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对发动机热力过程的了解取决于实际测量技术的发展,本文介绍当前在测量工作中使用的方法的一些关键问题。其中包括提高气缸压力测量精度的方法;燃烧室受热零件表面瞬时温度的测量;气缸盖温度测量热电偶的布置;气缸内燃气温度的红外测试法和光谱分析法;排气温度波的瞬态测定技术及火焰传播速度的检测等。
The understanding of engine thermal processes depends on the development of actual measurement techniques. This article presents some of the key issues of the current methods used in measurement work. Including methods to improve the accuracy of cylinder pressure measurement; instantaneous temperature measurement of the surface of the heated part of the combustion chamber; arrangement of the thermocouple for the temperature measurement of the cylinder head; infrared measurement and spectral analysis of gas temperature in the cylinder; transient measurement of the exhaust gas temperature wave Detection of technology and flame propagation speed.