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.:

US 10876453 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2020

Filed:

Jun. 26, 2019
Applicant:

Faurecia Emissions Control Technologies, Usa, Llc, Columbus, IN (US);

Inventor:

Christopher S. Chapman, Columbus, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); F01N 2610/02 (2013.01);
Abstract

An over-the-road vehicle including an engine unit and an engine-integrated exhaust treatment system is disclosed. The engine-integrated exhaust treatment system can selectively reduce nitrous oxides (NOx) in exhaust gases from the engine unit. The engine-integrated exhaust treatment system includes a reagent doser integrated into the engine unit and a catalyst in fluid communication with the engine unit. The reagent doser injects aqueous urea solution into at least one cylinder of the engine unit without fuel while fuel is injected into at least one other cylinder of the engine unit for combustion. The aqueous urea solution is converted in the cylinder to ammonia gas that is mixed with exhaust gases from the other cylinders. This mixture is then exposed to the catalyst to encourage reduction of NOx in the exhaust gases before they are discharged to atmosphere.


Find Patent Forward Citations

Chapman, Christopher. (2020). Vehicle having an engine-integrated exhaust treatment system with in-cylinder ammonia creation (U.S. Patent No. 10876453). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10876453

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