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The Fast Burn with Heavy EGR, New Approach for Low NOx and Improved Fuel Economy
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Abstract
In the way to seek a marked reduction of NOx just by EGR which was proved to be the best answer from the past studies, this analytical study deals with combustion around the practical engine stability limit.
The results show that practical engine operating stability limit with the four cylinder engine is determined by the occurrence of several percent of slow burn.
Experiments applying short combustion duration (fast burn) showed that the fast burn in combination with heavy EGR improves engine stability and has a potential to achieve substantial reduction in NOx emission along with some improvement in fuel economy. This potential was also directed by mathematical model study.
This fast burn concept was embodied in the newly developed Nissan Z Fast Burn Engine.
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Kuroda, H., Nakajima, Y., Sugihara, K., Takagi, Y. et al., "The Fast Burn with Heavy EGR, New Approach for Low NOx and Improved Fuel Economy," SAE Technical Paper 780006, 1978, https://doi.org/10.4271/780006.Also In
References
- Ohigashi S. Kuroda H. Nakajima Y. Hayashi Y. Sugihara K. “Heat Capacity Changes Predict Nitrogen Oxides Reduction by Exhaust Gas Recirculation.” SAE Paper 710010
- Kuroda H. Nakajima Y. Hayashi Y. Sugihara K. “An Approach to the Low Emission Engine with the Consideration of Fuel Economy.” SAE Paper 750416
- Kaneko Y. “The Effects of Exhaust Gas Recirculation and of Residual Gas on Engine Emission and Fuel Economy.” SAE Paper 750414
- Mizunuma T. Sato T. Matsuno I. “An Approach to Combustion Control for Low Pollution Engines by two Staged Combustion Process.” 16th International Congress of FISITA May 1976
- Sanda S. Toda T. Nohira H. Konomi T. “Statistical Analysis of Pressure Indicator Data of an Internal Combustion Engine.” SAE Paper 770882
- Ohigashi S. Hamamoto Y. Kizima A. “Effects of Turbulence on Flame Propagation in Closed Vessel.” Bulletin of the Japan Society of Mechanical Engineers 14 74 1971
- Quader Athor A. “Effects of Spark Location and Combustion Duration on Nitric Oxide and Hydro-carbon Emissions.” SAE Paper 730153
- Hosho Y. Oyama Y. Yamauchi T. Nishimiya T. “Exhaust Emission Reduction with Lean Mixture (2)” NAINENKIKAN 13 152 1974
- Sakai Y. Kunii K. Sasaki M. Kakuta N. Aihara H. “Combustion Characteristics of a Torch Ignited Engine - Analytical Measurements of Gas Temperature and Mixture Formation” Conference on Stratified Charge Engines London Nov. 1976
- Quader A. A. “What Limits Lean Operation in Spark Ignition Engines - Flame Initiation or Propagation?” SAE Paper 760760
- Matsuoka S. Yamaguchi T. Umemura Y. “Factors Influencing the Cyclic Variation of Combustion of S.I. Engine.” SAE Paper 710586
- Kim Y. “Mechanism of Cyclic Combustion Variation.” Preprint of the Japan Society of Mechanical Engineers 740-5 April 1974