METHOD FOR PURIFYING THE EXHAUST GASES OF AN INTERNAL COMBUSTION ENGINE HAVING A CATALYTIC CONVERTER
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United States of America Patent
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Issued Date -
Mar 22, 2012
app pub date -
May 20, 2010
filing date -
May 22, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a method for purifying the exhaust gases of an internal combustion engine having a catalytic converter which comprises oxygen storage components. The invention is concerned particularly with the restoration of the optimum filling degree of the oxygen storage components for regulated stoichiometric operation after the engine has been operated under lean conditions for a relatively short or relatively long period of time.
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