• SwRI adding four more ’07 diesels

    The Southwest Research Institute (SwRI) is evaluating four new engines for its heavy-duty diesel engine benchmarking program, which already includes data from 10 previously studied ‘07 diesel models
    July 20, 2007

    The Southwest Research Institute (SwRI) is evaluating four new engines for its heavy-duty diesel engine benchmarking program, which already includes data from 10 previously studied ‘07 diesel models.

    SwRI said it’s benchmarking a Cummins ISB diesel engine from a Dodge Ram pickup truck plus three heavy heavy-duty diesel engines – the Caterpillar C15, Cummins ISX and Volvo D13 . The program will focus on engine performance and fuel consumption associated with new exhaust emissions control technology and the use of ultra-low sulfur diesel (ULSD) fuel.

    Mike Ross, a program manager in the SwRI’s engine, emissions and vehicle research division, said the data sets for these engines include a 200-point steady-state map of performance, injection timing, heat rejection, gaseous emissions and smoke.

    He noted that within that matrix are 22 points that include high-speed cylinder pressure, heat release and particulate data; European Stationary Cycle (ESC) and U.S. FTP transient testing; constant-speed step load transient response tests; engine teardown; and cylinder head flowbench evaluations.

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