排(pai)氣(qi)歧管,是與發動機氣(qi)缸(gang)(gang)體相連的(de)(de),將各缸(gang)(gang)的(de)(de)排(pai)氣(qi)集中(zhong)起來(lai)導入排(pai)氣(qi)總管,帶(dai)有(you)分(fen)歧的(de)(de)管路(lu)。對它的(de)(de)要(yao)求(qiu)主(zhu)要(yao)是,盡量減少排(pai)氣(qi)阻力,并避免(mian)各缸(gang)(gang)之間相互干擾。
排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)作(zuo)用:排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)連接每個氣(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)的(de)(de)(de),最后(hou)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)會匯集(ji)成(cheng)一根(gen)管(guan)(guan)(guan)(guan)(guan)(guan)子(zi)(zi),排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)可以讓汽(qi)缸(gang)內排(pai)(pai)出(chu)的(de)(de)(de)廢(fei)氣(qi)(qi)(qi)(qi)(qi)(qi)進入排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)。汽(qi)車(che)都是(shi)有(you)(you)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de),如果發動(dong)(dong)機(ji)有(you)(you)四個氣(qi)(qi)(qi)(qi)(qi)(qi)缸(gang),就有(you)(you)四根(gen)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan),如果發動(dong)(dong)機(ji)有(you)(you)八個氣(qi)(qi)(qi)(qi)(qi)(qi)缸(gang),就有(you)(you)八個排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)。排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)(guan)也被稱為排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)頭段(duan)(duan),發動(dong)(dong)機(ji)的(de)(de)(de)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)由三段(duan)(duan)組(zu)成(cheng)的(de)(de)(de),分別是(shi)頭段(duan)(duan),中(zhong)段(duan)(duan),尾段(duan)(duan)。中(zhong)段(duan)(duan)是(shi)在(zai)底盤上(shang)的(de)(de)(de),中(zhong)段(duan)(duan)是(shi)一根(gen)比較(jiao)(jiao)長(chang)的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)子(zi)(zi)。尾段(duan)(duan)是(shi)靠近后(hou)保險杠的(de)(de)(de)部分,尾段(duan)(duan)上(shang)一般有(you)(you)一個比較(jiao)(jiao)大的(de)(de)(de)消音器。排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)可以讓發動(dong)(dong)機(ji)做功產(chan)生(sheng)的(de)(de)(de)廢(fei)氣(qi)(qi)(qi)(qi)(qi)(qi)排(pai)(pai)到大氣(qi)(qi)(qi)(qi)(qi)(qi)中(zhong),并且可以降低排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)過(guo)程中(zhong)產(chan)生(sheng)的(de)(de)(de)噪音。
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