摘要内燃凿岩机是一种用冲击活塞代替传统缸盖并由冲击活塞输出冲击功的特种内燃机.由于工作原理的特殊性和冲击活塞位移规律的测量难度,其放热率的分析研究,在国内外尚属空白.本文提出了一种实测压力与电算数据相结合的方法,首次得到了内燃凿岩机的放热率,为进一步认识和分析这一特种内燃机的燃烧过程,为燃烧过程的模拟计算提供了重要数据. Abstract Internal combustion rock drill is a kind of special internal combustion engine which replaces the traditional cylinder head with percussion piston and outputs impact energy by percussion piston.Due to the particularity of working principle and the measuring difficulty of the displacement law of percussion piston and its heat release rate analysis, It is a blank.This paper presents a method of combining actual measured pressure with computerized data, and obtains the heat release rate of the internal combustion rock drill for the first time. In order to further understand and analyze the combustion process of this special internal combustion engine and provide the simulation calculation for the combustion process The important data.