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)車的(de)(de)(de)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)相(xiang)當(dang)于(yu)汽(qi)車的(de)(de)(de)心(xin)臟。發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)故障也是困擾(rao)車友的(de)(de)(de)問題,氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)(gan)(gan)是發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)的(de)(de)(de)重要(yao)(yao)(yao)部件。接下來就讓典邦給(gei)大家介(jie)紹一(yi)下氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)(gan)(gan)的(de)(de)(de)作用(yong)吧!氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)(gan)(gan)的(de)(de)(de)功(gong)能,氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)(gan)(gan)簡介(jie)-功(gong)能也是用(yong)于(yu)推動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)(men)打(da)開(kai)的(de)(de)(de)裝(zhuang)置(zhi)。因為早期發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)中使(shi)用(yong)的(de)(de)(de)這種裝(zhuang)置(zhi)形狀(zhuang)像一(yi)根細桿(gan)(gan)(gan),所以被(bei)稱為氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)桿(gan)(gan)(gan)。它的(de)(de)(de)主(zhu)要(yao)(yao)(yao)功(gong)能是將凸輪(lun)的(de)(de)(de)旋轉(zhuan)運動(dong)(dong)(dong)(dong)(dong)轉(zhuan)化為往復運動(dong)(dong)(dong)(dong)(dong)。但這種結構的(de)(de)(de)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)凸輪(lun)軸一(yi)般不布置(zhi)在(zai)發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)頂部。隨著現(xian)代汽(qi)車發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)技術的(de)(de)(de)發(fa)(fa)展(zhan),越來越多(duo)的(de)(de)(de)汽(qi)車發(fa)(fa)動(dong)(dong)(dong)(dong)(dong)機(ji)采用(yong)頂置(zhi)凸輪(lun)軸結構,其中傳統的(de)(de)(de)長(chang)氣(qi)(qi)(qi)門(men)(men)(men)挺(ting)(ting)柱基(ji)本取消(xiao),取而代之(zhi)的(de)(de)(de)是由(you)凸輪(lun)軸驅動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)更(geng)加緊湊(cou)的(de)(de)(de)液(ye)(ye)壓(ya)(ya)挺(ting)(ting)柱,或者凸輪(lun)軸直接驅動(dong)(dong)(dong)(dong)(dong)氣(qi)(qi)(qi)門(men)(men)(men)搖臂來控制(zhi)氣(qi)(qi)(qi)門(men)(men)(men)的(de)(de)(de)開(kai)閉。液(ye)(ye)壓(ya)(ya)杠桿(gan)(gan)(gan)主(zhu)要(yao)(yao)(yao)由(you)柱塞、單(dan)向(xiang)閥(fa)和單(dan)向(xiang)閥(fa)彈(dan)簧組(zu)成。液(ye)(ye)壓(ya)(ya)桿(gan)(gan)(gan)始終與凸輪(lun)軸接觸,并且無間隙運行。在(zai)挺(ting)(ting)桿(gan)(gan)(gan)內部,液(ye)(ye)壓(ya)(ya)用(yong)于(yu)調(diao)整間隙。液(ye)(ye)壓(ya)(ya)挺(ting)(ting)柱主(zhu)要(yao)(yao)(yao)由(you)柱塞、單(dan)向(xiang)閥(fa)和單(dan)向(xiang)閥(fa)彈(dan)簧組(zu)成。止回閥(fa)用(yong)于(yu)儲存或釋(shi)放油。通(tong)過(guo)改變(bian)挺(ting)(ting)柱腔內的(de)(de)(de)油壓(ya)(ya),可(ke)以改變(bian)液(ye)(ye)壓(ya)(ya)挺(ting)(ting)柱的(de)(de)(de)工作長(chang)度(du),從而自動(dong)(dong)(dong)(dong)(dong)調(diao)整氣(qi)(qi)(qi)門(men)(men)(men)間隙。
新一代沃(wo)爾沃(wo)Volvo S40是第(di)一輛具(ju)有(you)監(jian)測(ce)駕駛(shi)者的(de)(de)(de)(de)工(gong)作(zuo)強度并延遲(chi)顯示次要信息(xi)以讓(rang)其(qi)全(quan)神貫注于駕駛(shi)的(de)(de)(de)(de)車(che)。沃(wo)爾沃(wo)S40具(ju)有(you)極強扭轉剛度車(che)身(shen)和最新底盤設計(ji)提供了靈活且安全(quan)的(de)(de)(de)(de)駕駛(shi)體驗。沃(wo)爾沃(wo)S40以人體工(gong)程(cheng)學設計(ji)的(de)(de)(de)(de)駕駛(shi)環境,高品質的(de)(de)(de)(de)音響系(xi)統,人性(xing)化的(de)(de)(de)(de)設計(ji)和無出其(qi)右的(de)(de)(de)(de)安全(quan)保護,可以滿足您對Volvo車(che)的(de)(de)(de)(de)所有(you)期待。 目前(qian),沃(wo)爾沃(wo)S40為其(qi)所屬系(xi)列下的(de)(de)(de)(de)最新車(che)系(xi)。
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