排氣(qi)(qi)歧管(guan)(guan),是與發動(dong)機(ji)氣(qi)(qi)缸(gang)體相(xiang)連的(de)(de),將(jiang)各缸(gang)的(de)(de)排氣(qi)(qi)集中起來導入排氣(qi)(qi)總管(guan)(guan),帶有(you)分歧的(de)(de)管(guan)(guan)路。對它的(de)(de)要(yao)求(qiu)主要(yao)是,盡量(liang)減少(shao)排氣(qi)(qi)阻力,并避免各缸(gang)之間相(xiang)互(hu)干擾(rao)。
排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)的(de)(de)作用(yong):排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)是(shi)(shi)連(lian)接(jie)每個(ge)氣(qi)(qi)(qi)缸(gang)的(de)(de),最后(hou)排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)會匯集(ji)成一根管(guan)(guan)(guan)(guan)(guan)子,排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)可以讓汽缸(gang)內排(pai)(pai)(pai)出(chu)的(de)(de)廢氣(qi)(qi)(qi)進入排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)。汽車都(dou)是(shi)(shi)有(you)排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)的(de)(de),如果(guo)發(fa)動機有(you)四(si)個(ge)氣(qi)(qi)(qi)缸(gang),就有(you)四(si)根排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan),如果(guo)發(fa)動機有(you)八個(ge)氣(qi)(qi)(qi)缸(gang),就有(you)八個(ge)排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)。排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)也被稱(cheng)為排(pai)(pai)(pai)氣(qi)(qi)(qi)頭段(duan)(duan),發(fa)動機的(de)(de)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)是(shi)(shi)由三(san)段(duan)(duan)組成的(de)(de),分別是(shi)(shi)頭段(duan)(duan),中(zhong)段(duan)(duan),尾(wei)段(duan)(duan)。中(zhong)段(duan)(duan)是(shi)(shi)在底盤(pan)上(shang)的(de)(de),中(zhong)段(duan)(duan)是(shi)(shi)一根比較長的(de)(de)管(guan)(guan)(guan)(guan)(guan)子。尾(wei)段(duan)(duan)是(shi)(shi)靠近后(hou)保險杠的(de)(de)部分,尾(wei)段(duan)(duan)上(shang)一般有(you)一個(ge)比較大的(de)(de)消音器。排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)可以讓發(fa)動機做功產(chan)生的(de)(de)廢氣(qi)(qi)(qi)排(pai)(pai)(pai)到大氣(qi)(qi)(qi)中(zhong),并且可以降低排(pai)(pai)(pai)氣(qi)(qi)(qi)過程中(zhong)產(chan)生的(de)(de)噪音。
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