排(pai)氣歧(qi)(qi)管(guan),是與發動機氣缸(gang)(gang)體(ti)相連的,將各缸(gang)(gang)的排(pai)氣集中起來(lai)導(dao)入排(pai)氣總管(guan),帶有分(fen)歧(qi)(qi)的管(guan)路。對它的要求主要是,盡量減少排(pai)氣阻力(li),并(bing)避(bi)免各缸(gang)(gang)之間(jian)相互干擾。
排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)的(de)(de)(de)作(zuo)用(yong):排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)是(shi)連接每(mei)個(ge)氣(qi)(qi)(qi)缸的(de)(de)(de),最后排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)會匯(hui)集成一根(gen)管(guan)(guan)(guan)(guan)子,排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)可(ke)(ke)以(yi)讓汽(qi)缸內(nei)排(pai)(pai)(pai)出(chu)的(de)(de)(de)廢(fei)氣(qi)(qi)(qi)進入排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)。汽(qi)車都是(shi)有排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)的(de)(de)(de),如果(guo)發動(dong)(dong)機(ji)有四個(ge)氣(qi)(qi)(qi)缸,就有四根(gen)排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan),如果(guo)發動(dong)(dong)機(ji)有八(ba)個(ge)氣(qi)(qi)(qi)缸,就有八(ba)個(ge)排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)。排(pai)(pai)(pai)氣(qi)(qi)(qi)歧(qi)(qi)(qi)(qi)管(guan)(guan)(guan)(guan)也被稱為排(pai)(pai)(pai)氣(qi)(qi)(qi)頭段(duan)(duan),發動(dong)(dong)機(ji)的(de)(de)(de)排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)是(shi)由三(san)段(duan)(duan)組(zu)成的(de)(de)(de),分別是(shi)頭段(duan)(duan),中(zhong)(zhong)段(duan)(duan),尾段(duan)(duan)。中(zhong)(zhong)段(duan)(duan)是(shi)在(zai)底(di)盤上(shang)的(de)(de)(de),中(zhong)(zhong)段(duan)(duan)是(shi)一根(gen)比較(jiao)長的(de)(de)(de)管(guan)(guan)(guan)(guan)子。尾段(duan)(duan)是(shi)靠近后保(bao)險杠的(de)(de)(de)部分,尾段(duan)(duan)上(shang)一般(ban)有一個(ge)比較(jiao)大的(de)(de)(de)消音器。排(pai)(pai)(pai)氣(qi)(qi)(qi)管(guan)(guan)(guan)(guan)可(ke)(ke)以(yi)讓發動(dong)(dong)機(ji)做功產(chan)生(sheng)的(de)(de)(de)廢(fei)氣(qi)(qi)(qi)排(pai)(pai)(pai)到大氣(qi)(qi)(qi)中(zhong)(zhong),并且可(ke)(ke)以(yi)降(jiang)低排(pai)(pai)(pai)氣(qi)(qi)(qi)過(guo)程中(zhong)(zhong)產(chan)生(sheng)的(de)(de)(de)噪音。
豐田皇冠(guan)進(jin)出氣(qi)門雙(shuang)向智能(neng)(neng)正時可變系統(tong),使發(fa)動機的進(jin)氣(qi)效率、燃油經濟(ji)性(xing)、動力性(xing)能(neng)(neng)都有很大提(ti)高,馬(ma)力更加強勁。底(di)盤方面(mian),采(cai)用了四(si)輪全獨(du)立懸架,舒適性(xing)很好(hao)。外形(xing)有著完美的線(xian)條、內飾時尚。個性(xing)
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