Cavitation thresholds of 5W30 and 10W30 oils were measured in laboratory experiments using electrically-driven disks of piezoelectric ceramic as sources of mechanical excitation. The technique allows the mechanical-wave power density at which cavitation begins to be observed and calculated from electrical quantities and the volume of the oil sample being tested. Both cavitation turn-on and turn-off thresholds have been measured as functions of temperature and frequency. The temperatures ranged from 20 to 100°C and the frequencies ranged from 50 kHz to 4 MHz. The experiments have shown these oils can be made to undergo cavitation at surprisingly low thresholds.


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    Titel :

    Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Fuels & Lubricants Meeting & Exposition ; 1994



    Erscheinungsdatum :

    1994-10-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Cavitation thresholds of engine oils as functions of temperature and frequency

    Meitzler,A.H. / Shu,B.C. / Ford Motor,US | Kraftfahrwesen | 1994


    Low Temperature Pumpability of Engine oils

    Stambaugh, R.L. | SAE Technical Papers | 1984


    Low Temperature Pumpability of Engine Oils

    Stambaugh,R.L. / Rohm and Haas,US | Kraftfahrwesen | 1984


    Engine oils

    Warring, R.H. | Engineering Index Backfile | 1954


    Low Temperature Flow Properties of Engine Oils

    O'Mara, J. H. / Stambaugh, R. L. | SAE Technical Papers | 1982