0733 パイロット噴射による低着火性ディーゼル燃料の燃焼改善(S44-1 燃料および潤滑技術(1),S44 燃料および潤滑技術)

概要

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As the rate of pressure rise with light cyclic oil (LCO) in ordinary single stage injection diesel operation is extremely high due to the low ignitability, the suppression of rapid combustion is essential for practical use. The pilot injection can efficiently reduce the rate of pressure rise for a wide operation range, and smooth combustion with comparable exhaust gas emissions and engine performance with ordinary diesel fuel operation is achieved. When the NO_x is maintained less than 100ppm with EGR, the smokeless operations rage with LCO and pilot injection operation can be expanded to higher load rather than with ordinary diesel fuel operation. However, the suppression effect of rapid combustion by the pilot injection decreases with EGR, and the rate of pressure rise with LCO becomes very high even with pilot injection at high EGR operation.
2007-09-07