A passenger car variable mass crankshaft is here reported. This particular device consists of an auxiliary flywheel with a high moment of inertia. it spins freely at above 1500 (rpm), thanks to centrifugal masses which disengage it from the crankshaft. The flywheel is connected once again to the crankshaft, when the engine speed reduces to under 1400 (rpm). In this way, the mass of the crankshaft is increased at low engine speed (e.g. idle condition) and the magnitude of rotational fluctuations are consequently lowered. On the contrary, the extra mass is unnecessary and undesirable above a certain engine speed and is therefore reduced, so improving both the vehicle acceleration, engine braking performance and fuel economy. The variable mass crankshaft device has been mounted onto a passenger car, in order to determine fuel consumption and acceleration performance, both through theoretical investigations and by means of experimental tests on a roller-type bench.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Variable mass crankshaft for general car performance improvement: Acceleration, fuel economy and emissions


    Weitere Titelangaben:

    Eine Kurbelwelle mit variabler Masse zur allgemeinen Leistungssteigerung von Pkw's: Beschleunigung, Kraftstoffersparnis und Schadstoffemissionen


    Beteiligte:
    Morelli, A. (Autor:in) / Nuccio, P. (Autor:in)


    Erscheinungsdatum :

    1993


    Format / Umfang :

    15 Seiten, 10 Bilder, 5 Tabellen, 6 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Variable mass crankshaft for general car performance improvement: Acceleration, fuel economy and emissions

    Morelli, A. / Nuccio, P. / European Automobile Engineers Cooperation | British Library Conference Proceedings | 1993


    Variable mass crankshaft for general car performance improvement:Acceleration, fuel economy and emissions

    Morelli,A. / Nuccio,P. / Tech.Univ.of Torino,IT | Kraftfahrwesen | 1993


    Two-Step Variable Valve Actuation for Fuel Economy, Emissions, and Performance

    Rask, Eric / Sellnau, Mark | SAE Technical Papers | 2003


    Two-step variable valve actuation for fuel economy, emissions, and performance

    Sellnau,M. / Rask,E. / Delphi Research Labs,US | Kraftfahrwesen | 2003