To achieve the future emissions regulations with low particulate and NOx levels, both the engine combustion system and the fuel injection equipment will have to be improved. For the fuel injection equipment, high injection pressure and variable injection timing as a function of engine speed, load, and temperature are of great importance. BOSCH is developing two different solutions: electronically controlled unit injector and single cylinder pump systems, high-pressure inline pumps with control sleeve and electronic control. This paper describes: the unit injector and its high-pressure solenoid valve, the requirements for the mounting of the unit injector in the engine, the low-pressure system, the electronic control unit and the metering strategy.


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    Title :

    Electronically controlled high pressure unit injector system for diesel engines


    Additional title:

    Elektronisch gesteuerte Hochdruckeinspritzsystem-Einheit für Dieselmotoren


    Contributors:
    Lauvin, P. (author) / Löffler, A. (author) / Schmitt, A. (author) / Zimmermann, W. (author) / Fuchs, W. (author)

    Published in:

    Publication date :

    1991


    Size :

    13 Seiten, 21 Bilder, 7 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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