進氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)閥座(zuo)(zuo)環(huan)功(gong)能(neng)氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)的(de)(de)(de)主要(yao)作用(yong)是(shi)(shi)承受高速沖(chong)擊(ji),密(mi)(mi)封氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)。發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)用(yong)于延長(chang)發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)的(de)(de)(de)使(shi)用(yong)壽(shou)命(ming),便于維(wei)護和(he)更(geng)換(huan)。氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)的(de)(de)(de)缺點是(shi)(shi)導熱性差,選(xuan)擇合(he)適的(de)(de)(de)與(yu)缸膛過盈量,否則工作時座(zuo)(zuo)圈(quan)(quan)(quan)(quan)會脫落(luo),造成發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)維(wei)修(xiu)事故!氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)一(yi)般由耐熱合(he)金鋼(gang)制成。汽(qi)(qi)車氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)是(shi)(shi)汽(qi)(qi)車發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)的(de)(de)(de)重要(yao)附(fu)件,主要(yao)用(yong)來密(mi)(mi)封發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men),基本上是(shi)(shi)一(yi)個(ge)時刻承受高速沖(chong)擊(ji)的(de)(de)(de)部件。因此,汽(qi)(qi)車氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)在使(shi)用(yong)一(yi)段時間后,容(rong)易出(chu)現不同程度的(de)(de)(de)磨損失效,經常面臨維(wei)修(xiu)。修(xiu)理氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)時,應根據氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)的(de)(de)(de)不同磨損情況選(xuan)擇不同的(de)(de)(de)修(xiu)理方法,以降低發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)的(de)(de)(de)維(wei)修(xiu)成本。一(yi)般來說,氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)座(zuo)(zuo)圈(quan)(quan)(quan)(quan)的(de)(de)(de)作用(yong)是(shi)(shi)提高發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)的(de)(de)(de)使(shi)用(yong)壽(shou)命(ming),承受高速沖(chong)擊(ji),方便發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)維(wei)修(xiu)和(he)更(geng)換(huan),密(mi)(mi)封發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)氣(qi)(qi)(qi)門(men)(men)(men)(men)(men)(men)(men)。
1、氣門(Valve)的作用是專門負責向發動機內輸入燃料并排出廢氣,傳統發動機每個汽缸只有一個進氣門和一個排氣門,這種設計結構相對簡單,成本較低,維修方便,低速性能較好,缺點是功率很難提高,尤其是高轉速時充氣效率低、性能較弱。
2、為了提高進排氣效率,現在多采用多氣門技術,常見的是每個汽缸布置有4個氣門(也有單缸3或5個氣門的設計,原理一樣,如奧迪A6的發動機),4汽缸一共就是16個氣門,我們在汽車資料上經常看到的“16V”就表示發動機共16個氣門。這種多氣門結構容易形成緊湊型燃燒室,噴油器布置在中央,這樣可以令油氣混合氣燃燒更迅速、更均勻,各氣門的重量和開度適當地減小,使氣門開啟或閉合的速度更快。
SWM斯威(wei)G01是SWM斯威(wei)汽車旗下緊湊型SUV。
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