Evaluation of Heavy-Duty Engine Exhaust Particulate Traps

This paper summarizes the results of a laboratory effort to evaluate several aspects of the use of exhaust particulate traps with heavy-duty engines. The effort involved: monitoring exhaust temperatures in heavy-duty vehicles operating on a chassis dynamometer; design and evaluation of a particulate trap bypass system; regeneration of particulate traps; and exhaust emissions evaluations of a heavy-duty diesel engine, with and without exhaust particulate traps.