Results of North American Field Trials Using Diesel Filters with a Copper Additive for Regeneration

SAE Paper 930131 outlined initial work performed on a diesel particulate filter system using a copper additive for regeneration. Laboratory evaluations of soot oxidation, fuel stability, and emissions reductions were presented along with preliminary field data.

Since then, a total of thirty-four buses have been included in the North American fleet trials. The buses are powered by different engines and engine configurations. Results of the field trial are presented along with problems encountered and their resolution.