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)的(de)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機相當于(yu)汽(qi)車(che)(che)的(de)心臟。發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機故障也是(shi)(shi)困擾車(che)(che)友的(de)問題,氣(qi)(qi)(qi)門(men)(men)(men)挺桿(gan)(gan)是(shi)(shi)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機的(de)重(zhong)要(yao)部件。接(jie)下(xia)來就讓(rang)典邦給大家介紹一下(xia)氣(qi)(qi)(qi)門(men)(men)(men)挺桿(gan)(gan)的(de)作用(yong)(yong)吧!氣(qi)(qi)(qi)門(men)(men)(men)挺桿(gan)(gan)的(de)功(gong)能(neng),氣(qi)(qi)(qi)門(men)(men)(men)挺桿(gan)(gan)簡(jian)介-功(gong)能(neng)也是(shi)(shi)用(yong)(yong)于(yu)推(tui)動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)(men)打開的(de)裝置。因為(wei)(wei)早(zao)期(qi)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機中(zhong)使(shi)用(yong)(yong)的(de)這種(zhong)裝置形狀像一根細桿(gan)(gan),所以(yi)被稱為(wei)(wei)氣(qi)(qi)(qi)門(men)(men)(men)挺桿(gan)(gan)。它的(de)主要(yao)功(gong)能(neng)是(shi)(shi)將凸(tu)輪(lun)的(de)旋轉運(yun)動(dong)(dong)(dong)(dong)(dong)轉化(hua)為(wei)(wei)往復運(yun)動(dong)(dong)(dong)(dong)(dong)。但這種(zhong)結構(gou)的(de)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機凸(tu)輪(lun)軸(zhou)一般不布置在發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機頂(ding)部。隨著現代(dai)汽(qi)車(che)(che)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機技術的(de)發(fa)(fa)展,越來越多的(de)汽(qi)車(che)(che)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機采用(yong)(yong)頂(ding)置凸(tu)輪(lun)軸(zhou)結構(gou),其(qi)中(zhong)傳(chuan)統的(de)長氣(qi)(qi)(qi)門(men)(men)(men)挺柱(zhu)(zhu)基本取消(xiao),取而(er)代(dai)之的(de)是(shi)(shi)由(you)凸(tu)輪(lun)軸(zhou)驅動(dong)(dong)(dong)(dong)(dong)的(de)更(geng)加(jia)緊湊的(de)液(ye)壓(ya)(ya)(ya)挺柱(zhu)(zhu),或者(zhe)凸(tu)輪(lun)軸(zhou)直(zhi)接(jie)驅動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)(men)搖臂(bei)來控制氣(qi)(qi)(qi)門(men)(men)(men)的(de)開閉。液(ye)壓(ya)(ya)(ya)杠桿(gan)(gan)主要(yao)由(you)柱(zhu)(zhu)塞、單向(xiang)閥和單向(xiang)閥彈簧組(zu)(zu)成。液(ye)壓(ya)(ya)(ya)桿(gan)(gan)始(shi)終(zhong)與(yu)凸(tu)輪(lun)軸(zhou)接(jie)觸,并且無(wu)間隙運(yun)行。在挺桿(gan)(gan)內部,液(ye)壓(ya)(ya)(ya)用(yong)(yong)于(yu)調(diao)整間隙。液(ye)壓(ya)(ya)(ya)挺柱(zhu)(zhu)主要(yao)由(you)柱(zhu)(zhu)塞、單向(xiang)閥和單向(xiang)閥彈簧組(zu)(zu)成。止回閥用(yong)(yong)于(yu)儲存或釋(shi)放(fang)油(you)。通過改(gai)變挺柱(zhu)(zhu)腔內的(de)油(you)壓(ya)(ya)(ya),可以(yi)改(gai)變液(ye)壓(ya)(ya)(ya)挺柱(zhu)(zhu)的(de)工作長度,從(cong)而(er)自動(dong)(dong)(dong)(dong)(dong)調(diao)整氣(qi)(qi)(qi)門(men)(men)(men)間隙。
奧(ao)迪S6運動(dong)版車(che)型的(de)(de)(de)(de)長、寬(kuan)、高及(ji)軸距分別(bie)為(wei)4916 mm 、2012 mm 、1449 mm 和2849mm,而鍍鉻進(jin)氣格柵以及(ji)S6標識表明(ming)(ming)其(qi)與眾不同的(de)(de)(de)(de)身份。奧(ao)迪S6運動(dong)版車(che)型內(nei)飾基本保持(chi)普通(tong)版車(che)型的(de)(de)(de)(de)設計風格,但中(zhong)控(kong)臺和車(che)門(men)上(shang)大量碳纖維材(cai)質的(de)(de)(de)(de)應用,讓奧(ao)迪S6運動(dong)版內(nei)飾運動(dong)感十足。全新奧(ao)迪S6簡(jian)潔(jie)的(de)(de)(de)(de)外型具有雕塑般的(de)(de)(de)(de)美感。動(dong)感的(de)(de)(de)(de)線條勾勒(le)出(chu)簡(jian)潔(jie)的(de)(de)(de)(de)傾斜表面,低矮(ai)的(de)(de)(de)(de)車(che)頂線條明(ming)(ming)顯向(xiang)地(di)面傾斜,勾勒(le)出(chu)流暢的(de)(de)(de)(de)外觀輪廓(kuo)。鉑灰色的(de)(de)(de)(de)一體(ti)(ti)式散熱格柵與立(li)體(ti)(ti)的(de)(de)(de)(de)車(che)身前臉融為(wei)一體(ti)(ti)。標配(pei)了全氣候大燈、高速公(gong)路燈和全LED前大燈。車(che)輛尾燈采用全LED技術,由90個發光二極管組(zu)成,整個尾燈設計立(li)體(ti)(ti)通(tong)透,非常耐看。
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