A parametric investigation on high pressure diesel spray combustion characteristics was performed using a constant volume bomb, in such a way as to cover a wide range of chamber conditions, for 100, 210, and 320 MPa injection pressure. Ignition delay and position were found to be scarcely affected by injection pressure. High values of gas temperature and density produce faster ignition and move the ignition location closer to the injector nozzle. The duration of the combustion process was found to be a function of both injection pressure and chamber conditions. In particular, injection pressure increments shorten the combustion time, featuring a monotonic effect. Chamber temperature variations did not produce monotonic effects on combustion times. In fact, a minimum was found in the low- medium temperature range for all the conditions tested. In this respect, for each injection pressure, a fast combustion region on a gas pressure-temperature map can be defined, whose extent increases as the injection pressure increases.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Diesel Spray Combustion Rate Enhancement by Increasing Injection Pressure


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1993



    Publication date :

    1993-03-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Diesel spray combustion rate enhancement by increasing injection pressure

    Riva,G.E. / Reggiori,A. / Daminelli,G. et al. | Automotive engineering | 1993


    Combustion Improvement of an HSDI Diesel Engine with Increasing Injection-pressure and Injection Rate Shaping

    Hotta, Y. / Nakakita, K. / Sakata, I. et al. | British Library Online Contents | 2008


    Combustion Improvement of an HSDI Diesel Engine with Increasing Injection-pressure and Injection Rate Shaping

    Hotta, Y. / Nakakita, K. / Sakata, I. et al. | British Library Conference Proceedings | 2007


    Experiments in diesel combustion, injection, and spray technology

    International Spring Fuels and Lubricants Meeting and Exposition | TIBKAT | 2001


    Effect of fuel injection rate shaping and injection pressure on intermittent spray combustion

    Wakisaka,Y. / Azetsu,A. / Univ.of Tokyo,JP | Automotive engineering | 2000