For further optimization of the automotive power train of diesel engines, advanced combustion processes require a highly flexible injection system, provided e.g. by the common rail (CR) injection technique. In the past, the feasibility to implement injection nozzle volumetric flow sensors based on the thermo-resistive measurement principle has been demonstrated up to injection pressures of 135 MPa (1350 bar). To evaluate the transient behaviour of the system-integrated flow sensors as well as an injection amount indicator used as a reference method, hydraulic simulations on the system level are performed for a CR injection system. Experimentally determined injection timings were found to be in good agreement with calculated values, especially for the novel sensing element which is directly implemented into the hydraulic system. For the first time pressure oscillations occurring after termination of the injection pulse, predicted theoretically, could be verified directly in the nozzle. In addition, the injected amount of fuel is monitored with the highest resolution ever reported in the literature.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A volumetric flow sensor for automotive injection systems


    Beteiligte:
    Schmid, U. (Autor:in) / Krötz, G. (Autor:in) / Schmitt-Landsiedel, D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2008


    Format / Umfang :

    9 Seiten, 17 Bilder, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    An injection quantity sensor for automotive applications

    Schmid, U. / Seidel, H. | Tema Archiv | 2005


    New Electronically Controlled Continuous Flow Injection Systems for Automotive Applications

    Mohtasebi, S. S. / Krepec, T. / Hong, H. et al. | British Library Conference Proceedings | 1998


    Automotive gasoline injection

    Miller, S.E. | Engineering Index Backfile | 1956


    Automotive Gasoline Injection

    Miller, Sidney E. | SAE Technical Papers | 1956


    Automotive Gasoline Injection

    Nystrom, C. H. | SAE Technical Papers | 1958