通过分析，认为对涡流室柴油机燃烧系统进行优化匹配，可改善放热规律，从而提高经济性。

By analysis, optimum matching of combustion system of swirl chamber engine is believed to be capable of improving heat release rate and fuel economy.

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应用灰色系统理论研究了低负荷下进气涡流对TBD620 V 12柴油机燃烧过程的影响。

Using gray system theory, the influence of swirl inlet on the combustion process of TBD620V12 diesel engine under low load condition is studied.

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