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研究生:葉恆良
研究生(外文):Heng-Liang Yeh
論文名稱:進氣道長度與膨脹室體積變化對轉子引擎性能的影響
論文名稱(外文):Study on the performance of rotary engine regarding the variation of intake length and expansion volume
指導教授:盧昭暉盧昭暉引用關係
學位類別:碩士
校院名稱:國立中興大學
系所名稱:機械工程學系所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:126
中文關鍵詞:迴旋式引擎進氣道共振腔膨脹室
外文關鍵詞:rotary engineintakeresonanceexpansion volume
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本研究是以Diamond公司所生產之IAE 50R單缸迴旋式燃油噴射引擎為實驗對象,目的乃是探討引擎進氣道變化及進氣道加裝共振腔對引擎之動力輸出與性能的影響。藉由一具294cc的飛行器引擎,在使用各種不同長度進氣道的條件下,對引擎所能輸出的最大轉速及馬力有一定的影響,藉此找出該具引擎的最佳進氣道長度;此外,在進氣道因空間限制的前提下,進氣道被迫只能侷限某個長度以下時,在這種條件下,引擎所能輸出的最大轉速與馬力等相關性能會隨之受到影響,在進氣系統加裝一個共振腔,配合Helmholtz的方程式,設計出各種共振腔各部位的尺寸,利用改變共振腔的體積與幾何形狀,可以尋求增加引擎轉速與輸出馬力的最大值,藉此降低進氣長度變化所帶來的影響,在實驗結果的驗証下,此一簡單的裝置可以明顯的增加引擎轉速與馬力,以達到對引擎所需的輸出性能要求,這樣的進氣系統修改所需的費用極低,但卻可獲得很明顯的功效,是十分可行的方式。
This research is to regard the rotary engine of fuel jet of single cylinder of Diamond Company IAE 50R produced as experimental subjects, purpose to search the variation of engine intake length and the intake including resonance to influence the engine performance. Using the 294cc rotary engine, it can influence the maximum rpm and power of the engine output under the terms of using all kinds of length intake. Then it can find out the best length of intake of the rotary engine. In addition, under the terms of space limit of intake, it can influence the maximum rpm and power of the engine output when the intake is forced to limit on a certain length. To install a resonance in the intake system, according to the equation of Helmholtz, it can design the all kinds of size of the resonance. Using to change the volume and geometirc form of the resonance, it can find out the maximum rpm and horsepower of engine output in order to reduce the influence of the variation of engine intake length. Under the verification of the experimental result, this simple device can increase the rpm and horsepower of the rotary engine obviously to achieve the output performance that the engine requires to supply. Such the revisal of intake need the lower cost but it can obtain very obvious efficiency. It is a very feasible way.
目次 頁碼
誌謝…………………………………………………………………… i
中文摘要………………………………………………………………ii
英文摘要 ……………………………………………………………iii
目次……………………………………………………………………iv
表目次 ………………………………………………………………vii
圖目次………………………………………………………………viii
第一章 緒論……………………………………………………………1
1.1研究動機………………………………………………………1
1.2研究目的………………………………………………………2
第二章 文獻回顧………………………………………………………5
2.1實驗分析………………………………………………………6
2.2一維壓力波模式…………………………………………… 9
2.3多維數值模擬……………………………………………… 12
第三章 實驗設備與實驗步驟…………………………………………16
3.1實驗儀器與設備…………………………………………… 16
3.2實驗架設…………………………………………………… 22
3.3實驗參數…………………………………………………… 22
3.3.1操作變因……………………………………………23
3.3.2輸出數據……………………………………………23
3.4實驗步驟及方法……………………………………………23
3.4.1實驗前準備動作……………………………………23
3.4.2變化進氣道長度實驗步驟…………………………24
3.4.3不同膨脹室之進氣道實驗步驟……………………25
第四章 實驗原理與理論分析……………………………………… 51
4.1引擎性能公式………………………………………………51
4.2進氣道長度改變對引擎的影響……………………………53
4.3進氣道上加裝膨脹室對引擎的影響………………………57
第五章 結果與討論………………………………………………… 64
5.1進氣道長度變化對引擎性能的影響………………………64
5.2膨脹室在固定長度但直徑變化下對引擎性能的影響……70
5.3膨脹室在固定直徑長度變化下對引擎性能的影響……74
第六章 結論與未來研究方向……………………………………… 117
6.1結論…………………………………………………………117
6.2未來研究方向………………………………………………118
參考文獻……………………………………………………………120
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