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arsir
上校級會員

Hong Kong



Posts 3303

Posted - 15.07.2003 :  09:48:56  Show Profile  Visit %s1%'s Homepagearsir  Send %s1% an ICQ Messagearsir  Click to see %s1%'s MSN Messenger addressarsir Send arsir a Private Message  Reply with Quote
睇左幾集頭文字D,佢裡面所講渦輪引擎,同無點火系統,係咩黎架? 希望無講錯個名詞喇~~~

MT
上校級會員

Hong Kong



Posts 3326

Posted - 15.07.2003 :  10:17:06  Show Profile Send MT a Private Message  Reply with Quote

I try to give what I know...perhaps some other car lovers are more experienced in this.

Gas explosion occurs in cylinder. It needs the gas, air and a spark.

Old typed engines used natural aspiration (flow) of air into cylinders and turbo engines (or supercharge eqv.) use positive pressure to supply air making a more powerful combustion of gas and hence power.

無點火系統? Not sure....because a spark must be needed for explosion. Not sure it refers to electronic spark or not. Older models use separation of 2 platinum plated to generate a spark.

Other experts can help.






MT

棄保潛逃
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Ronny
初青會員

Australia



Posts 421

Posted - 15.07.2003 :  10:19:30  Show Profile Send Ronny a Private Message  Reply with Quote
渦輪引擎 = Turbo
無點火系統 = dunno how to explain....tell u when i see u next time
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JacKy Li
初哥級

Posts 2

Posted - 15.07.2003 :  11:06:15  Show Profile  Visit %s1%'s HomepageJacKy Li Send JacKy Li a Private Message  Reply with Quote
渦輪引擎等於有turbo o既引擎
無點火系統等於miss firing system這一種東西大多數都會在 rally car 中使用得到.原理是在死氣喉內的位置再次點火,令死氣喉內燃燒爆炸多一次來幫助廢氣排出,從而可以增加引擎的反應.



我好鍾意車架!!!!!
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gold
少校級會員

China



Posts 647

Posted - 15.07.2003 :  11:09:12  Show Profile  Send %s1% an ICQ Messagegold  Click to see %s1%'s MSN Messenger addressgold Send gold a Private Message  Reply with Quote
咳咳.....就等我解答你O既問題啦!!
第一.....就係專心考左牌先!!
哈哈~~講下笑,唔好嬲呀!!

9999千足純金金
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MT
上校級會員

Hong Kong



Posts 3326

Posted - 15.07.2003 :  11:51:05  Show Profile Send MT a Private Message  Reply with Quote
咦! 咁就唔算 "無點火" 喎!

爆完再爆多次,雙重點火,前後點火,連還點火....好 D 喎! haha....


thx Jacky...do u drive?



MT

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simonlai
中校級會員

Hong Kong



Posts 1436

Posted - 15.07.2003 :  12:13:37  Show Profile  Visit %s1%'s Homepagesimonlai  Send %s1% an ICQ Messagesimonlai  Click to see %s1%'s MSN Messenger addresssimonlai Send simonlai a Private Message  Reply with Quote
[updated:LAST EDITED ON Jul-15-03 AT 12:14 PM (GMT)]睇下係唔係咁樣啦 ... 我唔識架 .. 錯左唔關我事架 ... hahhaa!!


一.Turbo的原理:
渦輪增壓原理就是利用引擎運轉時所排出來的廢氣,用廢氣來轉動渦輪增壓器
中的排氣側轉子(Turbine),而排氣側轉子與進氣側轉子(compressor)是同軸異室(你可以想成是:兩者在同一"棒子"的不同兩邊),當Turbine轉子達到一定轉速時(約12000rpm左右)它帶動另一側的Compressor,使Compressor轉子引進外來的新鮮空氣,經過壓縮倒入進氣歧管內,所以囉,Turbo車的進氣是非自然方式,是經過"吸進來,再壓縮"所以空氣壓力是大於大氣壓力的。


二.偏時點火系統
英文譯作"Miss Firing System"。很多人都知道渦輪增壓的車子是由引擎的廢氣帶動渦輪把空氣輸入引擎增加馬力。但是因為比賽用的車輛跟改裝過的車輛往往是用特大號的渦輪來增加馬力,但也因為渦輪重量也增加的關係,造成引擎加速反應變的遲頓,因為較重的渦輪葉片須要更多時間與廢氣的能量來推動葉片的加速以及增壓,這就是所謂的渦輪遲滯(Turbo Lag)。

一般我們道路行駛的渦輪增壓車,因為都是使用較小的渦輪葉片造成渦輪遲滯的現像比較輕微而且只要習慣就好了,但是在分秒必爭的賽車場上這種現象是不被允許的, 三菱Mitsubishi(我想是他們開發的吧)開發的偏時點火系統主要的目的就是減少渦輪遲滯。

其實這系統只是在電腦上做手腳,在駕駛鬆油門或是沒有踩油門的時後比如說轉彎或減速的時後,電腦會命令汽車的供油系統射入大量的汽油進入引擎,但是不會點火,直接讓這些霧狀的汽油在未經過燃燒的情況經過引擎直接進入溫度極高(大約攝氏八百到九百度)的排氣系統。當霧狀的汽油進入之後會因為碰到高溫自動引爆。產生出來的壓力會衝向唯一的出口推動渦輪增壓器的葉片持續加速,讓車子即使在減速的情況下也能維持渦輪葉片的轉速(大約14000-20000rpm),使渦輪遲滯的現象消失,讓車子有渦輪增壓的馬力及自然進氣的反應。

另外高揮發性的汽油進入引擎及排氣系統的時後能有效降低引擎和渦輪增壓器的溫度。這就是為什麼渦輪增壓車需要燃燒很濃的油氣, 雖然造成耗油但會降低渦輪增壓器的高溫,增加引擎耐用度。


hahhaa ... 好長好長喔 ..
我而家好悶好悶喔 (等食飯 ..) ~~~~
><

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Handy
中校級會員



Posts 1310

Posted - 15.07.2003 :  12:15:04  Show Profile Send Handy a Private Message  Reply with Quote
[updated:LAST EDITED ON Jul-15-03 AT 12:15 PM (GMT)].........................
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gold
少校級會員

China



Posts 647

Posted - 15.07.2003 :  12:16:06  Show Profile  Send %s1% an ICQ Messagegold  Click to see %s1%'s MSN Messenger addressgold Send gold a Private Message  Reply with Quote
播音,返左O黎啦??

9999金金
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Handy
中校級會員



Posts 1310

Posted - 15.07.2003 :  12:19:16  Show Profile Send Handy a Private Message  Reply with Quote
[updated:LAST EDITED ON Jul-15-03 AT 12:19 PM (GMT)]Haha..Simon, you are faster than me...2 minutes!!
I just want to post the details exactly same as you!
Now I kill my post already!
Anyway, Thank for arsir asking because I also learn a lot from this post!
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simonlai
中校級會員

Hong Kong



Posts 1436

Posted - 15.07.2003 :  12:19:54  Show Profile  Visit %s1%'s Homepagesimonlai  Send %s1% an ICQ Messagesimonlai  Click to see %s1%'s MSN Messenger addresssimonlai Send simonlai a Private Message  Reply with Quote
未呀 .. 未呀 ...
我諗你地最快下星期先至見到我啦 ~~~
不過我一得閒就會出現架啦 ~~~
hahahaa ....

我而家響韓國o既天安工場(SKC (KOERA) CO.,LTD.)
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Handy
中校級會員



Posts 1310

Posted - 15.07.2003 :  12:21:01  Show Profile Send Handy a Private Message  Reply with Quote
Simon ! How about the Korean :94> ?
Are they delicious?
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simonlai
中校級會員

Hong Kong



Posts 1436

Posted - 15.07.2003 :  12:24:25  Show Profile  Visit %s1%'s Homepagesimonlai  Send %s1% an ICQ Messagesimonlai  Click to see %s1%'s MSN Messenger addresssimonlai Send simonlai a Private Message  Reply with Quote
[updated:LAST EDITED ON Jul-15-03 AT 12:24 PM (GMT)]haaaahaaa ...
唔講你地唔知呀 ~~
原來韓國佬唔食雞架 .. (佢地話食雞好 cheap 喎 ...)
所以呢邊d雞淨係用黎煲湯架咋 ... (除左另一樣用途之外 ... hahhaaaa)
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keikei
初哥級

Posts 29

Posted - 15.07.2003 :  19:01:17  Show Profile  Visit %s1%'s Homepagekeikei Send keikei a Private Message  Reply with Quote
Arsir, Simon同Jacky講得好詳細,唔駛問我啦下嘛!
我半桶水咋!你問我點飛…架車點keep…levin、opel、
civic點改我就教到你!一些理論既野,我唔識講!
我只識明白,唔識表達!
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B.Hall
上校級會員

Hong Kong



Posts 3471

Posted - 15.07.2003 :  21:01:42  Show Profile Send B.Hall a Private Message  Reply with Quote
播音,好詳盡喎!
雖然我都用緊架TURBO車,但真係無你咁清楚。
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arsir
上校級會員

Hong Kong



Posts 3303

Posted - 16.07.2003 :  12:22:10  Show Profile  Visit %s1%'s Homepagearsir  Send %s1% an ICQ Messagearsir  Click to see %s1%'s MSN Messenger addressarsir Send arsir a Private Message  Reply with Quote
多謝哂大家既分享呀~~~
我會慢慢研究下架喇~~~~
唔該哂有reply 我既人呀~~~
令我對車又有多d 認識喇~~~
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