Without changing the structure of measuring pressure apparatus, the error correcting of in-cylinder pressure curve and burning and heat release rate curve are researched in 1135 diesel engine.

不改变测压装置结构，在1135柴油机上进行了缸压曲线、燃烧放热率曲线误差修正研究。

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Then it analyzes the combustion characteristic of the LPG engine based on the curve of the heat release rate, and puts forward the measure of improving the performance of the LPG engine.

由生成的放热规律曲线分析了液化石油气发动机的燃烧特性，并提出了改善液化石油气发动机的性能的措施。

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