排(pai)氣歧(qi)管,是(shi)與發動(dong)機(ji)氣缸體相連的(de),將各(ge)缸的(de)排(pai)氣集中(zhong)起來(lai)導入排(pai)氣總管,帶有(you)分歧(qi)的(de)管路。對它的(de)要求主要是(shi),盡量減少(shao)排(pai)氣阻(zu)力,并避免各(ge)缸之間相互干擾。
排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)的(de)(de)作用:排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)是(shi)連接(jie)每個(ge)氣(qi)(qi)(qi)(qi)缸的(de)(de),最后排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)會匯集成一(yi)根管(guan)(guan)子,排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)可(ke)以讓汽缸內排(pai)出的(de)(de)廢(fei)氣(qi)(qi)(qi)(qi)進入排(pai)氣(qi)(qi)(qi)(qi)管(guan)(guan)。汽車都(dou)是(shi)有(you)排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)的(de)(de),如(ru)果發動(dong)機有(you)四個(ge)氣(qi)(qi)(qi)(qi)缸,就有(you)四根排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan),如(ru)果發動(dong)機有(you)八個(ge)氣(qi)(qi)(qi)(qi)缸,就有(you)八個(ge)排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)。排(pai)氣(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)也被稱為排(pai)氣(qi)(qi)(qi)(qi)頭段(duan)(duan)(duan),發動(dong)機的(de)(de)排(pai)氣(qi)(qi)(qi)(qi)管(guan)(guan)是(shi)由三(san)段(duan)(duan)(duan)組(zu)成的(de)(de),分(fen)(fen)別是(shi)頭段(duan)(duan)(duan),中(zhong)段(duan)(duan)(duan),尾(wei)(wei)(wei)段(duan)(duan)(duan)。中(zhong)段(duan)(duan)(duan)是(shi)在底盤(pan)上的(de)(de),中(zhong)段(duan)(duan)(duan)是(shi)一(yi)根比較長的(de)(de)管(guan)(guan)子。尾(wei)(wei)(wei)段(duan)(duan)(duan)是(shi)靠(kao)近后保險(xian)杠的(de)(de)部分(fen)(fen),尾(wei)(wei)(wei)段(duan)(duan)(duan)上一(yi)般(ban)有(you)一(yi)個(ge)比較大(da)(da)的(de)(de)消(xiao)音(yin)器(qi)。排(pai)氣(qi)(qi)(qi)(qi)管(guan)(guan)可(ke)以讓發動(dong)機做功產(chan)生(sheng)的(de)(de)廢(fei)氣(qi)(qi)(qi)(qi)排(pai)到大(da)(da)氣(qi)(qi)(qi)(qi)中(zhong),并且可(ke)以降(jiang)低排(pai)氣(qi)(qi)(qi)(qi)過(guo)程(cheng)中(zhong)產(chan)生(sheng)的(de)(de)噪音(yin)。
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