本文通过试验,对点火过程的点火延迟、火焰传播及充填燃烧室阶段,进行了直观的判定和分析。并提出了点火器特性与发动机尺寸关系、点火器相对于推进剂表面距离关系的最佳点火尺寸及点火尺寸效应问题。文中还叙述了点火过程的各阶段与P=f(t)曲线中压力梯度变化的对应关系。 This article through the test, the ignition process of ignition delay, flame propagation and filling the combustion chamber stage, conducted an intuitive judgment and analysis. The optimal ignition size and ignition size effect of the relation between igniter characteristics and engine size and the relationship between igniter and propellant surface distance are put forward. The paper also describes the various stages of the ignition process and P = f (t) curve of the pressure gradient changes in the correspondence.