Lubrication of Low Emission Diesel Engines Part 3

W. Rocco Pistillo; Carol L. Schiller

doi:10.4271/902178

1990-10-01

Lubrication of Low Emission Diesel Engines Part 3 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.

XRF data were obtained from the Fluoropore filters to determine the concentrations of typical additive metals Mg, Ca, P, and Zn present in the particulate that would be indicative of oil consumption mechanisms and any tendencies for additive-sourced materials to selectively be captured as particulate matter.

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Lubrication of Low Emission Diesel Engines Part 3 902178

SAE MOBILUS