SINCE it appeared reasonably certain that the key to the presence of sludge deposits, regardless of form, lies in the oxidation of the oil to give the small amounts of asphaltic substances which are inevitably present, the authors prepared the following paper to summarize and appraise the evidence on this point and to present a method for measuring oil stability.After discussing sludge, its composition and effects, engine observations of oil oxidation are stated and the conclusions are reached: (a) that appreciable oxidation of each of the oils occurred in a 50-hr. run; that (b), variation in engine output markedly influenced oxidation of the oils while variation in sump temperatures did not; and (c), that even with the wide difference in the character of the oils used, chloroform insoluble material (“carbon”) did not vary greatly but appeared to be determined mainly by engine condition.A comparison of laboratory and engine tests is made and the Indiana Oxidation Test is described. Service observations are stated and commented upon. In conclusion it is said that the indication is that the formation of sludge in motor oils is due primarily to asphaltenes resulting from oxidation of the oil.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Causes and Effects of Sludge Formation in Motor Oils


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Shoemaker, B. H. (Autor:in) / Barnard, D. P. (Autor:in) / Barnard, E. R. (Autor:in) / Wilkin, R. E. (Autor:in) / Rogers, T. H. (Autor:in)

    Kongress:

    Pre-1964 SAE Technical Papers ; 1906



    Erscheinungsdatum :

    1934-01-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Modern Motor Oils

    Asseff, P. A. | SAE Technical Papers | 1962


    TODAY'S MOTOR OILS

    HEBERT, G. M. | SAE Technical Papers | 1951


    Testing motor oils

    Paterson, E.V. | Engineering Index Backfile | 1945


    Heavy-duty motor oils

    Arter, K.T. | Engineering Index Backfile | 1943