Abstract
Keywords - injector, simulation, solenoid valve, injection nozzle, control orifice
Abstract - In order to meet all requirements for the diesel engines emission and performance the injection system must deliver the exact injection quantity with the corresponding injection pattern at all operating points. To realize this it is imperative to understand the internal processes within the injection system.
In the following all major functional components of the common-rail injector are going to be metrologically analyzed including the control valve, control orifice and injection nozzle. Based on this analysis simulation models for all components are created and are going to be verified individually. The model elements are combined in the injector model and are verified by measured values. The prediction accuracy of the developed injector model is excellent.