Ducted Fuel Injection for Soot Reduction

Typical direct-injection engines, such as diesel engines, can produce soot due to fuel-rich combustion conditions. Filters and catalytic converters are currently used to reduce soot and harmful emissions, but these systems are expensive, large, complex, and they penalize engine efficiency. Ducted fuel injection technology was developed for the reduction of soot and other EPA-regulated emissions in direct-injection engines. The ducted fuel injection technology reduces soot at the point of combustion, thereby reducing the need for these after-treatment devices and their associated costs.