Emissions Control of Gasoline Engines for Heavy-Duty Vehicles 750903
This paper summarizes an investigation of reductions in exhaust emission levels attainable using various techniques appropriate to gasoline engines used in vehicles over 14,000 lbs GVW. Of the eight gasoline engines investigated, two were evaluated parametrically resulting in an oxidation and reduction catalyst “best combination” configuration. Four of the engines were evaluated in an EGR plus oxidation catalyst configuration, and two involved only baseline tests. Test procedures used in evaluating the six “best combination” configurations include: three engine emission test procedures using an engine dynamometer, a determination of vehicle driveability, and two vehicle emission test procedures using a chassis dynamometer. Dramatic reductions in emissions were attained with the catalyst “best combination” configurations. Engine durability, however, was not investigated.
Citation: Urban, C., Springer, K., and McFadden, J., "Emissions Control of Gasoline Engines for Heavy-Duty Vehicles," SAE Technical Paper 750903, 1975, https://doi.org/10.4271/750903. Download Citation
Author(s):
Charles M. Urban, Karl J. Springer, John J. McFadden
Affiliated:
Southwest Research Institute, Environmental Protection Agency
Pages: 13
Event:
SAE Automobile Engineering and Manufacturing Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Emissions control
Exhaust emissions
Environmental testing
Test procedures
Emissions certification
Catalysts
Exhaust gas recirculation (EGR)
Emissions
Gasoline
Corrosion
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