The effects of injection pressure and duration on exhaust gas emissions, sooting flame temperature, and soot distribution for a heavy–duty single cylinder DI diesel engine were investigated experimentally. The experimental analysis included use of two–color pyrometry as well as “conventional” measuring techniques. Optical access into the engine was obtained through an endoscope mounted in the cylinder head. The sooting flame temperature and soot distribution were evaluated from the flame images using the AVL VisioScope™ system. The results show that the NOx/soot trade–off curves could be improved by increasing injection pressure. An additional reduction could also be obtained if, for the same level of injection pressure, the injection duration was prolonged.
Experimental Study of the Combustion Process in a Heavy–Duty DI Diesel Engine for Different Injection Scenarios
Sae Technical Papers
2003 JSAE/SAE International Spring Fuels and Lubricants Meeting ; 2003
19.05.2003
Aufsatz (Konferenz)
Englisch
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