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。
汽車的(de)(de)(de)(de)(de)發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)相(xiang)當于汽車的(de)(de)(de)(de)(de)心(xin)臟。發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)故障也(ye)是(shi)(shi)(shi)困擾車友的(de)(de)(de)(de)(de)問題(ti),氣(qi)門(men)(men)(men)挺(ting)(ting)(ting)(ting)桿(gan)是(shi)(shi)(shi)發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)重要(yao)部件(jian)。接(jie)下來就讓典邦(bang)給大家(jia)介紹一下氣(qi)門(men)(men)(men)挺(ting)(ting)(ting)(ting)桿(gan)的(de)(de)(de)(de)(de)作用(yong)(yong)吧!氣(qi)門(men)(men)(men)挺(ting)(ting)(ting)(ting)桿(gan)的(de)(de)(de)(de)(de)功能(neng),氣(qi)門(men)(men)(men)挺(ting)(ting)(ting)(ting)桿(gan)簡介-功能(neng)也(ye)是(shi)(shi)(shi)用(yong)(yong)于推動(dong)(dong)(dong)(dong)(dong)氣(qi)門(men)(men)(men)打開(kai)的(de)(de)(de)(de)(de)裝(zhuang)置(zhi)(zhi)(zhi)。因為(wei)早期(qi)發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)中(zhong)(zhong)使用(yong)(yong)的(de)(de)(de)(de)(de)這(zhe)種裝(zhuang)置(zhi)(zhi)(zhi)形狀(zhuang)像一根細(xi)桿(gan),所以被稱為(wei)氣(qi)門(men)(men)(men)挺(ting)(ting)(ting)(ting)桿(gan)。它(ta)的(de)(de)(de)(de)(de)主要(yao)功能(neng)是(shi)(shi)(shi)將凸(tu)(tu)輪(lun)的(de)(de)(de)(de)(de)旋轉運動(dong)(dong)(dong)(dong)(dong)轉化為(wei)往復運動(dong)(dong)(dong)(dong)(dong)。但(dan)這(zhe)種結構的(de)(de)(de)(de)(de)發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)凸(tu)(tu)輪(lun)軸一般(ban)不(bu)布置(zhi)(zhi)(zhi)在發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)頂(ding)部。隨(sui)著現代汽車發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)技術的(de)(de)(de)(de)(de)發展(zhan),越(yue)(yue)來越(yue)(yue)多(duo)的(de)(de)(de)(de)(de)汽車發動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)采用(yong)(yong)頂(ding)置(zhi)(zhi)(zhi)凸(tu)(tu)輪(lun)軸結構,其中(zhong)(zhong)傳統(tong)的(de)(de)(de)(de)(de)長(chang)氣(qi)門(men)(men)(men)挺(ting)(ting)(ting)(ting)柱(zhu)基本取消(xiao),取而(er)代之的(de)(de)(de)(de)(de)是(shi)(shi)(shi)由(you)凸(tu)(tu)輪(lun)軸驅動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)更加緊湊(cou)的(de)(de)(de)(de)(de)液(ye)(ye)(ye)壓(ya)挺(ting)(ting)(ting)(ting)柱(zhu),或(huo)者凸(tu)(tu)輪(lun)軸直接(jie)驅動(dong)(dong)(dong)(dong)(dong)氣(qi)門(men)(men)(men)搖臂來控制氣(qi)門(men)(men)(men)的(de)(de)(de)(de)(de)開(kai)閉。液(ye)(ye)(ye)壓(ya)杠桿(gan)主要(yao)由(you)柱(zhu)塞(sai)、單(dan)向閥(fa)(fa)和(he)單(dan)向閥(fa)(fa)彈(dan)簧組成。液(ye)(ye)(ye)壓(ya)桿(gan)始(shi)終與凸(tu)(tu)輪(lun)軸接(jie)觸(chu),并且無間(jian)(jian)隙(xi)運行(xing)。在挺(ting)(ting)(ting)(ting)桿(gan)內(nei)部,液(ye)(ye)(ye)壓(ya)用(yong)(yong)于調(diao)整(zheng)間(jian)(jian)隙(xi)。液(ye)(ye)(ye)壓(ya)挺(ting)(ting)(ting)(ting)柱(zhu)主要(yao)由(you)柱(zhu)塞(sai)、單(dan)向閥(fa)(fa)和(he)單(dan)向閥(fa)(fa)彈(dan)簧組成。止回閥(fa)(fa)用(yong)(yong)于儲存或(huo)釋放(fang)油。通過改變挺(ting)(ting)(ting)(ting)柱(zhu)腔內(nei)的(de)(de)(de)(de)(de)油壓(ya),可以改變液(ye)(ye)(ye)壓(ya)挺(ting)(ting)(ting)(ting)柱(zhu)的(de)(de)(de)(de)(de)工作長(chang)度,從而(er)自動(dong)(dong)(dong)(dong)(dong)調(diao)整(zheng)氣(qi)門(men)(men)(men)間(jian)(jian)隙(xi)。
東風標致(zhi)307的(de)(de)(de)前(qian)臉外(wai)觀(guan)酷(ku)似(si)獅(shi)子(zi)(zi)威(wei)俊的(de)(de)(de)面孔,尤其(qi)兩個(ge)(ge)前(qian)大燈(deng)好像獅(shi)子(zi)(zi)的(de)(de)(de)雙眼炯炯放光,不怒自(zi)威(wei),這是沿襲(xi)了標致(zhi)車(che)系共有的(de)(de)(de)特征。從側面看,個(ge)(ge)性十足,整體(ti)(ti)流(liu)線柔潤(run)和諧(xie),前(qian)翼(yi)子(zi)(zi)板滑過車(che)身上(shang)部、弧形頂蓋與后三(san)角窗(chuang)、后尾(wei)翼(yi)融為一體(ti)(ti),很自(zi)然(ran)(ran)地勾勒出后備箱的(de)(de)(de)彎曲(qu)輪廓,后備箱與后尾(wei)翼(yi)過渡自(zi)然(ran)(ran),車(che)后燈(deng)巧妙地鑲嵌其(qi)中。整體(ti)(ti)外(wai)型平(ping)衡勻稱(cheng),強勁與和諧(xie)自(zi)然(ran)(ran)流(liu)露,無(wu)疑是一款優(you)雅、個(ge)(ge)性十足的(de)(de)(de)愛(ai)車(che)。
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