BMW 直六引擎經典之處 ? - BMW
By Ula
at 2011-08-09T02:07
at 2011-08-09T02:07
Table of Contents
※ 引述《coloru (感謝C大借po)》之銘言:
: 常常聽大家說 BMW 的直六引擎很經典
: 不知道板友可不可以具體的描述
: 究竟它的經典之處在哪?
: 開過某台搭載直六引擎的 BMW, 就是覺得好開
: 但是不會形容 ~~
: 先謝謝大家的解惑
直六經典 我來說一下好了
首先直六是先天平衡 不是直四 V6可以比擬的
直四會震動 一般有開過頭又大的就知道 怠速的時候可以感覺到輕微的抖動
V6需要搭配反向平衡軸 才能抑制抖動
直六就完全不需要這些 怠速時極為安靜
各位若是有機會的話 把引擎蓋打開看直四發動的情形
你會看到直四一直扭一直抖 直到運轉時才不會這麼厲害
直六完全不會這樣
BMW的直六平順的感覺 運轉時有渦輪引擎(turbine)感覺
這是他最大的特色
可以跟直六拼運轉精緻度的就是對臥引擎
對臥引擎也是先天平衡 最有名的就是保時捷 subaru
但因為歧管的不等長 (有請版友補正) 所以subaru無法像bmw那樣有turbine的感覺
還有直六維修不會比直四困難 V6就相當複雜
bmw直六就相對有點複雜 他為了增加地速扭力 所以在進氣上面做了很多手腳
M54進氣歧道有一個閥體叫做DISA
BMW將進氣閥提早打開 使得廢氣進入進氣歧道產生壓力
而這股壓力藉由DISA的控制轉而進入下一點火氣缸 增加進氣流速
如此廢氣再利用進而增大低速扭力 克服直六低速扭力不足的問題
市面上能夠買到直六的引擎不多了 除了BMW 另一家就是VOLVO
VOLVO 有做 Turbo inlin 6
有機會真的想要試一下
--
: 常常聽大家說 BMW 的直六引擎很經典
: 不知道板友可不可以具體的描述
: 究竟它的經典之處在哪?
: 開過某台搭載直六引擎的 BMW, 就是覺得好開
: 但是不會形容 ~~
: 先謝謝大家的解惑
直六經典 我來說一下好了
首先直六是先天平衡 不是直四 V6可以比擬的
直四會震動 一般有開過頭又大的就知道 怠速的時候可以感覺到輕微的抖動
V6需要搭配反向平衡軸 才能抑制抖動
直六就完全不需要這些 怠速時極為安靜
各位若是有機會的話 把引擎蓋打開看直四發動的情形
你會看到直四一直扭一直抖 直到運轉時才不會這麼厲害
直六完全不會這樣
BMW的直六平順的感覺 運轉時有渦輪引擎(turbine)感覺
這是他最大的特色
可以跟直六拼運轉精緻度的就是對臥引擎
對臥引擎也是先天平衡 最有名的就是保時捷 subaru
但因為歧管的不等長 (有請版友補正) 所以subaru無法像bmw那樣有turbine的感覺
還有直六維修不會比直四困難 V6就相當複雜
bmw直六就相對有點複雜 他為了增加地速扭力 所以在進氣上面做了很多手腳
M54進氣歧道有一個閥體叫做DISA
BMW將進氣閥提早打開 使得廢氣進入進氣歧道產生壓力
而這股壓力藉由DISA的控制轉而進入下一點火氣缸 增加進氣流速
如此廢氣再利用進而增大低速扭力 克服直六低速扭力不足的問題
市面上能夠買到直六的引擎不多了 除了BMW 另一家就是VOLVO
VOLVO 有做 Turbo inlin 6
有機會真的想要試一下
--
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BMW
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