Detroit Diesel Corp (DDC), a subsidiary of DaimlerChrysler, is ready to provide a full line of ratings for its 2002-compliant Series 60 engine. DDC said it expects about 95% of all current ratings will be available by the Oct 1, 2002, deadline.
John Morelli, vice-president in charge of the 2002 Engine Program for DDC, said, “The standard maximum engine speed will remain at 2100 rpm and, depending on rating and application, the fuel economy of 2002 Series 60 engines is now in a range of 2% to 4% less than current engines.”
Morelli said DDC still has a year of development time in front of them, and its goal is to continue improving fuel economy until any difference compared with current ratings is insignificant.
The overhead camshaft design of the Series 60 engine allows for high injection pressure needed to meet the new standards. When higher injection pressure is combined with exhaust gas recirculation and advanced turbocharger technology, the result is a low emissions engine with superior performance.
DDC is using an Exhaust Gas Recirculation (EGR) system combined with a redesigned turbocharger to meet 2002 emission requirements. The firm said its 2002 engines have been in use for more than a year in the stop-and-go transit bus market, and it expects some 3,500 of those engines will be running throughout the United States and Canada by October 2002.