The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2013
Filed:
Feb. 06, 2012
Gregory A. Griffin, Glendale Heights, IL (US);
Timothy Yoon, Northbrook, IL (US);
Jeffrey R. Kelso, Fort Wayne, IN (US);
Adam C. Lack, Willow Springs, IL (US);
Jason B. Arriaga, Fort Wayne, IN (US);
Navtej Singh, Lombard, IL (US);
Gregory A. Griffin, Glendale Heights, IL (US);
Timothy Yoon, Northbrook, IL (US);
Jeffrey R. Kelso, Fort Wayne, IN (US);
Adam C. Lack, Willow Springs, IL (US);
Jason B. Arriaga, Fort Wayne, IN (US);
Navtej Singh, Lombard, IL (US);
International Engine Intellectual Property Company, LLC., Lisle, IL (US);
Abstract
A system and method relate to a reductant dosing for use in the reduction of NOx in an exhaust stream is disclosed. The system and method incorporates a separate first or start-up cartridge and an insulated mantel or housing containing at least one to a plurality of main cartridges. The first and main cartridges store an ammonia adsorbing/desorbing material, which releases ammonia gas upon application of sufficient heat. The start-up cartridge permits the initial release of ammonia gas into the exhaust stream even during start-up of an engine, and because it is separate from the main cartridge, the first cartridge cools faster than the main cartridge and can be replenished with ammonia sooner than the main cartridge. The start-up cartridge is housed in or surrounded by a non-insulating debris shield.