Technical Paper
Technical and Synergistic Approaches Towards the Twenty-First Century Diesel Engine
1997-08-06
972687
Application of various motor vehicle emission control technologies has established a history of success. This success, however, has largely been offset by the constantly growing numbers of vehicles and miles traveled. Heavy-duty diesel engine manufacturers have developed new technologies in response to increasingly stringent emission standards. The diesel engine has long been a champion of fuel economy, with advantages in reliability and durability over other power plants. Yet, controlling NOx, and particulate emissions has been a formidable challenge to the diesel industry because most traditional NOx, control approaches tend to increase particulate emissions, and vice versa. Despite this challenge, there is significant evidence that heavy-duty highway engine manufacturers can achieve substantial emission reductions. Many development programs carried out over the last five years have yielded remarkable results in laboratory demonstrations.