DETROIT Diesel Corporation used the 35th annual Mid-America Trucking Show March 23-25 to launch its redeveloped Series 60, MBE 4000, and MBE 900 diesel engines. Management proclaimed that the company is fully ready to meet the 2007 engine emission requirements set by the Environmental Protection Agency.
“We're definitely ready for EPA '07,” said Carsten Reinhardt, president and chief executive officer of Detroit Diesel Corporation. “We have been working on not just meeting the new emissions standards, but enhancing our three engines set to launch next January. We also have our service, technical support, and manufacturing teams ready to support the engines.”
The new emissions standards require engine makers to reduce nitrogen oxide emissions by more than 50% and particulate matter emissions by 90% for all on-highway diesel engines produced in 2007. The engines also will use specially formulated engine oil and ultra low sulfur diesel fuel.
“Detroit Diesel Corporation's 2007 engine models have been through rigorous testing in our test cells and in real world applications,” explained Reinhardt. “Given that we have been working on redeveloping these engines since 2003, we are confident they will meet the high expectations of our customers.”
The 2007 Series 60 heavy-duty engine will continue to be a fuel economy leader among Class 8 diesel engines. The 2007 Series 60 is equipped with an exhaust aftertreatment system that replaces the muffler assembly in the exhaust system. The aftertreatment system dramatically reduces the amount of particulate emissions released into the air. This unit includes a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF) located in the exhaust system. During normal operation, exhaust heat and the catalyst work together to oxidize soot.
Additionally, the engine's exhaust gas recirculation (EGR) System has been optimized to dramatically cut NOx formation by returning a measured amount of exhaust flow to the cylinders and lower combustion temperatures. The newly designed system features a high-capacity, tube-and-shell EGR cooler that is more rugged than the previous model.
Turning to the 2007 MBE 900 medium-duty diesel engine, standard displacement will grow to 7.2-liters. Previous MBE 900 models covered the power range with four different engine configurations. The 2007 MBE 900 will feature just one displacement, which will offer more power and durability. The MBE 900 is available in ratings from 190 hp to 300 hp and 520 to 860 lb-ft torque.
The MBE 4000 heavy-duty diesel engine also has new torque ratings along its power range, which runs from 350 to 450 hp with 1250 to 1650 lb-ft torque. The MBE 4000 can now be specified with 370 hp with 1250 lb-ft torque. For customers with weight sensitive applications, the MBE 4000 now offers 450 hp rating with 1650 lb-ft torque.
The MBE 4000 comes with a standard engine brake that provides up to 370 braking horsepower. A premium engine brake option is available with up to 580 braking horsepower. The MBE 4000 is ideal for many vocational applications, such as regional distribution and bulk hauling.
Both the MBE 900 and MBE 4000 engines will use the DDEC VI electronic control unit, which will also be standard on the Detroit Diesel Series 60 heavy-duty engine. By offering the same electronic platform across all of Detroit Diesel on-highway engines, fleet managers will be able to streamline diagnostic tools, technician training, and parts availability. The DDEC VI offers increased microprocessor power and enhanced diagnostics.
Both MBE engines will feature similar aftertreatment technology to meet 2007 emissions standards. The MBE 900 and MBE 4000 will use optimized EGR to treat NOx and an aftertreatment system to reduce particulate matter emissions. The system replaces standard mufflers with a diesel oxidation catalyst and particulate filter.
The MBE 900 and MBE 4000 will also feature an electrostatic breather to address crankcase emissions requirements. The device will take oil out of crankcase vapors and return the oil back into the crankcase.
The MBE 900 and MBE 4000 will have a new fuel system multi-injection capability. The system will help meet emissions targets while maximizing fuel economy and performance. The new fuel system enables the MBE 900 and MBE 4000 to run smoother and improves the overall sound quality of the engines.