Clean air reciprocating internal combustion engine
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United States of America Patent
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Issued Date -
Nov 18, 2010
app pub date -
Jun 19, 2009
filing date -
May 14, 2009
priority date (Note) -
Abandoned
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Abstract
A method is provided for achieving low NOx operation of homogeneous charge, lean burn reciprocating internal combustion engines. The method incorporates providing a fuel-air compression charge having a lean fuel-air ratio of less than the lean flammable limit, compressing the fuel-air compression charge to raise the adiabatic flame temperature to a predetermined value above the lean flammable limit, and igniting the compressed charge for combustion. A non-platinum oxidation catalyst may be included to control carbon monoxide emissions in the exhaust.
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