噴射供油系統概論 - 機車
By Tracy
at 2008-07-07T05:19
at 2008-07-07T05:19
Table of Contents
電子噴油系統 Electronic Fuel Injection (上)
[email protected]
一、總概念:
如果說,傳統化油器的主角是油路
那,噴射引擎的主角則改成了以「空氣進氣量」為主
直接以進入的空氣量來決定噴油量,所以會得到比傳統化油器更為準確的空燃比
二、基本作動原理:
在開始說明前,搬出個老文章來複習一下:#185MZY3j (biker)
●14010 m10 4/28 herejia □ [討論] 化油器 (from wikipedia.org)
++++++
原理
化油器是利用白努力原理:當氣體流動的越快,他的static pressure(靜態壓力)便越
低而dynamic pressure(動態壓力)則越高。而節流閥(由油門控制)不是直接控制燃油的流
量而是控制在引擎運轉時被吸入的空氣流量。而吸入空氣的速度便產生一個壓力,利用這
個壓力來控制燃油進入引擎的多寡。
++++++
而電子噴射系統的話,理念也是差不多,油門依然是控制節流閥的開關,
而流進的空氣會推動一個「空氣流量計」,讓車上主電腦(主控制器)得知現在的空氣流量
再利用工程師植入的動力曲線圖給出最配合空氣量的噴油量,以達到最佳的空氣燃料比值
--
腦袋瓜卡住了...Q_@
線路圖畫兩個小時畫不出來...>"<
今天先打這樣的基本概念好了
--
EV4魂不死!!
SV-max十年不換車計畫啟動!!
--
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機車
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