Technologies and costs for on-road, heavy-duty engines meeting 2004 emissions standards

摘要

Technologies and incremental costs for meeting the proposed 2004 U.S. emissions standards for heavy-duty diesel engines are discussed in this paper. Manufacturers will most likely use a combination of technologies including reoptimized combustion chambers, fuel systems, air handling systems, electronic controls and aftertreatment. First year production incremental costs are estimated to range from between $257 and $467 to meet the new standards.