A series of engine dynamometer tests was carried out with 100 % ethyl ester of soya oil as fuel and six different diesel engine lubricants. In each case the lubricant became contaminated by unburnt fuel during the tests with measured dilution rates of up to 0.2 % of the fuel throughput. The lubricant/fuel mixture eventually underwent degradation to such an extent that phase separation occurred. The tests were terminated when the lubricant lost all dispersancy, as evaluated by a blotter-spot test. Used oil analysis revealed that rapid oxidation of some of the fatty acid ester components of the fuel diluent had occurred in the later stages of the tests. At the high levels of fuel dilution recorded in these tests there was little difference between the performances of the six lubricants, despite their differing performance categories. It is therefore concluded that conventional performance categories cannot be used to define the grade of lubricant necessary for use with 100 % vegetable oil ester fuels.


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    Titel :

    Performance of lubricating oils in vegetable oil ester-fuelled diesel engines


    Weitere Titelangaben:

    Wirkung von Schmieroelen in Dieselmotoren mit Pflanzenoelester als Kraftstoff


    Beteiligte:
    Blackburn, J.H. (Autor:in) / Pinchin, R. (Autor:in) / Nobre, J.I. (Autor:in) / Crichton, B.A. (Autor:in) / Cruse, H.W. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1983


    Format / Umfang :

    9 Seiten, 5 Bilder, 6 Tabellen, 11 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Performance of Lubricating Oils in Vegetable Oil Ester-Fuelled Diesel Engines

    Crichton, B. A. L. / Cruse, H. W. / Blackburn, J. H. et al. | SAE Technical Papers | 1983


    Performance of Lubricating Oils in Vegetable Oil Ester-Fuelled Diesel Engines

    Blackburn,J.H. / Pinchin,R. / Nobre,J.I. Crichton,B.A. et al. | Kraftfahrwesen | 1983


    Diesel engines supplied with vegetable oils

    Pascal,P. | Kraftfahrwesen | 1985


    Fuels and lubricating oils for marine diesel engines

    Kroeg, F.J. | Engineering Index Backfile | 1965


    HEAVY-DUTY LUBRICATING OILS for NAVAL Diesel Engines

    KLEMGARD, EDWIN N. | SAE Technical Papers | 1942