An inhibitor pakage which is silicate-, nitrate-, borate- and phosphate-free has been developed as the basis for a world-wide automative coolant formulation. The formulation contains aliphatic mono- and dicarboxylic acids and tolytriazole as the sole inhibitors. Formulations containing carboxylic acid inhibitors have been studied in ASTM bench tests and found to sufficiently protect all prevalent cooling system metals. In addition, fleet tests have shown that carboxylic acide inhibitors deplete much more slowly than conventional inhibitors, making possible a much longer life coolant. Results from laboratory tests which simulate extended usage indicated that carboxylic acid-containing coolants have a significantly longer life span for the protection of all cooling system metals. Finally, the carboxylic acid/tolyltriazole inhibitor package is completely adaptable to a propylene glycol base.


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    Titel :

    Long life performance of carboxylic acid based coolants


    Weitere Titelangaben:

    Langzeitverhalten von Kühlmitteln auf Carbonsäurebasis


    Beteiligte:
    Washington, D.A. (Autor:in) / Miller, D.L. (Autor:in) / Maes, J.P. (Autor:in) / Ven, P. van de (Autor:in) / Orth, J.E. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1994


    Format / Umfang :

    5 Seiten, 10 Bilder, 2 Tabellen, 8 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Long Life Performance of Carboxylic Acid Based Coolants

    Miller, David L. / Washington, Debra A. / Maes, Jean-Pierre et al. | SAE Technical Papers | 1994


    Long life performance of carboxylic acid based coolants

    Washington,D.A. / Miller,D.L. / Maes,J.P. et al. | Kraftfahrwesen | 1994


    Elastomer service life prediction in organic acid coolants

    Hertz,D.L. / Farinella,A.C. / Bussem,H. et al. | Kraftfahrwesen | 2001


    Elastomer Service Life Prediction in Organic Acid Coolants

    Farinella, A. C. / Hertz, D. L. / Bussem, H. | SAE Technical Papers | 2001