排氣(qi)歧管,是(shi)與發動(dong)機氣(qi)缸體相連的(de)(de),將各缸的(de)(de)排氣(qi)集中起來導入排氣(qi)總管,帶有(you)分歧的(de)(de)管路(lu)。對它的(de)(de)要(yao)求主(zhu)要(yao)是(shi),盡(jin)量減少排氣(qi)阻力,并避(bi)免各缸之間相互(hu)干擾(rao)。
排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)的(de)(de)作用:排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)是(shi)(shi)連接每個氣(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)的(de)(de),最(zui)后排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)會匯(hui)集成一(yi)根(gen)管(guan)(guan)(guan)子(zi),排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)可(ke)以讓(rang)汽缸(gang)內排(pai)(pai)(pai)出的(de)(de)廢氣(qi)(qi)(qi)(qi)(qi)(qi)進入(ru)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)。汽車都是(shi)(shi)有(you)(you)(you)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)的(de)(de),如(ru)果發動機有(you)(you)(you)四(si)個氣(qi)(qi)(qi)(qi)(qi)(qi)缸(gang),就有(you)(you)(you)四(si)根(gen)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan),如(ru)果發動機有(you)(you)(you)八個氣(qi)(qi)(qi)(qi)(qi)(qi)缸(gang),就有(you)(you)(you)八個排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)。排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)也(ye)被稱(cheng)為排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)頭段(duan)(duan),發動機的(de)(de)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)是(shi)(shi)由三(san)段(duan)(duan)組成的(de)(de),分(fen)別是(shi)(shi)頭段(duan)(duan),中(zhong)段(duan)(duan),尾段(duan)(duan)。中(zhong)段(duan)(duan)是(shi)(shi)在底盤上的(de)(de),中(zhong)段(duan)(duan)是(shi)(shi)一(yi)根(gen)比(bi)較(jiao)長(chang)的(de)(de)管(guan)(guan)(guan)子(zi)。尾段(duan)(duan)是(shi)(shi)靠近(jin)后保險杠的(de)(de)部(bu)分(fen),尾段(duan)(duan)上一(yi)般有(you)(you)(you)一(yi)個比(bi)較(jiao)大(da)的(de)(de)消音器。排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)可(ke)以讓(rang)發動機做(zuo)功產生(sheng)的(de)(de)廢氣(qi)(qi)(qi)(qi)(qi)(qi)排(pai)(pai)(pai)到大(da)氣(qi)(qi)(qi)(qi)(qi)(qi)中(zhong),并(bing)且(qie)可(ke)以降低(di)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)過(guo)程中(zhong)產生(sheng)的(de)(de)噪音。
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