Oil film thickness is one of the most important issues for optimization of bearing design. A technique has been developed to measure oil film thickness by noting the change in capacitance between the shaft and a thin-film electrode of several micrometers thickness formed on the surface of a bearing. The authors applied this technique to the main journals of an automobile engine and measured the oil film thickness up to maximum speed and full load. The oil film thickness became thinner with increased engine load, and then turned thicker with increased engine speed.
Measurement of Oil Film Thickness in the Main Bearings of an Operating Engine using Thin-Film Electrode
Sae Int. J. Fuels Lubr
Sae International Journal of Fuels and Lubricants
SAE International Powertrains, Fuels and Lubricants Meeting ; 2011
Sae International Journal of Fuels and Lubricants ; 5 , 1 ; 425-433
2011-08-30
9 pages
Conference paper
English
British Library Conference Proceedings | 2009
|Measurement of Oil Film Pressure in the Main Bearings of an Operating Engine Using Thin-Film Sensors
SAE Technical Papers | 2008
|Measurement of oil film pressure in the main bearings of an operating engine using thin-film sensors
Automotive engineering | 2008
|New thin-film sensors for engine bearings
Automotive engineering | 2004
|SAE Technical Papers | 1992
|