Emission reduction from naturally aspirated diesel engines is one of the more challenging problems for off-road vehicles in particular. An engine is being converted to operate on Dimethyl Ether (DME), and tests show the elimina-tion of smoke, large reductions in oxides of nitrogen and a large reduction in engine noise when operated on DME. Injection system performance is changed considerably with DME, and work has shown the need for a different injection system design. Emissions of un-burned fuel and carbon monoxide are particularly sensitive to fuel injection system adjustment.
|Effective start/end date||01/06/1995 → …|
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