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)(che)的(de)(de)(de)(de)發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)相當于(yu)汽車(che)(che)的(de)(de)(de)(de)心臟。發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)故(gu)障(zhang)也(ye)是(shi)(shi)(shi)困(kun)擾車(che)(che)友(you)的(de)(de)(de)(de)問題,氣(qi)(qi)(qi)門(men)(men)挺(ting)桿(gan)(gan)(gan)是(shi)(shi)(shi)發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)的(de)(de)(de)(de)重要(yao)部件。接下來就讓典邦給大家介紹(shao)一(yi)(yi)下氣(qi)(qi)(qi)門(men)(men)挺(ting)桿(gan)(gan)(gan)的(de)(de)(de)(de)作(zuo)用(yong)吧!氣(qi)(qi)(qi)門(men)(men)挺(ting)桿(gan)(gan)(gan)的(de)(de)(de)(de)功(gong)能(neng)(neng),氣(qi)(qi)(qi)門(men)(men)挺(ting)桿(gan)(gan)(gan)簡介-功(gong)能(neng)(neng)也(ye)是(shi)(shi)(shi)用(yong)于(yu)推(tui)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)打開的(de)(de)(de)(de)裝置(zhi)。因為早期發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)中使用(yong)的(de)(de)(de)(de)這(zhe)種裝置(zhi)形(xing)狀像一(yi)(yi)根細(xi)桿(gan)(gan)(gan),所(suo)以被(bei)稱為氣(qi)(qi)(qi)門(men)(men)挺(ting)桿(gan)(gan)(gan)。它(ta)的(de)(de)(de)(de)主要(yao)功(gong)能(neng)(neng)是(shi)(shi)(shi)將凸(tu)輪(lun)的(de)(de)(de)(de)旋(xuan)轉(zhuan)運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)轉(zhuan)化為往復運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。但(dan)這(zhe)種結構的(de)(de)(de)(de)發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)凸(tu)輪(lun)軸(zhou)一(yi)(yi)般不布置(zhi)在發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)頂部。隨著(zhu)現代汽車(che)(che)發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)技(ji)術(shu)的(de)(de)(de)(de)發(fa)(fa)(fa)展,越來越多的(de)(de)(de)(de)汽車(che)(che)發(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)采用(yong)頂置(zhi)凸(tu)輪(lun)軸(zhou)結構,其中傳統(tong)的(de)(de)(de)(de)長(chang)氣(qi)(qi)(qi)門(men)(men)挺(ting)柱(zhu)(zhu)基本取消,取而代之的(de)(de)(de)(de)是(shi)(shi)(shi)由凸(tu)輪(lun)軸(zhou)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)更(geng)加緊湊的(de)(de)(de)(de)液(ye)壓挺(ting)柱(zhu)(zhu),或者(zhe)凸(tu)輪(lun)軸(zhou)直接驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)搖臂來控制氣(qi)(qi)(qi)門(men)(men)的(de)(de)(de)(de)開閉。液(ye)壓杠桿(gan)(gan)(gan)主要(yao)由柱(zhu)(zhu)塞、單向(xiang)(xiang)閥和單向(xiang)(xiang)閥彈簧(huang)(huang)組(zu)成(cheng)。液(ye)壓桿(gan)(gan)(gan)始終與凸(tu)輪(lun)軸(zhou)接觸,并且(qie)無間隙運行。在挺(ting)桿(gan)(gan)(gan)內(nei)部,液(ye)壓用(yong)于(yu)調整間隙。液(ye)壓挺(ting)柱(zhu)(zhu)主要(yao)由柱(zhu)(zhu)塞、單向(xiang)(xiang)閥和單向(xiang)(xiang)閥彈簧(huang)(huang)組(zu)成(cheng)。止回閥用(yong)于(yu)儲(chu)存(cun)或釋放油。通過改變挺(ting)柱(zhu)(zhu)腔內(nei)的(de)(de)(de)(de)油壓,可以改變液(ye)壓挺(ting)柱(zhu)(zhu)的(de)(de)(de)(de)工作(zuo)長(chang)度,從而自動(dong)(dong)(dong)(dong)(dong)(dong)(dong)調整氣(qi)(qi)(qi)門(men)(men)間隙。
日(ri)產350Z 是一(yi)輛純雙座(zuo)位(wei)跑(pao)車(che),它將日(ri)產跑(pao)車(che)的(de)(de)傳統與最(zui)新(xin)技術和(he)最(zui)新(xin)造(zao)型設計融(rong)為了一(yi)體(ti),繼承了Z型車(che)的(de)(de)設計、性(xing)能和(he)價值理念,更顯其(qi)全新(xin)的(de)(de)風范。一(yi)見鐘情、鐘愛一(yi)生,
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