A vane pump rig of the type used in ASTM D-2882 was used to study the permanent and temporary shear loss characteristics of hydraulic fluids containing a variety of VI improvers. The influence of polymethacrylate VI improver molecular weight on performance was studied. Severity of hydraulic oil service was assessed relative to that tor automotive engine oils, and the suitability of common VI improvers is discussed. It was shown that shear stable polymethacrylate VI improvers can provide a high level of performance for extended periods of time.


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    Titel :

    Effect of VI Improver on the In-Service Viscosity of Hydraulic Fluids


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Kopko, R. J. (Autor:in) / Stambaugh, R. L. (Autor:in)

    Kongress:

    National Fuels and Lubricants and Transportation Meetings ; 1975



    Erscheinungsdatum :

    01.02.1975




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Effect of VJ improver on the in- service viscosity of hydraulic fluids

    Kopko,R.J. / Stambaugh,R.L. / Rohm and Haas | Kraftfahrwesen | 1975



    Evaluation of a Butadiene-Styrene Viscosity Index Improver

    Mitacek, Bill / Yochum, K. H. / Streets, W. L. | SAE | 1976


    Study of Viscosity Index Improver for Fuel Economy ATF

    Umamori, Nobuharu / Kugimiya, Takanori | SAE | 2003


    Study of viscosity index improver for fuel economy ATF

    Umamori,N. / Kugimiya,T. / TonenGeneral Sekiyu,JP | Kraftfahrwesen | 2003