Influence of Combustion Chamber Parameters on Emission Performance of Common Rail Diesel Engine

GONG Xinrui; LIU Zhenming; LIU Nan; HUANG Xinyuan; ZHOU Lei

Vehicle Engine ›› 2019, Vol. 0 ›› Issue (6) : 28-32.

GONG Xinrui,LIU Zhenming,LIU Nan,HUANG Xinyuan,ZHOU Lei

Author information +

History +

Abstract

The numerical calculation was carried out by using the CFD software CONVERGE. The influence of combustion chamber structural parameters on the emission characteristics of common rail diesel engine was studied and analyzed. The sensitivity of structural parameters to the emission performance of the diesel engine was also analyzed. The results show that the aperture ratio has the greatest effect on NO_x emission, the opening angle is the key parameter affecting the soot emission, and the TDC clearance and the radius of bowl bottom arc are the secondary factors affecting the emission. Decreasing the aperture ratio properly and increasing the opening angle can reduce the soot and NO_x emissions. And the lowest NO_x emission can be obtained when the radius of bowl bottom arc is 15 mm or the TDC clearance is 6.5 mm. The radius of bowl bottom arc and the TDC clearance have slight influence on soot emission.

Key words

diesel engine / combustion chamber / structural parameter / emission / sensitivity analysis

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

GONG Xinrui,LIU Zhenming,LIU Nan,HUANG Xinyuan,ZHOU Lei. Influence of Combustion Chamber Parameters on Emission Performance of Common Rail Diesel Engine[J]. Vehicle Engine. 2019, 0(6): 28-32