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ディーゼル燃焼におけるパイロット噴射の効果 : 第2報,NO_x・燃費の背反関係改善 (<小特集>エンジンシステムの新展開)


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Title: ディーゼル燃焼におけるパイロット噴射の効果 : 第2報,NO_x・燃費の背反関係改善 (<小特集>エンジンシステムの新展開)
Other Titles: Effect of Pilot Injecton on Diesel Combustion : 2nd Report, Improvement in Trade-Off between NO_x and Fuel Consumption
Authors: 石田, 正弘 / 陳, 之立 / 植木, 弘信 / 駱, 貴峰
Authors (alternative): Ishida, Masahiro / Chen, Zhi-Li / Ueki, Hironobu / Luo, Gui-Feng
Issue Date: 25-Oct-1995
Publisher: 日本機械学会
Citation: 日本機械学會論文集. B編 61(590) p.3524-3531, 1995
Abstract: To reduce the level of exhaust emissions and to improve ignition characteristics, the effect of pilot injection was investigated in a turbocharged direct-injection diesel engine. As a result, it is found that the pilot injection shows some significant effects on reducing the ignition delay and on improving the trade-off relationship between NO_x and fuel consumption. The improvement in the trade-off relationship by pilot injection is observed in both the low-cetane fuel and the high-quality fuel. This simultaneous reduction in NO_x and fuel consumption is caused by a slow rate of pressure rise during the initial combustion which results in a higher mechanical efficiency and a lower cooling loss. In the short interval between pilot and main injection, a small amount of pilot injection is rcommended to reduce both NO_x and fuel consumption without increasing smoke.
Keywords: Diesel Engine / Pilot Injection / Exhaust Emission / Fuel Consumption / Exhaust Loss / Cooling Loss / Trade-Off Relationship
URI: http://hdl.handle.net/10069/6748
ISSN: 03875016
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/6748

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