In-cylinder emission control strategies, such as modifications of injection pressure and injection timing, have been used by researchers in order to reduce exhaust emissions and to comply with the legislation standards. Since some years ago post-injections have been studied and are well known as being efficient for soot emissions reduction. Although is well known that diesel gaseous and particle mass emissions have been reduced progressively over the last twenty years in response to the restrictive emission legislation and due to the application of new technologies The aim of this work is to help develop and understand the effect of the post-injection on diesel exhaust particle size distributions. The approach is to use a modern, well instrumented research engine equipped with a flexible high pressure fuel injection system. The results of this work are available to help provide guidelines for strategies to achieve reductions of the particle size distributions in diesel engines. The major improvements with the post-injection in the particle size distributions was in the nucleation mode with the use of close post-injection with a high fuel mass post-injected; in the case of the accumulation mode certain relation was founded with the use of close post-injections with high quantities of fuel mass post-injected. In all cases the use of two post-injections strategy shows similar trends than the use of a single post-injection strategy.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    An Investigation of Particle Size Distributions with Post Injection in DI Diesel Engines


    Additional title:

    Sae Technical Papers



    Conference:

    SAE 2011 World Congress & Exhibition ; 2011



    Publication date :

    2011-04-12




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    An investigation of particle size distributions with post injection in direct injection diesel engines

    Desantes,J. / Bermudez,V. / Garcia,A. et al. | Automotive engineering | 2011


    A comprehensive study of particle size distributions with the use of post-injection strategies in DI diesel engines

    Desantes, Jose Maria / Bermudez, Vicente / Garcia, Antonio et al. | Tema Archive | 2011



    Measurement repeatability improvement for particle number size distributions from diesel engines

    Yokoi,T. / Shinzawa,M. / Matsumoto,Y. et al. | Automotive engineering | 2001


    Post-war diesel engines

    Collins, Tom J. | SAE Technical Papers | 1945