The main objective of this thesis is to propose a method to overcome a limitation of combustion in lean-burn condition by applying the Amplified Ignition Source (AIS). In order to analyze the combustion efficiency, Constant volume combustion chamber (CVCC) was designed to conduct experiments such as flame visualization, combustion pressure and flame kernel. As the experimental and analysis conditions, Ignition device were applied to two models, C_type plug and J_type plug, and conducted the analysis and experiment with parameters of compressed pressure and air/fuel ratio. Experimental results showed that as the air/fuel ratio increased, the efficiency of C_type decreased, resulting in large combustion delay in the air/fuel ratio 1.4 area, and a misfire occurred without burning in the 1.6 area. However, in case of J_type, combustion occurred smoothly up to air/fuel ratio 1.6, and the combustion pressure was also higher than that of C_Type. In addition, In the case of coldflame expansion, J_Type was doubled at air/fuel ratio 1.0. air/fuel ratio, and the expansion of the coldflame increased as the air/fuel ratio increased. As the combustion process in the lean combustion area proceed the combustion efficiency of J-type improves.

本文的主要目的是提出一种方法，通过应用放大点火源（AIS）克服稀燃条件下燃烧的局限性。为了分析燃烧效率，设计了恒定容积燃烧室（CVCC）进行火焰可视化，燃烧压力和火焰核等实验。作为实验和分析条件，将点火装置应用于C_型塞和J_型塞两种模型，并对压缩压力和空燃比参数进行了分析和实验。实验结果表明，随着空燃比的增加，C_type的效率下降，导致空燃比1.4区域的燃烧延迟较大，并且在1.6区域未发生燃烧而没有点火。但是，如果是J_type，直至空燃比1.6时，燃烧平稳进行，燃烧压力也高于C_Type。另外，在冷焰膨胀的情况下，J_Type在空燃比1.0时增加了一倍。空气/燃料比，并且随着空气/燃料比的增加，冷焰的膨胀也增加。随着稀薄燃烧区中燃烧过程的进行，J型燃烧效率得到提高。