Multi-Dimensional Simulation on the Matching of Combustion Chamber and Injection Pressure for a Heavy-Duty Diesel Engine

Abstract:

Multi-dimensional simulation was applied for the investigation of the combustion system of a heavy-duty diesel engine. Firstly, the matching of combustion chamber and injection pressure has been determined by simulation. Then through intermediate characteristic parameters which could quantitatively describe the properties of the mixing and combustion, the influence of the matching of chamber caliber ratios and injection pressure on each sub-process in compression and power stroke was analyzed comprehensively. The results showed that, for the model studied in this article, increasing the combustion chamber caliber ratio and injection pressure could help expanding the distribution range of the mixture in cylinder, making the mixture more uniform, increasing the proportion of the dilute mixture, thus effectively improved the power performance.

• Periodical: Advanced Materials Research (Volumes 516-517)
• Pages: 623-627
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.516-517.623
• Online since: May 2012
• Authors: Ye Yuan, Guo Xiu Li, Yu Song Yu, Peng Zhao, Hong Meng Li
• Keywords: Combustion System, Diesel Engine, Optimization

References

[1] Youcheng Niu, Guoxiu Li , Peng Zhao. Journal of Engineering Thermophysics. Vol. 30 (2009), p.707. (in Chinese)

[2] Ping Wang, Bin Tang, Xigeng Song, etc. Journal of Thermal Science and Technology. Vol. 7 (2008), p.252. (in Chinese)

[3] Jing Tian , Linlin Zhang , Xin Fan ,etc. Internal Combustion Engine ＆ Powerplant. Vol. 115 (2010), p.35. (in Chinese)

[4] Zhijun Li, Michael Kokkolaras, Dohoy Jung. SAE Detroit, Michigan March 8-11 2004.

[5] Arturo de Risi, Paolo Carlucci, Teresa Donateo, etc. ASME, 2002.

[6] Xuedong Lin, Xuemei Chen, Erxin Zhu, etc. Automotive Engineering. Vol. 25 (2005), p.537. (in Chinese)