Abstract
Summary The interest in emissions from heavy diesel engines has awaken recently. This has led to intensified engine research and development. The short-term solution has been to adjust parameters on existing engines, equipping them with charge-coolers and, in some cases, with particulate traps. Some of these measures have resulted in a slightly reduced fuel efficiency. long-term solution will be new engine generations, primarily developed to produce low emissions, both gaseous and particulate. New injection systems with facilities for timing control and rate shaping will enable very low levels of particulate and nitrogen oxide emissions to be obtained. In combination with much improved hydrocarbon fuel, these engines will require no particulate traps. However, to eliminate all nuisance, catalytic converters will probably be used to eliminate hydrocarbon residue in the exhaust gases. The diesel engine is currently the most fuel-efficient power unit, and it is constantly improving. The introduction of turbo-compounding will help further reduce fuel consumption, and thus the emissions of carbon dioxide from the diesel engine.
Published Version
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