排(pai)氣(qi)歧管(guan),是與發動機(ji)氣(qi)缸(gang)體相連的,將各缸(gang)的排(pai)氣(qi)集中起來導入排(pai)氣(qi)總管(guan),帶有分歧的管(guan)路。對它的要求主要是,盡量(liang)減少排(pai)氣(qi)阻(zu)力(li),并避免(mian)各缸(gang)之間相互(hu)干(gan)擾。
排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)的作用:排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)是(shi)連接每(mei)個(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang)的,最后(hou)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)會匯集成(cheng)(cheng)一(yi)根(gen)管(guan)(guan)(guan)子,排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)可(ke)(ke)以讓汽(qi)缸(gang)內排(pai)出的廢氣(qi)(qi)(qi)(qi)(qi)進入排(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)。汽(qi)車都是(shi)有(you)(you)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)的,如果發(fa)(fa)動(dong)(dong)機(ji)(ji)有(you)(you)四個(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang),就有(you)(you)四根(gen)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan),如果發(fa)(fa)動(dong)(dong)機(ji)(ji)有(you)(you)八(ba)個(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang),就有(you)(you)八(ba)個(ge)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)。排(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)管(guan)(guan)(guan)也被稱為排(pai)氣(qi)(qi)(qi)(qi)(qi)頭段(duan),發(fa)(fa)動(dong)(dong)機(ji)(ji)的排(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)是(shi)由三(san)段(duan)組成(cheng)(cheng)的,分別(bie)是(shi)頭段(duan),中(zhong)段(duan),尾段(duan)。中(zhong)段(duan)是(shi)在底(di)盤上的,中(zhong)段(duan)是(shi)一(yi)根(gen)比(bi)較長的管(guan)(guan)(guan)子。尾段(duan)是(shi)靠近后(hou)保險(xian)杠(gang)的部分,尾段(duan)上一(yi)般有(you)(you)一(yi)個(ge)比(bi)較大的消音(yin)器。排(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)可(ke)(ke)以讓發(fa)(fa)動(dong)(dong)機(ji)(ji)做(zuo)功(gong)產生的廢氣(qi)(qi)(qi)(qi)(qi)排(pai)到大氣(qi)(qi)(qi)(qi)(qi)中(zhong),并且(qie)可(ke)(ke)以降低排(pai)氣(qi)(qi)(qi)(qi)(qi)過(guo)程中(zhong)產生的噪(zao)音(yin)。
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