Preliminary Evaluation of a Porous Metal Diesel Particulate Filter 892493
Because diesel engines operate on an efficient thermodynamic cycle at a low economic cost, their particulate pollution has been tolerated. However, the Environmental Protection Agency is now setting more stringent particulate emission standards to be met by all diesel-powered vehicles. One candidate system to meet the new EPA requirements is a continuously regenerative porous metal trap oxidizer device. A test program was initiated to evaluate the design and performance of this diesel particulate filter (DPF) on a single-cylinder diesel engine. This DPF is comprised of a rotating porous metal filter element driven by a variable speed electric motor, a heater element for filter regeneration, a nozzle for controlling the particulate deposit pattern on the filter element, a scraping device to insure proper filter regeneration, and a stainless steel housing. A 20-micrometer powder metal element and a 21-micrometer fiber metal element were tested. Collection efficiences in the 70 to 80 percent range were obtained for the optimum combination of heating and scraping for the 20-micrometer powder metal element at a pressure drop across the DPF of under 13 inches of water.
Citation: Brock, S., Tidona, R., Cernansky, N., and Lefkowitz, L., "Preliminary Evaluation of a Porous Metal Diesel Particulate Filter," SAE Technical Paper 892493, 1989, https://doi.org/10.4271/892493. Download Citation
Author(s):
S. H. Brock, R. J. Tidona, N. P. Cernansky, L. R. Lefkowitz
Affiliated:
Drexel University Philadelphia, PA, Compix Enterprises, Inc. Latham, NY
Pages: 16
Event:
SAE International Truck and Bus Meeting and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Diesel particulate filters
Environmental protection
Diesel / compression ignition engines
Particulate matter (PM)
Electric motors
Environmental regulations and standards
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