Baseline Exhaust Emissions from U. S. Army M54A2 LDS 465 Powered Five-Ton Trucks.
SOUTHWEST RESEARCH INST SAN ANTONIO TEX
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Baseline exhaust emissions data were obtained as part of a 20,000-mi test of lube oils in four M54A2 five-ton Army trucks powered by the LDS 465 turbocharged, four-cycle, compression ignition engine. These emissions included odor, smoke and chemicalinstrumental measurements of total unburned hydrocarbons, carbon monoxide, carbon dioxide, oxides of nitrogen, nitric oxide, total aliphatic aldehydes, formaldehyde, acrolein and sulfur dioxide using the latest techniques available. Power checks as well as emissions were obtained at the beginning, end, and at about 6,500 and 12,000 mi duration. The effects of vehicle operating condition and test mileage are presented as part of the analysis of the results. Typical data for two widely used, commercial truck-tractors powered by four-cycle, naturally aspirated and turbocharged engines are indicated to place the military truck emissions in perspective. Limited back-to-back type operation of two vehicles on a commercial barium smoke suppressant fuel additive was conducted periodically and the constant and transient smoke results are presented. In addition to summary and conclusions, recommendations are made to learn more about exhaust emissions from vehicles in the current and future Army inventory. Author
- Combustion and Ignition
- Air Pollution and Control