EXHAUST GAS RECIRCULATION METHODS AND APPARATUS FOR REDUCING NOx EMISSIONS FROM INTERNAL COMBUSTION ENGINES
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app pub date -
Nov 13, 2007
filing date -
Oct 2, 2002
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Abandoned
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Abstract
A method of operating an internal combustion engine employs exhaust gas recirculation (EGR) in combination with directly injected gaseous fuels that are burned within the engine in a stratified combustion mode. An engine that employs EGR includes an injector adapted to provide a high pressure quantity of fuel into a combustion chamber within a given pressure range, at a given angle and through a nozzle hole size to help provide for EGR tolerance and, consequently, reduce emissions.
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