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)(de)(de)(de)發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)相當(dang)于汽車(che)的(de)(de)(de)(de)(de)心臟。發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)故障也(ye)是(shi)(shi)困擾(rao)車(che)友的(de)(de)(de)(de)(de)問題,氣(qi)(qi)門(men)(men)(men)(men)挺(ting)(ting)桿是(shi)(shi)發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)(de)(de)重要(yao)部件。接(jie)下(xia)(xia)來就讓典邦(bang)給大家介紹一(yi)下(xia)(xia)氣(qi)(qi)門(men)(men)(men)(men)挺(ting)(ting)桿的(de)(de)(de)(de)(de)作(zuo)用(yong)吧!氣(qi)(qi)門(men)(men)(men)(men)挺(ting)(ting)桿的(de)(de)(de)(de)(de)功(gong)(gong)能(neng)(neng)(neng),氣(qi)(qi)門(men)(men)(men)(men)挺(ting)(ting)桿簡介-功(gong)(gong)能(neng)(neng)(neng)也(ye)是(shi)(shi)用(yong)于推動(dong)(dong)(dong)氣(qi)(qi)門(men)(men)(men)(men)打開(kai)的(de)(de)(de)(de)(de)裝置。因(yin)為(wei)(wei)(wei)早期發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)中(zhong)使用(yong)的(de)(de)(de)(de)(de)這(zhe)種裝置形狀像(xiang)一(yi)根細桿,所以被稱為(wei)(wei)(wei)氣(qi)(qi)門(men)(men)(men)(men)挺(ting)(ting)桿。它的(de)(de)(de)(de)(de)主要(yao)功(gong)(gong)能(neng)(neng)(neng)是(shi)(shi)將凸(tu)(tu)輪(lun)的(de)(de)(de)(de)(de)旋轉運(yun)動(dong)(dong)(dong)轉化為(wei)(wei)(wei)往復運(yun)動(dong)(dong)(dong)。但這(zhe)種結(jie)構的(de)(de)(de)(de)(de)發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)凸(tu)(tu)輪(lun)軸(zhou)一(yi)般不布置在發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)頂(ding)部。隨(sui)著現代汽車(che)發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)技術的(de)(de)(de)(de)(de)發(fa)(fa)(fa)展,越來越多的(de)(de)(de)(de)(de)汽車(che)發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)采(cai)用(yong)頂(ding)置凸(tu)(tu)輪(lun)軸(zhou)結(jie)構,其(qi)中(zhong)傳統的(de)(de)(de)(de)(de)長(chang)氣(qi)(qi)門(men)(men)(men)(men)挺(ting)(ting)柱(zhu)(zhu)基本取消,取而代之的(de)(de)(de)(de)(de)是(shi)(shi)由凸(tu)(tu)輪(lun)軸(zhou)驅動(dong)(dong)(dong)的(de)(de)(de)(de)(de)更加緊湊的(de)(de)(de)(de)(de)液(ye)壓(ya)挺(ting)(ting)柱(zhu)(zhu),或者(zhe)凸(tu)(tu)輪(lun)軸(zhou)直接(jie)驅動(dong)(dong)(dong)氣(qi)(qi)門(men)(men)(men)(men)搖臂來控(kong)制氣(qi)(qi)門(men)(men)(men)(men)的(de)(de)(de)(de)(de)開(kai)閉。液(ye)壓(ya)杠桿主要(yao)由柱(zhu)(zhu)塞(sai)、單(dan)向閥(fa)和單(dan)向閥(fa)彈簧(huang)組(zu)(zu)成(cheng)。液(ye)壓(ya)桿始終與凸(tu)(tu)輪(lun)軸(zhou)接(jie)觸,并且(qie)無間隙(xi)運(yun)行。在挺(ting)(ting)桿內(nei)部,液(ye)壓(ya)用(yong)于調(diao)整間隙(xi)。液(ye)壓(ya)挺(ting)(ting)柱(zhu)(zhu)主要(yao)由柱(zhu)(zhu)塞(sai)、單(dan)向閥(fa)和單(dan)向閥(fa)彈簧(huang)組(zu)(zu)成(cheng)。止回閥(fa)用(yong)于儲存或釋放(fang)油(you)。通過(guo)改變挺(ting)(ting)柱(zhu)(zhu)腔內(nei)的(de)(de)(de)(de)(de)油(you)壓(ya),可(ke)以改變液(ye)壓(ya)挺(ting)(ting)柱(zhu)(zhu)的(de)(de)(de)(de)(de)工作(zuo)長(chang)度,從(cong)而自動(dong)(dong)(dong)調(diao)整氣(qi)(qi)門(men)(men)(men)(men)間隙(xi)。
寶沃BX5是一(yi)款定位于15萬(wan)元級別,主打(da)年輕消費者的緊(jin)湊型(xing)SUV。外觀動(dong)感,動(dong)力充裕,安(an)全智選是寶沃BX5的核心賣點。2020款寶沃(wo)BX5已于7月上(shang)市,官方指導價12.98-15.58萬元,符合國六排放標準(zhun)。
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