A study of the internal flow in the most used nozzle types in Diesel engines (microSAC and valve covered orifice VCO) was carried out in order to compare injection characteristics and understand the differences between them. To determine these differences, several experimental installations will be used, such as the injection rate test rig, steady flow test rig and spray momentum test rig, to obtain a full hydrodynamic characterization.With the help of the silicone methodology and a microscope, it is possible to determine the needle tip geometry (seat). As the geometrical characterization of the components in both nozzles was known, it was possible to carry out a CFD analysis at several needle lifts and thus observe the behavior of the internal flow in the nozzle seats and be able to compare both nozzles


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    Titel :

    Influence of Nozzle Seat Type on Internal Flow of Convergent Nozzles


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Gil, A. (Autor:in) / Plazas, A.H. (Autor:in) / Giménez, B. (Autor:in) / Payri, R. (Autor:in)

    Kongress:

    2004 SAE Fuels & Lubricants Meeting & Exhibition ; 2004



    Erscheinungsdatum :

    2004-06-08




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Influence of nozzle seat type on internal flow of convergent nozzles

    Payri,R. / Gil,A. / Plazas,A.H. et al. | Kraftfahrwesen | 2004


    Critical Flow Through Convergent Nozzles

    Emerald Group Publishing | 1951