The mathematical models that predict friction losses for an internal combustion (IC) engine are described in this paper. These models are based on a combination of fundamental physics and empirical results. These include predictions of losses arising from friction and viscous fluid motion associated with the relative movement of solid surfaces within a piston assembly, the cranktrain, and valvetrain components. The engine friction losses are defined in the context of the geometries of the particular components within an IC engine. Details of these formulations are given, including novel geometry-related coefficients. Different regimes of lubricated friction are considered. In order to establish the model fidelity and robust solution methodology, the mathematical models are validated against engine friction tests. Utilization of these models enables practical solutions to the development of new low friction IC engines that leads to improved engine mechanical efficiency and fuel economy.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Evaluating Major Parasitic Power Losses in IC Engines


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Geist, Bruce K. (Autor:in) / Chai, Lin (Autor:in) / Su, Raymond (Autor:in) / Tao, Wei (Autor:in) / Resh, William F. (Autor:in)

    Kongress:

    SAE 2016 World Congress and Exhibition ; 2016



    Erscheinungsdatum :

    2016-04-05




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    eta-up - Reduction of Parasitic Losses of Medium-Speed Diesel Engines

    Püschel, Marko / Reißig, Martin / Theile, Martin et al. | TIBKAT | 2018


    Effects of cycle and parasitic losses on spark ignition engines at full throttle

    Parker,P.H. / Gaydon Technology,GB | Kraftfahrwesen | 1986


    Power losses in automobile engines

    Drucker, E. | Engineering Index Backfile | 1935


    APPARATUS FOR RECOVERY OF PARASITIC ENERGY LOSSES

    NULMAN YANIR | Europäisches Patentamt | 2015

    Freier Zugriff

    A Discussion of Power Losses In Tractor Engines

    MUELLER, H. T. / PFUNDSTEIN, K. L. | SAE Technical Papers | 1948