使用菱形驅動機構之同軸式史特靈引擎研究

Study of Rhombic-Drive Coaxial Piston-Displacer Stirling Engine

林育煌(Yu-Huang Lin)

指導教授 ： 鄭金祥

大同大學/工程學院/機械工程學系所/碩士(2005年)

摘要

本研究主要針對小型β型史特靈引擎進行機構設計以及加工製造，並推導理論模式，以進行引擎性能的輔助分析。β型之優點是輸出功率與體積的比值較α型與γ型為較小，具備易於攜帶的優點，特別適合作為小型引擎之機構。由於其與自由活塞型史特靈引擎亦同屬於同軸式活塞型，因此研究β型史特靈引擎也可以應用於未來自由活塞型史特靈引擎結構之設計。此外，本研究採用菱型驅動機構的構型，以便未來可朝向小型攜帶式高壓系統發展。本研究共製作完成三型原型引擎，並比較其性能。研究中嘗試將菱形驅動機構設計與熱力學模式分析結合，期望依實際尺寸及操作條件引擎的模擬分析，以整合實際的加工設計，提升引擎性能，製作出高效能之引擎。

關鍵字

史特靈引擎 ； 菱形驅動機構 ； 理論模擬 ； 加工製造

並列摘要

Design and manufacturing of the small-scale, β-type Stirling engines are of major concerns in this study. A theorectical model regarding the thermodynamic characteristics of the working medium in the Stirling engine has been developed to predict the cyclic variations in pressure and fluid velocity during operation. The β-type and the free-piston type Stirling engines are of the same kind with coaxial piston-displacer structure; therefore, the design of β-type Stirling engines can be partially further applied to the design of the free-piston in the future. The present study uses the rhombic-drive mechanism which is particularly valid to a small-scale, high pressure system. Three versions of the engine prototypes have been completed, and their relative performances have been tested. In accordance with theoretical model developed as well as the performance test data for the prototypes, improvement in the design phase for the Stirling engines is attempted.

並列關鍵字

Design ； Manufacturing ； Rhombic Drive ； Stirling Engine ； Theoretical Model

參考文獻

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