排(pai)(pai)氣(qi)(qi)(qi)歧管,是(shi)與發動機氣(qi)(qi)(qi)缸體相(xiang)連的(de),將各(ge)缸的(de)排(pai)(pai)氣(qi)(qi)(qi)集(ji)中起來導入排(pai)(pai)氣(qi)(qi)(qi)總管,帶有分歧的(de)管路。對它(ta)的(de)要求主要是(shi),盡量減少排(pai)(pai)氣(qi)(qi)(qi)阻力,并(bing)避免各(ge)缸之間相(xiang)互(hu)干擾(rao)。
排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)的(de)(de)作(zuo)用:排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)是連(lian)接(jie)每個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang)的(de)(de),最后(hou)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)會匯集成一根管(guan)(guan)(guan)(guan)(guan)子,排(pai)(pai)(pai)氣(qi)(qi)(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)(qi)(qi)進入排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)。汽車都是有排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)的(de)(de),如(ru)果發動機(ji)有四個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang),就有四根排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan),如(ru)果發動機(ji)有八(ba)個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang),就有八(ba)個(ge)(ge)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)。排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)(guan)(guan)(guan)(guan)也被稱為排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)頭(tou)段(duan)(duan),發動機(ji)的(de)(de)排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)是由三段(duan)(duan)組成的(de)(de),分(fen)別(bie)是頭(tou)段(duan)(duan),中(zhong)(zhong)段(duan)(duan),尾段(duan)(duan)。中(zhong)(zhong)段(duan)(duan)是在底(di)盤上(shang)(shang)的(de)(de),中(zhong)(zhong)段(duan)(duan)是一根比(bi)較(jiao)長的(de)(de)管(guan)(guan)(guan)(guan)(guan)子。尾段(duan)(duan)是靠近后(hou)保險杠(gang)的(de)(de)部分(fen),尾段(duan)(duan)上(shang)(shang)一般有一個(ge)(ge)比(bi)較(jiao)大的(de)(de)消音器(qi)。排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)可以讓發動機(ji)做功產生(sheng)的(de)(de)廢氣(qi)(qi)(qi)(qi)(qi)排(pai)(pai)(pai)到大氣(qi)(qi)(qi)(qi)(qi)中(zhong)(zhong),并且可以降(jiang)低排(pai)(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)過程中(zhong)(zhong)產生(sheng)的(de)(de)噪音。
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