Multiple injection is potentially capable of reducing emissions of common-rail diesel engines at part load. The slope of the needle lift of today’s hydraulically operated common-rail injectors is very weak. For that reason, the fuel flow is throttled in that phase and the mixture formation suffers. The presented injector, which is directly actuated by a piezo, shows the same very steep needle lift as a unit injector. This results in a better mixture formation. A needle lift control allows to open orifices at different levels and to adjust homogenisation.The hardware in the loop simulation shows the exact needle lift control and its influence on the mixture formation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A New Lift-Controlled Piezo Injector for the Next Generation of Common Rail Diesel Injection Systems for Passenger Cars


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    2001 Internal Combustion Engines ; 2001



    Publication date :

    2001-09-23




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Simulation and design optimization of a common rail piezo injector for passenger car direct injection diesel engines

    Baranowski,D. / Kluegl,W. / Schoeppe,D. et al. | Automotive engineering | 1999


    Common Rail Technology for Diesel Passenger Cars

    Naik, L. M. / Bhat, A. / Institute of Electronics and Telecommunications Engineers et al. | British Library Conference Proceedings | 1999


    Servo-driven piezo common rail diesel injection system

    Schoeppe,D. / Stahl,C. / Krueger,G. et al. | Automotive engineering | 2012


    High performance diesel direct driven piezo common rail injection system

    Schoeppe,D. / Atzler,F. / Kastner,O. et al. | Automotive engineering | 2014


    Complete modelling of a piezo actuator last-generation injector for diesel injection systems

    Salvador,F.J. / Plazas,A.H. / Gimeno,J. et al. | Automotive engineering | 2014