Technical Paper
Lubrication of Low Emission Diesel Engines Part 3
1990-10-01
902178
Analytical information supplemental to data previously described in Parts 1 & 2 (SAE 900814) is presented. Solid-sample injection gas chromatography and X-ray fluorescence were employed to characterize the particulates collected on Pallflex and Fluoropore filters. The complete preweighed filter was thermally desorbed and separated by capillary GC with simultaneous flame ionization (FID), thermal conductivity (TCD), nitrogen/phosphorus (NPD), and flame photometric (FPD) detection. Results are reviewed in terms of: % non-volatiles, % volatiles (fuel and lube oil contributions correlated to various engine speeds and loads), as well as detectable nitrogen, phosphorus, or sulfur compounds.