Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 1, 2010
Patent Application Number
11532867
Date Filed
September 18, 2006
Patent Primary Examiner
Patent abstract
A method of managing vapors generated from an ammonia-containing reductant delivery system for an engine of a vehicle, comprising of during at least a portion of engine-off conditions, storing ammonia containing vapors generated in the reductant delivery system, and after said storing and during at least a portion of engine operation, purging said stored ammonia into an exhaust of the engine to react in a catalyst in the exhaust flow.
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