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Fuel quantity modulation in pilot ignited engines

United States Patent

7,044,103
May 16, 2006
View the Complete Patent at the US Patent & Trademark Office
An engine system includes a first fuel regulator adapted to control an amount of a first fuel supplied to the engine, a second fuel regulator adapted to control an amount of a second fuel supplied to the engine concurrently with the first fuel being supplied to the engine, and a controller coupled to at least the second fuel regulator. The controller is adapted to determine the amount of the second fuel supplied to the engine in a relationship to the amount of the first fuel supplied to the engine to operate in igniting the first fuel at a specified time in steady state engine operation and adapted to determine the amount of the second fuel supplied to the engine in a manner different from the relationship at steady state engine operation in transient engine operation.
May; Andrew (Wauwatosa, WI)
Dresser, Inc. (Addison, TX)
10/ 919,419
August 16, 2004
The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of DE-FC02 01CH11080 awarded by the Department of Energy.