燃料噴霧の火花点火

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  • Spark Ignition of a Fuel Spray
  • ネンリョウ フンム ノ ヒバナ テンカ

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Spark ignition of a fuel spray injected into the atmosphere from a Pintle nozzle has been studied, and it has been found that the ignitibility decreases almost linearly with the time after the end of injection, and that it decreases with increasing distance from the core of the spray cone. From these facts and theoretical considerations, it comes to the conclusion that the ignitibility depends on the total surface area of fuel drop1ets which disperse into a definite volume of air around the spark gap, and the ignition phenomena are found to be determined substantially by physical factors such as atomization and dispersion. Ignitibi1ity of a fuel spray by repeated sparks has been found to bear out the calculated results on the basis of probability considerations. In most cases, more volatile fuel is less ignitible by repeated sparks of the same frequency.

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