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排(pai)氣(qi)歧(qi)管，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，帶有分(fen)歧(qi)的管路。對(dui)它的要求主要是，盡(jin)量(liang)減(jian)少排(pai)氣(qi)阻力(li)，并避免各缸(gang)之間相互(hu)干擾。
排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)的作用：排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)是(shi)連(lian)接每個氣(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)的，最后(hou)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)會(hui)匯集成(cheng)一根(gen)管(guan)(guan)(guan)子，排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)可以(yi)讓汽(qi)缸(gang)(gang)(gang)內排(pai)(pai)(pai)出的廢(fei)(fei)氣(qi)(qi)(qi)(qi)進入(ru)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)管(guan)(guan)(guan)。汽(qi)車都是(shi)有(you)(you)(you)(you)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)的，如果(guo)發動機(ji)有(you)(you)(you)(you)四個氣(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)，就有(you)(you)(you)(you)四根(gen)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)，如果(guo)發動機(ji)有(you)(you)(you)(you)八個氣(qi)(qi)(qi)(qi)缸(gang)(gang)(gang)，就有(you)(you)(you)(you)八個排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)。排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)也被稱為排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)頭段，發動機(ji)的排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)管(guan)(guan)(guan)是(shi)由三段組(zu)成(cheng)的，分別(bie)是(shi)頭段，中段，尾(wei)(wei)段。中段是(shi)在底盤上的，中段是(shi)一根(gen)比(bi)較長的管(guan)(guan)(guan)子。尾(wei)(wei)段是(shi)靠近后(hou)保險杠的部分，尾(wei)(wei)段上一般有(you)(you)(you)(you)一個比(bi)較大的消音(yin)器。排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)管(guan)(guan)(guan)可以(yi)讓發動機(ji)做功(gong)產生的廢(fei)(fei)氣(qi)(qi)(qi)(qi)排(pai)(pai)(pai)到大氣(qi)(qi)(qi)(qi)中，并且可以(yi)降低排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)過程(cheng)中產生的噪音(yin)。
桂冠Medalist
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