Multiple fuel injections with higher injection pressure are a way to improve diesel engine performance and lower emissions of unburned HCs, smoke, particulate matter and carbon monoxide (CO). However this method leads to a higher level of NOx emissions. A combination of higher pressure split injection and exhaust gas recirculation (EGR) has potential in controlling NOx emissions and engine performance simultaneously. The focus of this study is to investigate the effect of variation in injection pressure with split (pilot and main) injection, (with and without cooled EGR) on engine performance and emissions. The engine used is a common rail direct injection V6 Diesel fitted with turbo-charged variable turbine geometry (VTG) turbochargers, fuelled with ultra low sulphur diesel (ULSD). The experiments include five different levels of injection pressure 300, 430, 500, 600, 700 bar, at two different engine speeds and various loads, 1500 rpm (35.1, 70.2 and 140 Nm) and 2000 rpm (43.3, 86.6 and 120 Nm).Fuelled by ULSD, the experimental results show that the performance and emissions of the engine at higher pressure split injection were improved, compared to lower pressure. This applied to both EGR cases (EGR ON and EGR OFF). These results showed strong evidence that the increase of the injection pressure up to a certain value, can lower emissions of total hydrocarbons (THCs), carbon monoxide (CO) and particulate matter (PM). In addition, it has been shown that combination of higher pressure split injection with EGR has potential to lower nitrogen oxides (NOx) and fuel consumption without significant smoke penalties.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of Injection Pressure with Split Injection in a V6 Diesel Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Tsolakis, A. (Autor:in) / Xu, H. M. (Autor:in) / Wyszynski, M. L. (Autor:in) / Abdullah, Nik Rosli (Autor:in) / Rounce, P. (Autor:in) / Mamat, Rizalman (Autor:in)

    Kongress:

    9th International Conference on Engines and Vehicles ; 2009



    Erscheinungsdatum :

    2009-09-13




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Effect of injection pressure and split injection on exhaust odor and engine noise in direct injection diesel engines

    Roy,M.M. / Tsunemoto,H. / Bangladesh Inst.of Technol.,BD et al. | Kraftfahrwesen | 2002


    Effect of Injection Pressure and Split Injection on Exhaust Odor and Engine Noise in DI Diesel Engines

    Roy, M. M. / Tsunemoto, H. / Society of Automotive Engineers | British Library Conference Proceedings | 2002


    Effect of Injection Pressure and Split Injection on Exhaust Odor and Engine Noise in DI Diesel Engines

    Tsunemoto, Hideyuki / Roy, Murari Mohon | SAE Technical Papers | 2002


    Improvement of Thermal Efficiency in a Diesel Engine with High-Pressure Split Main Injection

    Kawanabe, Hiroshi / Egoshi, Kenta / Horibe, Naoto et al. | SAE Technical Papers | 2018