排(pai)氣(qi)歧(qi)管,是與發動機氣(qi)缸(gang)體相連(lian)的(de),將各缸(gang)的(de)排(pai)氣(qi)集中起來導入排(pai)氣(qi)總管,帶有分歧(qi)的(de)管路。對它的(de)要求主要是,盡量減(jian)少排(pai)氣(qi)阻力,并避免各缸(gang)之間相互(hu)干擾。
排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)的(de)(de)(de)作用:排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)是(shi)(shi)(shi)連接每個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)(qi)缸的(de)(de)(de),最后(hou)排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)會匯集成(cheng)一(yi)根(gen)管(guan)(guan)(guan)(guan)子(zi),排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)可以讓汽缸內(nei)排(pai)(pai)(pai)(pai)出(chu)的(de)(de)(de)廢氣(qi)(qi)(qi)(qi)(qi)(qi)進入排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)。汽車都是(shi)(shi)(shi)有(you)排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)的(de)(de)(de),如(ru)果(guo)發動機(ji)有(you)四個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)(qi)缸,就有(you)四根(gen)排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan),如(ru)果(guo)發動機(ji)有(you)八個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)(qi)缸,就有(you)八個(ge)(ge)排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)。排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)也(ye)被稱為排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)頭段(duan),發動機(ji)的(de)(de)(de)排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)是(shi)(shi)(shi)由(you)三(san)段(duan)組成(cheng)的(de)(de)(de),分別是(shi)(shi)(shi)頭段(duan),中段(duan),尾段(duan)。中段(duan)是(shi)(shi)(shi)在底盤上(shang)的(de)(de)(de),中段(duan)是(shi)(shi)(shi)一(yi)根(gen)比較(jiao)長的(de)(de)(de)管(guan)(guan)(guan)(guan)子(zi)。尾段(duan)是(shi)(shi)(shi)靠近后(hou)保險杠的(de)(de)(de)部分,尾段(duan)上(shang)一(yi)般(ban)有(you)一(yi)個(ge)(ge)比較(jiao)大的(de)(de)(de)消(xiao)音(yin)器。排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)可以讓發動機(ji)做功產生的(de)(de)(de)廢氣(qi)(qi)(qi)(qi)(qi)(qi)排(pai)(pai)(pai)(pai)到大氣(qi)(qi)(qi)(qi)(qi)(qi)中,并且(qie)可以降(jiang)低排(pai)(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)(qi)過程中產生的(de)(de)(de)噪音(yin)。
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