Combustion Development of Euro 4 Heavy-Duty Diesel Engines

  • M. Lejeune
  • D. Lortet
  • S. Michon
Conference paper

Abstract

The two current Euro 4 strategies are EGR with DPF and SCR. This paper describes the development of combustion on Common Rail engines for those two strategies. On single-cylinder engines, effects of boost pressure, EGR rate, swirl, bowl shape, spray angle, injection timing and pressure were analyzed, and optimal values selected. On six-cylinder engines, behavior in steady and transient state was studied with this selected hardware and various air management strategies. At the end, a multi-criteria comparison between the two strategies was performed.

Keywords

Selective Catalyst Reduction Spray Angle Exhaust Manifold Boost Pressure Bowl Shape 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Table of abbreviations

AFR

Air Fuel Ratio

BSFC

Brake Specific

Fuel Consumption

BSNOx

Brake Specific

Nitrogen Oxide

BDC

Bottom Dead Center

DOE

Design of Experiment

DPF

Diesel Particulate Filter

EGR

Exhaust Gas Recirculation

ESC

European Steady-state Cycle

ETC

European Transient Cycle

ISM

Impulse Swirl Meter

PM

Particulate Mater

SCR

Selective Catalyst Reduction

VGT

Variable Geometry Turbine

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References

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    BENAJES et Al. (CMT) – «Influence of Pre–and Post–injection on the Performance and Pollutant Emissions in a HD Diesel Engine» – SAE 2001–01–0583Google Scholar
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    DESANTES and Al. (CMT) – « Influence of EGR Rate, Oxygen Concentration and Equivalent Fuel/air Ratio on the Combustion Behaviour and Pollutant Emissions of a Heavy–duty Diesel Engine» – SAE 2000–01–1813Google Scholar
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • M. Lejeune
    • 1
  • D. Lortet
    • 1
  • S. Michon
    • 1
  1. 1.Renault VI PowertrainSaint-Priest CedexFrance

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