The effect of after-injection on exhaust gas emissions from a DI diesel engine with a common rail injection system was experimentally investigated for a range of operating conditions. The results showed that over the whole of the operating range, some reduction in smoke emissions can be achieved with after-injection, without deterioration in thermal efficiency and other emission characteristics. The optimum quantity of after-injection for smoke reduction is 20% of the total fuel supply, and the optimum timing is just after the main injection. Visualization in a bottom view type engine showed that with after-injection, soot formation in the main-injection decrease more due to a smaller quantity of fuel than without after-injection, and soot formation with after-injection is insignificant.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improvements in Diesel Combustion with After-Injection


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Powertrains, Fuels and Lubricants Meeting ; 2008



    Publication date :

    2008-10-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Improvements on diesel combustion with after-injection

    Ogawa,H. / Yopshida,T. / Takahashi,K. et al. | Automotive engineering | 2008


    Improvements in Diesel Combustion with After-Injection

    Ogawa, H. / Yoshida, T. / Takahashi, K. et al. | British Library Conference Proceedings | 2008


    Improvements in Diesel Combustion with After-Injection

    Yoshida, T. / Ogawa, H. / Shudo, T. et al. | British Library Conference Proceedings | 2006


    Improvements in Diesel Combustion with After-Injection

    Ogawa, H. / Shudo, T. / Yoshida, T. et al. | British Library Online Contents | 2008


    Improvements to direct injection diesel combustion

    Greeves,G. / Wang,C.H.T. / Partridge,I.M. et al. | Automotive engineering | 1988