In this paper, the potential of new generation piezo-driven indirect acting injectors on high feature diesel engine performance and emissions was assessed by combining experimental tests (carried out at both hydraulic and engine test beds) with the diagnostics of combustion and emissions. This latter was performed by means of a refined multizone combustion diagnostic tool previously developed at Politecnico di Torino. More in detail, a complete hydraulic characterization of the injection system has been carried out and injector performance, in terms of robustness and repeatability of the injection process, has been also evaluated. Injectors were then installed on 4-cylinder 2.0L Diesel engine and tests were performed in seven key-points, which were specifically selected so as to reproduce the engine operations over NEDC in terms of emissions and fuel consumption. For each key-point, different injection-train strategies were tested and the corresponding engine calibrations were optimized by Design of Experiment (DoE) methodology. In-cylinder pressure time-histories measured on the firing engine and injection rates evaluated at hydraulic test rig were then processed by the multizone diagnostic tool so as to obtain Φ-T time-histories of each zone. Finally, the injection strategy showing the best compromise in terms of pollutant emissions, fuel consumption and combustion noise was selected for each key-point and the cause-effect relationships between injection rate and combustion process were analyzed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental Analysis of Combustion Processes and Emissions in a 2.0L Multi-Cylinder Diesel Engine Featuring a New Generation Piezo-Driven Injector


    Additional title:

    Sae Technical Papers


    Contributors:
    Ferrari, A. (author) / Catania, A.E. (author) / Spessa, E. (author) / Avolio, G. (author) / Finesso, R. (author) / d'Ambrosio, S. (author) / Rampino, V. (author)

    Conference:

    9th International Conference on Engines and Vehicles ; 2009



    Publication date :

    2009-09-13




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    The New General Motors 2.0L Diesel 4-Cylinder Engine

    Carlo, V. de / Scalabrini, S. / Bisci, P. et al. | TIBKAT | 2021


    Application and initial test results of 1800bar Piezo injector system for 2.0L diesel engine to improve emission and performance

    Choi, C. R. / Kang, J. H. / Kwon, S. h. et al. | British Library Conference Proceedings | 2005


    In-Cylinder Experimental Analysis using Piezo-Driven Diesel Injector Equipped with Needle-Lift Sensor

    Ikemoto, M. / Omae, K. / Nishida, K. et al. | British Library Online Contents | 2010


    NVH Development of EU5 2.0L and 2.2L Diesel Engine

    Lee, N. / Park, W. / Ruotolo, R. et al. | British Library Conference Proceedings | 2011


    Development of New 2.0L Inline 4-cylinder NA Engine for e:HEV

    Kasajima, Yuya / Egawa, Takeshi / Ushio, Nobuhiro et al. | British Library Conference Proceedings | 2023