渦輪發動機 www.tool-tool.com

Bewise Inc. www.tool-tool.com Reference source from the internet.

渦輪發動機（Turbine engine，或常簡稱為Turbine）是一種利用旋轉的機件自穿過它的流體中汲取動能的發動機形式。經常在飛機與大型的船舶或車輛上看到其應用。

雖然渦輪發動機可能有許多不同的運作原理，但最簡單的渦輪型式可以只包含一個「轉子」（Rotor），例如一個帶有中心軸的扇葉，將此扇葉放置在流體中（例如空氣或水），流體通過時對扇葉施加的力量會帶動整個轉子開始轉動，進而得以從中心軸輸出軸向的扭力。風車與水車這類的裝置，可以說是人類最早發明的渦輪發動機原型。

依照不同的分類方式，渦輪發動機也可以分類成很多不同的型式。例如以燃燒室與轉子的位置是否在一起來區別，就存在有屬於外燃機一類的燃氣渦輪發動機（Gas turbine），與屬於內燃機的渦輪扇葉發動機（Turbofan）。

如果將渦輪發動機反過來運作，則會變成一種輸入力量之後可以將流體帶動的設備，例如壓縮機（compressor）與幫浦（pump，又稱為「泵」）。

有些渦輪發動機本身具有多組扇葉，其中部分是用於自流體汲取動力，部分是用於推動流體，二者不能混為一談。舉例來說在大部分的渦輪扇葉發動機與渦輪螺旋槳發動機中，位於燃燒室之前的扇葉實際的作用是用於加壓進氣，因此應被視為是一種壓縮機。真正的渦輪機部分是位於燃燒室後方的風扇，被燃燒後的排氣推動產生動力，再透過傳動軸將力量輸送至主扇葉（渦輪扇葉發動機）或螺旋槳（渦輪輪懸槳發動機）處，推動其運轉。

BW Bewise Inc. Willy Chen willy@tool-tool.com bw@tool-tool.com www.tool-tool.com skype:willy_chen_bw mobile:0937-618-190 Head &Administration Office No.13,Shiang Shang 2nd St., West Chiu Taichung,Taiwan 40356 TEL:+886 4 24710048 / FAX:+886 4 2471 4839 N.Branch 5F,No.460,Fu Shin North Rd.,Taipei,Taiwan S.Branch No.24,Sec.1,Chia Pu East Rd.,Taipao City,Chiayi Hsien,Taiwan

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Bewise Inc. www.tool-tool.com

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