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)發(fa)動(dong)(dong)機相(xiang)當于汽車(che)的(de)(de)(de)(de)心臟(zang)。發(fa)動(dong)(dong)機故障(zhang)也(ye)是(shi)(shi)困擾(rao)車(che)友的(de)(de)(de)(de)問題,氣(qi)(qi)(qi)(qi)門(men)(men)(men)挺(ting)桿(gan)是(shi)(shi)發(fa)動(dong)(dong)機的(de)(de)(de)(de)重要(yao)部件(jian)。接(jie)下來就讓典(dian)邦(bang)給大(da)家介紹一下氣(qi)(qi)(qi)(qi)門(men)(men)(men)挺(ting)桿(gan)的(de)(de)(de)(de)作用(yong)吧(ba)!氣(qi)(qi)(qi)(qi)門(men)(men)(men)挺(ting)桿(gan)的(de)(de)(de)(de)功(gong)能,氣(qi)(qi)(qi)(qi)門(men)(men)(men)挺(ting)桿(gan)簡(jian)介-功(gong)能也(ye)是(shi)(shi)用(yong)于推(tui)動(dong)(dong)氣(qi)(qi)(qi)(qi)門(men)(men)(men)打(da)開(kai)(kai)的(de)(de)(de)(de)裝(zhuang)置(zhi)。因(yin)為(wei)早期發(fa)動(dong)(dong)機中(zhong)使用(yong)的(de)(de)(de)(de)這種(zhong)裝(zhuang)置(zhi)形狀像一根細桿(gan),所以被稱為(wei)氣(qi)(qi)(qi)(qi)門(men)(men)(men)挺(ting)桿(gan)。它(ta)的(de)(de)(de)(de)主(zhu)要(yao)功(gong)能是(shi)(shi)將凸(tu)(tu)輪(lun)的(de)(de)(de)(de)旋轉(zhuan)運(yun)動(dong)(dong)轉(zhuan)化為(wei)往復運(yun)動(dong)(dong)。但這種(zhong)結(jie)構的(de)(de)(de)(de)發(fa)動(dong)(dong)機凸(tu)(tu)輪(lun)軸一般不布(bu)置(zhi)在發(fa)動(dong)(dong)機頂部。隨(sui)著現(xian)代汽車(che)發(fa)動(dong)(dong)機技(ji)術的(de)(de)(de)(de)發(fa)展,越來越多的(de)(de)(de)(de)汽車(che)發(fa)動(dong)(dong)機采用(yong)頂置(zhi)凸(tu)(tu)輪(lun)軸結(jie)構,其中(zhong)傳(chuan)統的(de)(de)(de)(de)長(chang)氣(qi)(qi)(qi)(qi)門(men)(men)(men)挺(ting)柱(zhu)(zhu)(zhu)(zhu)基本取(qu)消,取(qu)而代之的(de)(de)(de)(de)是(shi)(shi)由(you)凸(tu)(tu)輪(lun)軸驅動(dong)(dong)的(de)(de)(de)(de)更加緊湊的(de)(de)(de)(de)液(ye)壓挺(ting)柱(zhu)(zhu)(zhu)(zhu),或者凸(tu)(tu)輪(lun)軸直接(jie)驅動(dong)(dong)氣(qi)(qi)(qi)(qi)門(men)(men)(men)搖臂來控制氣(qi)(qi)(qi)(qi)門(men)(men)(men)的(de)(de)(de)(de)開(kai)(kai)閉(bi)。液(ye)壓杠(gang)桿(gan)主(zhu)要(yao)由(you)柱(zhu)(zhu)(zhu)(zhu)塞(sai)、單(dan)(dan)向(xiang)閥和(he)單(dan)(dan)向(xiang)閥彈(dan)簧組成。液(ye)壓桿(gan)始終與凸(tu)(tu)輪(lun)軸接(jie)觸,并且無間(jian)隙(xi)運(yun)行。在挺(ting)桿(gan)內(nei)(nei)部,液(ye)壓用(yong)于調(diao)整(zheng)間(jian)隙(xi)。液(ye)壓挺(ting)柱(zhu)(zhu)(zhu)(zhu)主(zhu)要(yao)由(you)柱(zhu)(zhu)(zhu)(zhu)塞(sai)、單(dan)(dan)向(xiang)閥和(he)單(dan)(dan)向(xiang)閥彈(dan)簧組成。止(zhi)回(hui)閥用(yong)于儲存或釋放油(you)(you)。通過改(gai)變(bian)挺(ting)柱(zhu)(zhu)(zhu)(zhu)腔內(nei)(nei)的(de)(de)(de)(de)油(you)(you)壓,可以改(gai)變(bian)液(ye)壓挺(ting)柱(zhu)(zhu)(zhu)(zhu)的(de)(de)(de)(de)工作長(chang)度(du),從而自動(dong)(dong)調(diao)整(zheng)氣(qi)(qi)(qi)(qi)門(men)(men)(men)間(jian)隙(xi)。
長(chang)安星光4500是長(chang)安汽車在(zai)全新(xin)的(de)商用(yong)(yong)車平臺上,根(gen)據物流(liu)用(yong)(yong)車利益最大(da)化需求打(da)造的(de)一款裝(zhuang)載(zai)率靈(ling)活、油耗較低(di)、使用(yong)(yong)成(cheng)本低(di)的(de)新(xin)經濟商用(yong)(yong)車型。渾厚大(da)氣,商務感十足,有利于企業形象的(de)良好(hao)傳遞。在(zai)內部(bu)空間和細節設(she)計上,
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