Exhaust valve temperatures are important in the selection of valve materials, and have strong effects on borderline spark angle and pre-ignition borderline limit. In order to support analytical modeling of exhaust valve temperatures and to correlate exhaust valve temperatures as a function of engine Reynolds number, exhaust valve temperatures were mapped as a function of spark angle and engine coolant temperatures at 2000 rpm. In addition temperatures were measured at wide open throttle at 2000, 3000, and 4000 rpm. The exhaust valve temperature was expressed as a dimensionless temperature using the exhaust gas temperature and the engine coolant temperature, then the dimensionless temperature was correlated as a function of spark angle and engine Reynolds number. The results indicate that once the temperature is known at a given speed and load condition for any one cylinder, the temperature at other speed and load conditions can be reasonably estimated.


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    Titel :

    Correlation of Exhaust Valve Temperatures with Engine Reynolds Number in a 1.9 L Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Galietti, C. A. (Autor:in) / Caverly, J. C. (Autor:in) / Swank, L. R. (Autor:in)

    Kongress:

    International Congress & Exposition ; 1992



    Erscheinungsdatum :

    1992-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Correlation of Exhaust Valve Temperatures with Engine Reynolds Number in a 1.9 L Engine

    Swank,L.R. / Caverly,J.C. / Galietti,C.A. et al. | Kraftfahrwesen | 1992




    Reynolds 390 Engine Technology

    Jorstad, John L. | SAE Technical Papers | 1983


    Reynolds 390 Engine Technology

    Jorstad,J.L. / Reynods Metals,US | Kraftfahrwesen | 1983