一、引言 内燃机燃烧室的内壁由于同温度周期性变化的燃气相接触,也呈现着周期性的温度变化。但是壁面的温度振幅要比燃气温度振幅小得多,并且同换热系数α_g有关,α_g越大,壁温振幅也越大。 对于往复式内燃机,已有一些作者应用薄膜热电偶测定了壁面的瞬态温度,但对于旋转活塞发动机(简称转子机),尚未见于文献报道。在本文中, I. INTRODUCTION The inner wall of the combustion chamber of a combustion engine is also exposed to periodic changes in temperature due to contact with the gas periodically changing in temperature. However, the wall temperature amplitude is much smaller than the gas temperature amplitude and is related to the heat transfer coefficient α_g. The larger the α_g, the larger the wall temperature amplitude. For reciprocating internal combustion engines, some authors have used thin-film thermocouples to measure the transient temperature of wall surfaces. However, there has been no literature report on rotary piston engines (referred to as rotors). in the text,