(日韓汽車系列)轉子引擎(Rotary Engine) - 汽車討論
By Cara
at 2009-02-06T00:55
at 2009-02-06T00:55
Table of Contents
一般也稱為RE引擎的轉子引擎,是現今使用於汽車的汽油引擎中,除了往復式引擎(Reciprocating Engine)之外的另一種引擎運轉型式。轉子引擎至今其實共發展出多種型式,不過目前已成為Mazda招牌的轉子引擎,則是其中被稱為「Wankel Type」的版本,這也是目前最具代表性的轉子型式引擎,而這個名稱則是來自於發明人Wankel博士之名。
相較於往復式引擎是利用活塞上下運動的原理來進行「進氣」、「壓縮」、「燃爆」以及「排氣」四個行程,轉子引擎則是仰賴三角狀的轉子以偏心迴轉的方式繞行轉子外殼來達成「進氣壓縮」、「燃爆」和「排氣」三個動作。由於轉子每迴轉一次,引擎就可進行三次爆發,因此轉子引擎可以產生相當密集且強大的扭力輸出。
不過在動力強勁之餘,由於轉子引擎有許多零件都更容易耗損,而且零件的耗損速度也比起往復式引擎更快,再加上爆炸時間短所導致廢氣的產生量相對增加,因此較高的維修代價與較差的油耗、廢排,也都是轉子引擎不易克服的缺點。
Mazda是車壇上最先將轉子引擎導入量產的品牌,該廠旗下的RX-8則是現今唯一搭載轉子引擎的市售車。 |
不過在動力強勁之餘,由於轉子引擎有許多零件都更容易耗損,而且零件的耗損速度也比起往復式引擎更快,再加上爆炸時間短所導致廢氣的產生量相對增加,因此較高的維修代價與較差的油耗、廢排,也都是轉子引擎不易克服的缺點。
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