Expected Controls-RACT-

Spark-Ignited Engine Type Control NOx Limit

Low Fuel Consumption Leaning air/fuel ratio 350 ppmv

High Fuel Consumption

- Rich Burn Catalyst (NSCR) 50 ppmv/90% reduction

Prestratified Charge

Leaning air/fuel ratio

- Lean Burn Leaning air/fuel ratio 125 ppmv/80% reduction

Clean Burn Controls