排氣(qi)歧管,是(shi)與發動機氣(qi)缸體相連(lian)的,將各缸的排氣(qi)集(ji)中起來導入排氣(qi)總管,帶有分(fen)歧的管路。對它的要求主要是(shi),盡(jin)量減少排氣(qi)阻(zu)力,并避(bi)免各缸之(zhi)間相互干擾。
排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)的(de)(de)作用:排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)是(shi)連接每個(ge)氣(qi)(qi)缸(gang)(gang)的(de)(de),最(zui)后排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)會(hui)匯集成(cheng)一根(gen)(gen)管(guan)(guan)(guan)子,排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)可以讓汽缸(gang)(gang)內排出(chu)的(de)(de)廢(fei)(fei)氣(qi)(qi)進入排氣(qi)(qi)管(guan)(guan)(guan)。汽車都是(shi)有(you)(you)排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)的(de)(de),如(ru)果發(fa)動機有(you)(you)四個(ge)氣(qi)(qi)缸(gang)(gang),就(jiu)有(you)(you)四根(gen)(gen)排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan),如(ru)果發(fa)動機有(you)(you)八(ba)個(ge)氣(qi)(qi)缸(gang)(gang),就(jiu)有(you)(you)八(ba)個(ge)排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)。排氣(qi)(qi)歧(qi)(qi)管(guan)(guan)(guan)也被稱(cheng)為排氣(qi)(qi)頭段(duan),發(fa)動機的(de)(de)排氣(qi)(qi)管(guan)(guan)(guan)是(shi)由三段(duan)組(zu)成(cheng)的(de)(de),分(fen)別是(shi)頭段(duan),中(zhong)(zhong)段(duan),尾(wei)段(duan)。中(zhong)(zhong)段(duan)是(shi)在底盤上的(de)(de),中(zhong)(zhong)段(duan)是(shi)一根(gen)(gen)比較(jiao)(jiao)長的(de)(de)管(guan)(guan)(guan)子。尾(wei)段(duan)是(shi)靠近后保(bao)險杠的(de)(de)部(bu)分(fen),尾(wei)段(duan)上一般有(you)(you)一個(ge)比較(jiao)(jiao)大(da)的(de)(de)消音器。排氣(qi)(qi)管(guan)(guan)(guan)可以讓發(fa)動機做功產(chan)(chan)生(sheng)的(de)(de)廢(fei)(fei)氣(qi)(qi)排到(dao)大(da)氣(qi)(qi)中(zhong)(zhong),并且(qie)可以降低排氣(qi)(qi)過(guo)程中(zhong)(zhong)產(chan)(chan)生(sheng)的(de)(de)噪音。
大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)POLO(波羅)勁(jing)(jing)情、勁(jing)(jing)取(qu)作(zuo)為上(shang)海(hai)大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)今(jin)年全新推出的(de)(de)(de)(de)兩(liang)款(kuan)A0級(ji)轎(jiao)車,是上(shang)海(hai)大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)設計(ji)團(tuan)隊(dui)(dui)(dui)繼成功設計(ji)了PASSAT領馭后推出的(de)(de)(de)(de)兩(liang)款(kuan)力作(zuo),其中POLO勁(jing)(jing)情是根據中國(guo)市(shi)(shi)場獨特審美需求與(yu)德國(guo)大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)POLOGP同(tong)步(bu)開發的(de)(de)(de)(de)一款(kuan)兩(liang)廂車型(xing),而POLO勁(jing)(jing)取(qu)則完全是由上(shang)海(hai)大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)設計(ji)團(tuan)隊(dui)(dui)(dui)獨立設計(ji)、開發的(de)(de)(de)(de)一款(kuan)三廂車型(xing)。大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)POLO(波羅)是上(shang)海(hai)大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)開發團(tuan)隊(dui)(dui)(dui)與(yu)德國(guo)狼堡(bao)同(tong)步(bu)開發的(de)(de)(de)(de)又一杰(jie)作(zuo)。 2003 年,當遠在德國(guo)狼堡(bao)的(de)(de)(de)(de) POLO GP 項目啟動(dong)時,上(shang)海(hai)大(da)(da)(da)(da)(da)眾(zhong)(zhong)(zhong)(zhong)(zhong)的(de)(de)(de)(de)設計(ji)團(tuan)隊(dui)(dui)(dui)也開始醞釀針對中國(guo)市(shi)(shi)場的(de)(de)(de)(de)新 POLO 項目并參(can)與(yu)了新一代 POLO 基(ji)本開發方案的(de)(de)(de)(de)討(tao)論。
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