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Detroit Diesel's new DD15 engine

By optimizing the engine, SCR can contribute to a host of new technologies that make the proven power and preferred performance of diesel engines more available for passenger vehicle, light and medium-duty truck applications. It will also be used to retrofit older trucks and will be adapted for use in heavy-duty off-road and vocational trucks.

Recent engine introductions, such as Detroit Diesel's new DD13 and DD15 engines, were developed in concert with the U.S. Department of Energy's (DOE) 21st Century Truck Partnership which focuses on new ways to move freight while reducing pollution and dependency on foreign oil. The program, guided by the U.S. DOE Office of Energy Efficiency and Renewable Energy/Office of Vehicle Technologies leads to the development of advanced technologies in the areas of combustion, emission control and system integration.

Detroit Diesel, in collaboration with the DOE, developed key methodologies for controlling the physical and chemical processes that occur during particulate aftertreatment soot capture and regeneration. Today, the new Detroit Diesel engines deliver up to 50 extra horsepower without spending an extra drop of fuel. The new engines use turbo compounding technologies that convert heated exhaust into extra energy for heavy-duty trucks, and feed that power straight into the drivetrain. To date, this extra energy also results in increased fuel mileage of up to 5% on most on-the-road applications.