本文在一台单缸直喷式柴油机上，用快速响应表面热电偶首先测量了倒拖运行时缸玉清洁壁面不同位置的瞬态温度。接着，在经历一段时间的着火变工况运行后，当热电偶热结点覆盖有积炭层时，重复上述实验。结果表明，表面积炭后瞬态温度波动减弱，平均温度下降，由此计算得到的传热率峰值降低，峰值相位滞后。文章提出了一种定量计算燃烧室壁面积炭层厚度和积炭表面时态温度的方法，并依据测量数据给出了研究结果。 In this paper, a single cylinder direct injection diesel engine, with the rapid response surface thermocouple first measured when the jumper tumble cylinder jog clean the different positions of the transient temperature. Then, after a period of fire and variable operation, the above experiment was repeated when the thermocouple hot junction was covered with a carbon deposit. The results show that the transient temperature fluctuation is weakened and the average temperature is decreased after the surface carbon deposition. The peak value of the heat transfer rate decreases and the peak phase lags behind. In this paper, a method for quantitatively calculating the carbon layer thickness and the surface temperature of the carbon deposition on the combustion chamber wall is presented. The research results are given based on the measured data.