Measurements of the Lubricant Film Thickness in the Cylinder of a Firing Diesel Engine Using LIF

Paper #:
  • 982435

Published:
  • 1998-10-19
Citation:
Arcoumanis, C., Duszynski, M., Lindenkamp, H., and Preston, H., "Measurements of the Lubricant Film Thickness in the Cylinder of a Firing Diesel Engine Using LIF," SAE Technical Paper 982435, 1998, https://doi.org/10.4271/982435.
Pages:
11
Abstract:
A laser-induced fluorescence (LIF) system has been developed to obtain measurements of the instantaneous lubricant film thickness in the piston-cylinder assembly of a firing single-cylinder, direct-injection diesel engine. Measurements were made at top-dead-centre (TDC), mid-stroke and bottom-dead-centre (BDC) position by means of three fibre optic probes inserted into the cylinder liner and mounted flush with its surface. Following extensive repeatability tests, the cycle-averaged lubricant film thickness was estimated for different multi-grade oils as a function of engine speed, load and temperature. The results quantified the dependence of the film thickness ahead, under and behind the piston rings on oil chemistry and viscometric properties, thus confirming the important role of the LIF technique in the development and formulation of new engine oils.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2013-02-20
Training / Education
2013-04-09
Training / Education
2009-12-15
Technical Paper / Journal Article
2010-10-25
Training / Education
2018-06-05