Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency

941984

10/01/1994

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
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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DOI
https://doi.org/10.4271/941984
Pages
10
Citation
Meitzler, A., and Shu, B., "Cavitation Thresholds of Engine Oils as Functions of Temperature and Frequency," SAE Technical Paper 941984, 1994, https://doi.org/10.4271/941984.
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Publisher
Published
Oct 1, 1994
Product Code
941984
Content Type
Technical Paper
Language
English