Engine Makers Say ’07 Engines Built on ’02 Models

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ORT LAUDERDALE, Fla. — To reach the government‘s 2007 diesel emissions standards, engine manufacturers will refine changes they made to meet 2002 rules and will try to do it without a further loss of fuel efficiency, representatives told the Diesel Emissions Summit II here last week.

Detroit Diesel’s 2007 engines, “will not change much. For the most part, they will be what we introduced in the past,” said Tim Tindall, director of emissions at Detroit Diesel Corp. Just before the summit convened here, Detroit Diesel Corp. announced it would use cooled exhaust gas recirculation to meet the Environmental Protection Agency’s 2007 regulations, the last manufacturer to announce its technology choice.

Other manufacturers earlier had said they would use EGR, or in Caterpillar’s case, Acert, the same technology they used to meet EPA’s October 2002 standard.

Volvo had considered going to a new method — selective catalytic reduction — in 2007, but for several reasons decided to “stay with the simplest, most proven technology to meet the U.S. regulations,” Anthony Greszler, engineering vice president for Volvo Powertrains, told the summit.

For the full story, see the March 22 edition of Transport Topics. Subscribe today.