yuan)和23.78萬元(yuan)。作為斯柯達(da)品牌明(ming)星車型Octavia全新明(ming)銳(rui)的(de)旅(lv)行(xing)(xing)版,Octavia Combi擁有簡約大氣的(de)外觀(guan)、靈(ling)動(dong)便(bian)捷(jie)的(de)空間、極(ji)致(zhi)澎湃的(de)動(dong)力以及可靠(kao)的(de)五星級(ji)安全保障,是一款全面滿足車主居家(jia)、休閑、商務等(deng)多(duo)種(zhong)需求的(de)旅(lv)行(xing)(xing)車。
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