A Couette viscometer is described which is capable of measuring the viscosity of engine lubricants at a temperature of 150 Cel and shear rates from 105 to 106/s. A novel feature of the instrument is the introduction of an electrical capacitance method for measuring the size of the annular gap. Operating procedures are discussed in detail and mathematical corrections are established for dealing with temperature rise in the test sample. Viscometric data for some single-grade oils and multigrade oils are presented. (DePo)


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    Titel :

    Use of a Couette high-shear-rate viscometer for measuring the viscosity of engine lubricants


    Weitere Titelangaben:

    Couette Rheometer fuer die Messung hoher Scherbeanspruchungen und Viskositaeten von Motorschmiermitteln


    Beteiligte:
    Wright, B. (Autor:in) / Mather, J. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1979


    Format / Umfang :

    12 Seiten, 11 Bilder, 2 Tabellen, 16 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Use of a Couette High-Shear-Rate Viscometer for Measuring the Viscosity of Engine Lubricants

    Wright,B. / Mather,J. / Shell Res.,Chester,GB | Kraftfahrwesen | 1979


    A New Concentric-Cylinder High-Shear Rate Viscometer for Measuring the Viscosity of Engine Lubricants

    Os,N.van / Helden,A.K.van / Berg,W.van dem et al. | Kraftfahrwesen | 1982


    A New Concentric-Cylinder High-Shear Rate Viscometer for Measuring the Viscosity of Engine Lubricants

    van Helden, A. K. / van Os, N. / van den Berg, W. | SAE Technical Papers | 1982


    Development of a high shear rate capillary viscometer for engine oils

    Rein,S.W. / Alexander,D.L. / Texaco,Beacon Res.Lab.,US | Kraftfahrwesen | 1980