21105 過給HCCI機関の燃焼特性の解析(燃料と燃焼の新しい展開(1),OS.9 燃料と燃焼の新しい展開,学術講演)

概要

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The Homogeneous Charge Compression Ignition (HCCI) engine has attracted much interest in recent years because it can simultaneously achieve high efficiency and low emissions. However, the HCCI combustion process has the problem that combustion proceeds too rapidly. In this study, the influence of boosting the intake air pressure on combustion characteristics of HCCI engine fueled with dimetyl ether (DME) was investigated. Spectroscopic measurements were used to examine the combustion characteristics in detail. The experimental results revealed that, the combustion became more moderate with boosting the intake air pressure. With the result, the operating load extended more upper load ranges. But the lower load range was narrowed because of decreasing of combustion efficiency.
一般社団法人日本機械学会の論文
2008-03-13