NOx control during load increases
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United States of America Patent
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May 7, 2013
Grant Date -
Jul 28, 2011
app pub date -
Jan 28, 2010
filing date -
Jan 28, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A method of controlling a diesel engine connected to a load, the method including the steps of detecting an increased torque requirement and matching a fuel flow with an airflow. The detecting an increased torque requirement step detects an increased torque requirement for the engine, the increased torque requirement taking place during a period of time. The matching a fuel flow step matches a fuel flow with an airflow going to the engine during the increased torque requirement, the matching step keeps the airflow and the fuel flow during the period of time at a substantially stoichiometric level enabling the use of a three-way catalyst to reduce NOx emissions during transients.
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