掃気効率測定における抽出ガスの量と時期の影響

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書誌事項

タイトル別名
  • The Influence of Volume and Period of Gas-Sampling upon the Accuracy of the Measurement of Scavenging Efficiency
  • ソウキコウリツ ソクテイ ニ オケル チュウシュツ ガス ノ リョウ ト ジキ ノ エイキョウ

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抄録

Two valves were specially installed on the cylinder head of an engine of two-stroke cycle, and gases were sampled through these valves, while this engine was operated continuously as of four-stroke cycle for this investigation. The result of this experiment are as follows : 1. The volume of sampled compression gas must amount to more than 20 percent of effective cylinder volume. 1'. If the volume cannot be over 20%, the sampling must take place near the top dead center. 2. The expansion gas must be extracted at the period just before scavenging, and its volume has to be small. 3. In addition, it was found that the relative charge equals 0.65 to 0.75. The author would like to express his sincere thanks to Dr.F. Nagao, professor of Mechanical Engineering, Kyoto University, for his valuable suggestions and guidances throughout this investigation.

収録刊行物

  • 日本機械学会誌

    日本機械学会誌 65 (522), 1044-1045, 1962

    一般社団法人 日本機械学会

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