排(pai)(pai)氣(qi)(qi)(qi)歧管(guan),是與發動機(ji)氣(qi)(qi)(qi)缸體相連的,將各(ge)缸的排(pai)(pai)氣(qi)(qi)(qi)集中起來導入排(pai)(pai)氣(qi)(qi)(qi)總(zong)管(guan),帶有分歧的管(guan)路。對(dui)它(ta)的要求主要是,盡(jin)量(liang)減少(shao)排(pai)(pai)氣(qi)(qi)(qi)阻(zu)力,并避免各(ge)缸之間相互干(gan)擾。
排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)的作(zuo)用:排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)是(shi)(shi)連接(jie)每個(ge)(ge)(ge)氣(qi)(qi)(qi)缸(gang)的,最后排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)會匯集成(cheng)一根管(guan)(guan)子,排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)可以讓汽缸(gang)內排出的廢(fei)氣(qi)(qi)(qi)進(jin)入排氣(qi)(qi)(qi)管(guan)(guan)。汽車都是(shi)(shi)有(you)(you)排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)的,如(ru)果發動(dong)(dong)機有(you)(you)四(si)個(ge)(ge)(ge)氣(qi)(qi)(qi)缸(gang),就有(you)(you)四(si)根排氣(qi)(qi)(qi)歧(qi)管(guan)(guan),如(ru)果發動(dong)(dong)機有(you)(you)八個(ge)(ge)(ge)氣(qi)(qi)(qi)缸(gang),就有(you)(you)八個(ge)(ge)(ge)排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)。排氣(qi)(qi)(qi)歧(qi)管(guan)(guan)也(ye)被(bei)稱為排氣(qi)(qi)(qi)頭段(duan)(duan),發動(dong)(dong)機的排氣(qi)(qi)(qi)管(guan)(guan)是(shi)(shi)由三段(duan)(duan)組成(cheng)的,分別是(shi)(shi)頭段(duan)(duan),中段(duan)(duan),尾段(duan)(duan)。中段(duan)(duan)是(shi)(shi)在(zai)底盤(pan)上(shang)的,中段(duan)(duan)是(shi)(shi)一根比較(jiao)(jiao)長(chang)的管(guan)(guan)子。尾段(duan)(duan)是(shi)(shi)靠近后保(bao)險杠的部分,尾段(duan)(duan)上(shang)一般(ban)有(you)(you)一個(ge)(ge)(ge)比較(jiao)(jiao)大的消(xiao)音器。排氣(qi)(qi)(qi)管(guan)(guan)可以讓發動(dong)(dong)機做(zuo)功產生的廢(fei)氣(qi)(qi)(qi)排到大氣(qi)(qi)(qi)中,并(bing)且可以降(jiang)低排氣(qi)(qi)(qi)過程中產生的噪音。
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