Brooks Kushman P.C.
Vehicle sulfur oxide trap and related method
An automobile exhaust system includes a catalytic converter and a modified NOx trap wit improved sulfur tolerance. Sulfur oxide has a deleterious effect on the performance of nitrogen oxide traps. In the modified NOx trap, a sulfur oxide trap is integrated with a nitrogen oxide trap by coating the catalyst contained within a nitrogen oxide trap with a mixed oxide layer of calcium oxide and magnesium oxide. The NOx trap is regenerated by heating at elevated temperature for a short time period.
Ford Global Technologies, LLC
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Amy Jun William Lewis Henderson Mohinder Singh
Berris Li Watkins Chattha