A performance model of a Wankel engine is developed which performs a leakage mass balance, accounts for heat transfer and flame quenching, and predicts the mass fraction burned as a function of chamber pressure. Experiments were performed on a production Wankel engine to obtain chamber pressure-time diagrams, and engine performance and emissions data. Model predictions of mass burned, global heat transfer, and hydrocarbon emission gave good agreement with measurements. Predictions of oxides of nitrogen are higher than measurements, especially at low loads. This is thought to be due to the adiabatic core gas assumption in the model. The need for a Wankel boundary layer study is identified.


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    Titel :

    Predicting the Emissions and Performance Characteristics of a Wankel Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1974 Automotive Engineering Congress and Exposition ; 1974



    Erscheinungsdatum :

    01.02.1974




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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