On the Uniformity of Combustion Gas Composition in the Exhaust Stroke in Diesel Engines

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概要

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• The measuring accuracy of scavenging efficiency by the gas sampling method depends upon mainly whether the sample represents the average composition of combustion gas or not. However, its evaluation has not been made sufficiently yet. In this paper, discussion is given about the experimental relation between the composition variation and the mass fraction of combustion gas discharged in the exhaust stroke, to evaluate the uniformity of combustion gas composition, and the following results are obtained. The measuring accuracies of the scavenging efficiency by the exhaust sampling method and the combustion chamber sampling method are estimated within errors of 1% and 2% respectively, for a sample during the last period of expansion stroke under a full operating load.

• 一般社団法人日本機械学会の論文

著者

• Gyakushi Nobuhiko

  Faculty Of Engineering Kanazawa University

関連論文

• Influence of Uneven Distribution of Combustion Gas in the Cylinder on the Combustion of a Diesel Engine : 3rd Report, Correlation between Speed of Combustion and Concentration Distribution of Combustion Gas
• Study on the Cycle-by-Cycle Variation in Diesel Engines
• On the Uniformity of Combustion Gas Composition in the Exhaust Stroke in Diesel Engines
• Influence of Uneven Distribution of Combustion Gas in the Cylinder on the Combustion of a Diesel Engine : 2nd Report, the Controlling Factors for the Formation of Concentration Distribution of Combustion Gas
• Fundamental Characteristics of Squish Flow in D. I. Diesel Engine

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