Analysis of Lubricant Oil Film Behavior on the Piston Surface According with Piston Shapes by Means of LIF and PIV

2009-28-0003

12/13/2009

Event
International Mobility Engineering Congress and Exposition
Authors Abstract
Content
The lubrication mechanism is discussed by measuring the oil film behavior. The oil film behavior is evaluated by the oil film thickness and oil film velocity map. The combination method of laser induced fluorescence method (LIF) and particle image velocimetry (PIV) is applied to measure the oil film behavior. The oil film thickness is measured by LIF and its velocity distributions are measured by PIV. The combination method can provide both of the film thickness and velocities simultaneously. The first trial is performed in the model engine for checking the dynamics measurement of the oil film thickness by the LIF. The results show a difference of the oil film thickness distribution with crank angle. The combination method is tested in the engine with 4-cycle and 2-cylinder optical access engine with motoring condition. One cylinder of the engine is sapphire cylinder for observing oil film behavior on the piston skirt. Two clearances of the piston skirt of 30 µm and 100 µm is tested. The characteristics of the oil film thickness distribution depend on the piston skirt clearance. Simultaneously, the oil film velocity vector maps are also obtained.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-28-0003
Pages
8
Citation
KATO, M., FUJITA, K., SUZUKI, H., BABA, Y. et al., "Analysis of Lubricant Oil Film Behavior on the Piston Surface According with Piston Shapes by Means of LIF and PIV," SAE Technical Paper 2009-28-0003, 2009, https://doi.org/10.4271/2009-28-0003.
Additional Details
Publisher
Published
Dec 13, 2009
Product Code
2009-28-0003
Content Type
Technical Paper
Language
English