This paper describes the design and construction of a dynamic flow apparatus for the measurement of air entrainment and release characteristics of lubricants, specifically automatic transmission fluids. Data are provided on test method development and correlation with transmission cycling tests. The results obtained using this apparatus and method are compared with those obtained from readily available, and newly developed, foaming and air entrainment tests. The existing tests give an inconsistent picture of fluid foaming and air entrainment characteristics. Foaming tests contained in the major ATF service fill specifications have been found incapable of identifying lubricants with poor fluid level control in an automatic transmission cycling test. The newly developed dynamic flow apparatus is capable of correctly ranking the fluid level control of tested lubricants as determined in the transmission cycling test.


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    Titel :

    Determination of the Air Entrainment Characteristics of Automatic Transmission Fluids Using a Dynamic Flow Apparatus


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Fall Fuels and Lubricants Meeting and Exposition ; 1998



    Erscheinungsdatum :

    1998-10-19




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Determination of the Air Entrainment Characteristics of Automatic Transmission Fluids Using a Dynamic Flow Apparatus

    Colby, P. J. / Tandon, M. / Watts, R. F. et al. | British Library Conference Proceedings | 1998


    Foaming and Air Entrainment in Automatic Transmission Fluids

    Dixon, L. T. / Korcek, S. | SAE Technical Papers | 1976


    Foaming and Air Entrainment in Automatic Transmission Fluids

    Dixon,L.T. / Korcek,S. / Ford Motor,Fuels and Lubr.Dep.,US | Kraftfahrwesen | 1976


    Antiwear characteristics of automatic transmission fluids

    Papay,A. / Sunne,J.P. / Ethyl Petroleum Additives,US | Kraftfahrwesen | 1989