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对影响柴油机燃烧室零件传热损失大小和热负荷高低的若干因素进行了研究．利用有限元方法模拟计算了燃烧室零件温度场和热流密度分布，并进行了实验测量．针对改变结构设计和冷却方案的不同情况进行了热负荷和传热损失的对比分析，并分析了燃烧室壁温变化对柴油机性能的影响，提出了低散热柴油机燃烧室零件的优化设计思想和方案．
Several factors affecting the heat transfer losses and the heat load of diesel engine combustion chamber were studied. The finite element method was used to simulate the temperature field and the heat flux density distribution in the combustion chamber and the experimental measurements were carried out. Aiming at the different situations of changing the structure design and the cooling scheme, the heat load and the heat transfer loss are compared and analyzed, and the influence of the wall temperature variation on the performance of the diesel engine is analyzed. The optimization design idea and scheme of the low heat dissipation diesel engine combustion chamber are proposed .