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Method of Water/Fuel Co-Injection for Emissions Control During Transient Operating Conditions of a Diesel Engine

Abstract: 

Engine operating parameters are monitored during each combustion cycle of a diesel engine, and changes in engine load demand are sensed. In response to sensing a change in engine load demand, an engine operating condition indicative of either a high smoke or a high NOx condition, or both, is determined, and water is co-injected with fuel during the transient period in which there is a high smoke or high NOx condition, or both. The co-injection of water and fuel is terminated when it is determined that there is no longer an engine operating condition during the transient period indicative of either a high smoke or a high NOx condition.`

Patent Number: 
6,460,491
Date Of Issue: 
10/08/2002
Inventors: 

Rudolf H. Stanglmaier;Daniel W. Stewart (formerly Daniel W. Dickey)