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研究生:成庭皓
研究生(外文):Ting-hao Chen
論文名稱:異動行程引擎內活塞運動曲線與缸內壓力量測
論文名稱(外文):Measurements of the Inner Piston Motion and Cylinder Pressure of a Differential Stroke Internal Combustion Engine
指導教授:蔡得民
指導教授(外文):Der-Min Tsay
學位類別:碩士
校院名稱:國立中山大學
系所名稱:機械與機電工程學系研究所
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:2009
畢業學年度:97
語文別:中文
論文頁數:56
中文關鍵詞:米勒循環阿金森循環異動行程引擎
外文關鍵詞:Miller cycleDifferential stroke engineAtkinson cycle
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異動行程引擎應用阿金森循環,故其熱效率較使用奧圖循環及狄塞爾循環之引擎高,為了達成阿金森循環之基礎,即膨脹比大於壓縮比之目標,內活塞凸輪連桿機構被提出。本論文將建立異動行程引擎內活塞運動曲線量測系統,以及異動行程引擎缸內壓力量測系統。
為量測內活塞於各轉速下之運動,利用雷射及角度編碼器建立內活塞運動曲線量測系統,可量得內活塞之運動誤差。應用壓力計建立缸內壓力量測系統,可利用量測結果計算壓力時間圖及壓力體積圖。
最後,利用實際實驗驗證此量測系統,可了解此量測系統將是協助設計與製造異動行程引擎之有效工具。
The thermal efficiency of a differential stroke engine based on the Atkinson cycle is higher than that of engines with an Otto cycle or Diesel cycle. To fulfill the requirement of the expansion ratio that is greater than the compression ratio in the Atkinson cycle, a mechanism with an inner piston that can provide such a motion control in a differential stroke engine is needed. In order to measure both of the inner piston motion and the cylinder pressure of a differential stroke engine, this thesis is focused on building up a measurement system to inspect the design of a mechanism that achieves the motion needed in a differential stroke engine.
To obtain the inner piston motion in a differential stroke engine operated at a speed, the measurement system is equipped with a laser sensor and an angular encoder to identify the difference between the theoretical and experimental results. Also, to inspect the cylinder pressure, a pressure transducer is employed with the test bed so that both of the P-T diagram and P-V diagram can be calculated by using the measured result.
To demonstrate the effectiveness of the developed test bed, real experiments are performed. The developed measurement system has proved to be a useful tool during the developing processes of design and manufacture of differential stroke engines.
致謝 i
摘要 vi
Abstract vii
第一章 1
1-1 前言與研究背景 1
1-2 文獻回顧 1
1-3 研究目的與方法 6
1-4 論文架構 7
第二章 異動行程引擎與相關實驗介紹 8
2-1 廢氣再循環系統與循環變異量介紹 8
2-2 異動行程引擎介紹 9
第三章 模組化異動行程引擎量測平台之設計與建立 13
3-1模組化異動行程引擎量測平台之設計目標: 13
3-2 模組化異動行程引擎量測平台之建立 13
第四章 異動行程引擎內活塞運動曲線量測系統之建立 16
4-1 實驗源由 16
4-2 異動行程引擎內活塞運動曲線量測系統之重要性 18
4-3 硬體架構 18
4-4軟體架構 20
4-5異動行程引擎內活塞運動曲線量測 21
4-6 結果與討論 21
第五章 異動行程引擎缸內壓力量測系統之建立 27
5-1 實驗源由 27
5-2 異動行程引擎缸內壓力量測系統之重要性 27
5-3 硬體架構 28
5-4 軟體架構 29
5-5異動行程引擎非點火缸內壓力量測 30
5-6 結果與討論 30
第六章 結論與未來建議 34
6-1 異動行程引擎內活塞運動曲線量測 34
6-2 異動行程引擎缸內壓力量測實驗 36
6-3未來發展 37
參考文獻 39
附錄一 四行程引擎活塞運動量測 42
附錄二 異動行程引擎量測內活塞與理論活塞承載座之運動曲線 44
附錄三 異動行程引擎內活塞運動曲線量測 46
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