排氣歧管(guan),是與發(fa)動機氣缸體(ti)相連的(de)(de),將各缸的(de)(de)排氣集(ji)中起(qi)來導入排氣總管(guan),帶有分歧的(de)(de)管(guan)路。對它的(de)(de)要求主要是,盡量減(jian)少排氣阻力,并避免各缸之間相互干擾。
排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)的作(zuo)用(yong):排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)是(shi)連接每個(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang)的,最后(hou)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)會(hui)匯集成(cheng)一(yi)根(gen)管(guan)(guan)(guan)(guan)(guan)子(zi),排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)可(ke)以讓汽缸(gang)內排(pai)出的廢氣(qi)(qi)(qi)(qi)(qi)進入排(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)。汽車都是(shi)有(you)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)的,如果發動(dong)機有(you)四個(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang),就(jiu)有(you)四根(gen)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan),如果發動(dong)機有(you)八個(ge)氣(qi)(qi)(qi)(qi)(qi)缸(gang),就(jiu)有(you)八個(ge)排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)。排(pai)氣(qi)(qi)(qi)(qi)(qi)歧管(guan)(guan)(guan)(guan)(guan)也(ye)被稱為排(pai)氣(qi)(qi)(qi)(qi)(qi)頭(tou)段(duan)(duan)(duan)(duan),發動(dong)機的排(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)是(shi)由三段(duan)(duan)(duan)(duan)組(zu)成(cheng)的,分別是(shi)頭(tou)段(duan)(duan)(duan)(duan),中(zhong)段(duan)(duan)(duan)(duan),尾段(duan)(duan)(duan)(duan)。中(zhong)段(duan)(duan)(duan)(duan)是(shi)在底盤(pan)上的,中(zhong)段(duan)(duan)(duan)(duan)是(shi)一(yi)根(gen)比較長的管(guan)(guan)(guan)(guan)(guan)子(zi)。尾段(duan)(duan)(duan)(duan)是(shi)靠近后(hou)保(bao)險杠(gang)的部分,尾段(duan)(duan)(duan)(duan)上一(yi)般(ban)有(you)一(yi)個(ge)比較大的消音(yin)器。排(pai)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)(guan)可(ke)以讓發動(dong)機做功產(chan)生的廢氣(qi)(qi)(qi)(qi)(qi)排(pai)到(dao)大氣(qi)(qi)(qi)(qi)(qi)中(zhong),并且(qie)可(ke)以降低排(pai)氣(qi)(qi)(qi)(qi)(qi)過程中(zhong)產(chan)生的噪音(yin)。
凱迪拉克加(jia)長版是國外改裝公司(si)在(zai)原(yuan)來(lai)凱迪拉克的基礎(chu)上加(jia)長的,原(yuan)車型是5.7米。改裝后是5.9米,凱迪拉克加(jia)長版官方名(ming)稱(cheng)叫做凱迪拉克總(zong)統一(yi)號,也(ye)可以叫首相一(yi)號。
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