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. 23, 2012
Filed:
Oct. 13, 2009
Andrei Makartchouk, Hinsdale, IL (US);
Andrei Makartchouk, Hinsdale, IL (US);
International Engine Intellectual Property Company, LLC, Lisle, IL (US);
Abstract
A device and method for catalytic reduction of NOx in gaseous products of combustion by directing the products of combustion through a particulate filter () and then into a mixing zone () through separate flow passages () at respective velocities greater than that at which products of combustion leave the filter, by causing an injector () to introduce urea solution through a nozzle () aimed toward the mixing zone along a slant direction () to, and across, flow entering the mixing zone through a first () of the separate flow passages and ultimately toward a far wall () of the mixing zone relative to the nozzle while directing exhaust flow entering the mixing zone through a second () of the separate flow passages to enter the mixing zone between the first flow passage and far wall, and by directing flow leaving the mixing zone through an SCR catalyst ().