機械增壓和渦輪增壓 - 歐洲車
By Daph Bay
at 2008-04-22T23:34
at 2008-04-22T23:34
Table of Contents
推 reallocust:Nissan GT-R的增壓器就特別一點,為了不讓低速時廢氣推 04/22 11:17
→ reallocust:不動渦輪,就多了一顆電磁馬達強制驅動渦輪,到廢氣衝力 04/22 11:18
→ reallocust:足以推動渦輪後即關閉馬達 04/22 11:19
→ reallocust:我是挺期待有一天真能做到Turbolag消失的一天,舉凡雙渦 04/22 11:22
→ reallocust:輪,VTG變幾何渦輪,甚至是電磁馬達渦輪.科技進步很快 04/22 11:23
→ reallocust:忘了提TSI雙增壓... 04/22 11:25
關於上面r大提到的減少turbolag的渦輪
我只有看過雜誌文章介紹保時捷的那種方式(名字可能記不準確了,所以不提以免見笑XD)
渦輪簡單講就是長得像風車那樣(當然其設計一定比十元商店的風車複雜很多)
一般來說空氣會和渦輪的平面成九十度吹入
不敢說所有的渦輪都是這樣,至少飛機是這樣,發電廠的好像也是
硬要說的話,風力發電的那個很大的風車作用也和渦輪類似
在引擎低轉數的情況下廢氣排量小
所以推動渦輪會比較費力,渦輪也會轉得很慢不符合需求
當然這是在角度是九十度的情況下
若是改變角度,從側面吹進去的話,那麼很輕易的就能使渦輪轉動
便改善了這個問題
但其實我對這個講法自己也有點懷疑
因為我曾經看過渦輪的照片是從側面吹入(固定住的,不會像保時捷的會改變角度)
所以可能得請對保時捷很有研究的版友深入介紹
→ clkdtm32:偏時點火系統? 04/22 16:00
剛好我也曾經看過偏時點火系統的介紹文章
要裝偏時點火系統,就一定得是渦輪車才行
一般來說
當汽缸充滿空氣和燃料後會開始壓縮
壓縮到最小的體積時點火爆炸
爆炸的威力會推動活塞,這便是汽車動力的來源
之前寫的有錯誤
所以改為DYE大大所講的(非常感謝DYE大的指正)
空氣與燃料在氣缸裡壓縮後不點火
當空氣與燃料在排放廢氣的那個時後被當作廢氣排出
當預遇到高溫的排氣頭段時爆炸
這時候廢氣的速率會遠遠大過原本未偏時點火排放的廢氣
所以在低排氣量時就能有效推動渦輪(而且會看到排氣管噴火)
不過這樣的方式很傷引擎和渦輪
因為爆炸的衝力和火焰都會傷害渦輪
渦輪本來就不是設計成要和汽缸一樣強壯的
以上是自己以前從雜誌或網路看來的
有記錯或說錯還請指正,謝謝
推 kenjack:所以渦輪是裝在排氣的頭段 是這樣嗎? 我都以為是裝在進氣 04/22 17:05
推 reallocust:渦輪一般是裝在排氣頭段沒錯,但渦輪和增壓器不一樣地方 04/22 18:10
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