We were able to identify engine blow-by as a primary factor affecting camshaft wear in gasoline engines. Using a 2.3-liter overhead-camshaft engine, we isolated the valve-train oil from the crankcase oil and its blow-by using a separated oil sump. We find that: Later studies identified nitric acid as a primary cause of camshaft wear. It is derived from nitrogen oxides reacting with water in the blow-by. But even in the presence of blow-by, camshaft wear can be controlled by the proper selection of zinc dithiophosphates (ZnDTP) and detergent type.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Gasoline-Engine Camshaft Wear: The Culprit is Blow-By


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    1989 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1989



    Erscheinungsdatum :

    01.09.1989




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Gasoline-engine camshaft wear:The culprit is blow-by

    McGeehan,J.A. / Yamaguchi,E.S. | Kraftfahrwesen | 1989


    Camshaft Surface Temperatures in Fired-Gasoline Engines

    Yamaguchi, E. S. / McGeehan, J. A. / Graham, J. P. | SAE Technical Papers | 1990



    Camshaft for internal-combustion engine

    SAWADA FUKUEI / SATO SHIGERU | Europäisches Patentamt | 2023

    Freier Zugriff

    CAMSHAFT FOR INTERNAL-COMBUSTION ENGINE

    SAWADA FUKUEI / SATO SHIGERU | Europäisches Patentamt | 2022

    Freier Zugriff