Emissions from In-Use 1970-1971 Diesel-Powered Trucks and Buses 741006
A fleet of 64 heavy-duty 1970-71 model trucks and buses powered by a variety of diesel engines were tested periodically to determine exhaust smoke behavior. Smoke tests were made when the vehicle was new or nearly new and at four month intervals thereafter, or until 160,934 km (100,000 miles) odometer reading was reached. Gaseous emissions of hydrocarbon (HC), carbon monoxide (CO), and nitric oxide (NO) were measured at one point early in the project. Both smoke and gaseous emission tests were performed with chassis versions of the engine dynamometer Federal Test Procedures (FTP). Results in terms of “a” (acceleration), “b” (lugging), and “c” (peak) smoke factors versus mileage are reported for the 13 engine-vehicle-application groupings.
Citation: Springer, K., White, J., and Domke, C., "Emissions from In-Use 1970-1971 Diesel-Powered Trucks and Buses," SAE Technical Paper 741006, 1974, https://doi.org/10.4271/741006. Download Citation
Author(s):
Karl J. Springer, John T. White, Charles J. Domke
Affiliated:
Environmental Protection Agency
Pages: 22
Event:
International Automobile Engineering and Manufacturing Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Carbon monoxide
Diesel / compression ignition engines
Environmental testing
Buses
Trucks
Test procedures
Emissions certification
Fleets
Vehicle acceleration
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