排氣(qi)歧管,是與發動機(ji)氣(qi)缸體相連的,將各缸的排氣(qi)集中起來(lai)導入排氣(qi)總管,帶有分歧的管路。對它的要求主要是,盡量減少排氣(qi)阻力(li),并避免各缸之間相互干擾。
排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)的(de)作用:排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)是(shi)(shi)(shi)連接每個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)缸的(de),最后排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)會(hui)匯集成一(yi)(yi)根(gen)管(guan)子,排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)可以讓汽缸內排(pai)(pai)出(chu)的(de)廢氣(qi)(qi)(qi)(qi)(qi)進(jin)入排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)。汽車都是(shi)(shi)(shi)有(you)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)的(de),如(ru)果發(fa)動(dong)機(ji)有(you)四個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)缸,就有(you)四根(gen)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan),如(ru)果發(fa)動(dong)機(ji)有(you)八(ba)個(ge)(ge)氣(qi)(qi)(qi)(qi)(qi)缸,就有(you)八(ba)個(ge)(ge)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)。排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)歧(qi)管(guan)也被(bei)稱為排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)頭(tou)段(duan)(duan),發(fa)動(dong)機(ji)的(de)排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)是(shi)(shi)(shi)由三(san)段(duan)(duan)組(zu)成的(de),分別是(shi)(shi)(shi)頭(tou)段(duan)(duan),中(zhong)段(duan)(duan),尾(wei)(wei)段(duan)(duan)。中(zhong)段(duan)(duan)是(shi)(shi)(shi)在底盤上(shang)的(de),中(zhong)段(duan)(duan)是(shi)(shi)(shi)一(yi)(yi)根(gen)比(bi)較(jiao)長的(de)管(guan)子。尾(wei)(wei)段(duan)(duan)是(shi)(shi)(shi)靠近后保險(xian)杠的(de)部分,尾(wei)(wei)段(duan)(duan)上(shang)一(yi)(yi)般有(you)一(yi)(yi)個(ge)(ge)比(bi)較(jiao)大(da)的(de)消音器。排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)可以讓發(fa)動(dong)機(ji)做功產生的(de)廢氣(qi)(qi)(qi)(qi)(qi)排(pai)(pai)到大(da)氣(qi)(qi)(qi)(qi)(qi)中(zhong),并且可以降低排(pai)(pai)氣(qi)(qi)(qi)(qi)(qi)過程中(zhong)產生的(de)噪音。
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