排(pai)氣歧管(guan),是與發動機氣缸(gang)(gang)體相連的(de),將各缸(gang)(gang)的(de)排(pai)氣集中起來導(dao)入排(pai)氣總管(guan),帶有(you)分歧的(de)管(guan)路(lu)。對它的(de)要(yao)求主要(yao)是,盡量減少排(pai)氣阻力,并(bing)避(bi)免各缸(gang)(gang)之間相互干擾。
排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)作(zuo)用:排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)是(shi)連接每個氣(qi)缸(gang)的(de)(de)(de)(de)(de),最后(hou)排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)會(hui)匯集成一根(gen)管(guan)(guan)(guan)(guan)子(zi)(zi),排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)可以讓(rang)汽缸(gang)內(nei)排(pai)(pai)(pai)(pai)出的(de)(de)(de)(de)(de)廢氣(qi)進入排(pai)(pai)(pai)(pai)氣(qi)管(guan)(guan)(guan)(guan)。汽車都是(shi)有(you)排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de),如果發(fa)動(dong)機有(you)四(si)個氣(qi)缸(gang),就有(you)四(si)根(gen)排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan),如果發(fa)動(dong)機有(you)八個氣(qi)缸(gang),就有(you)八個排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)。排(pai)(pai)(pai)(pai)氣(qi)歧(qi)(qi)管(guan)(guan)(guan)(guan)也被稱為排(pai)(pai)(pai)(pai)氣(qi)頭段(duan)(duan)(duan),發(fa)動(dong)機的(de)(de)(de)(de)(de)排(pai)(pai)(pai)(pai)氣(qi)管(guan)(guan)(guan)(guan)是(shi)由三(san)段(duan)(duan)(duan)組成的(de)(de)(de)(de)(de),分別是(shi)頭段(duan)(duan)(duan),中(zhong)(zhong)段(duan)(duan)(duan),尾段(duan)(duan)(duan)。中(zhong)(zhong)段(duan)(duan)(duan)是(shi)在底盤上(shang)的(de)(de)(de)(de)(de),中(zhong)(zhong)段(duan)(duan)(duan)是(shi)一根(gen)比較長的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)子(zi)(zi)。尾段(duan)(duan)(duan)是(shi)靠近后(hou)保(bao)險杠的(de)(de)(de)(de)(de)部分,尾段(duan)(duan)(duan)上(shang)一般有(you)一個比較大(da)的(de)(de)(de)(de)(de)消音器。排(pai)(pai)(pai)(pai)氣(qi)管(guan)(guan)(guan)(guan)可以讓(rang)發(fa)動(dong)機做(zuo)功產(chan)生(sheng)的(de)(de)(de)(de)(de)廢氣(qi)排(pai)(pai)(pai)(pai)到大(da)氣(qi)中(zhong)(zhong),并且可以降低排(pai)(pai)(pai)(pai)氣(qi)過程(cheng)中(zhong)(zhong)產(chan)生(sheng)的(de)(de)(de)(de)(de)噪音。
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