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:
Mar. 22, 2016
Filed:
Feb. 02, 2012
Applicants:
MI Yan, Columbus, IN (US);
Baohua Qi, Columbus, IN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/00 (2006.01); F01N 3/10 (2006.01); F01N 3/025 (2006.01); F01N 3/20 (2006.01); F01N 5/02 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F01N 3/103 (2013.01); F01N 3/0253 (2013.01); F01N 3/206 (2013.01); F01N 3/2013 (2013.01); F01N 3/2033 (2013.01); F01N 5/02 (2013.01); F01N 9/002 (2013.01); F01N 2240/02 (2013.01); F01N 2240/30 (2013.01); F01N 2250/02 (2013.01); F01N 2560/025 (2013.01); F01N 2560/06 (2013.01); F01N 2560/08 (2013.01); F01N 2570/14 (2013.01); F01N 2610/03 (2013.01); F01N 2900/0408 (2013.01); F01N 2900/0411 (2013.01); F01N 2900/0416 (2013.01); F01N 2900/0602 (2013.01); F01N 2900/14 (2013.01); Y02T 10/16 (2013.01); Y02T 10/26 (2013.01); Y02T 10/47 (2013.01);
Abstract
An aftertreatment device for reducing nitrogen oxides (NOx), particulate matter (PM), hydrocarbon (HC), and carbon monoxide (CO) generated by a compression-ignition (CI) engine. In this device, lean exhaust air generated in the CI engine is converted to rich exhaust air, and energy used for the conversion is recycled using an energy recovery device. The result rich exhaust air then pass through an oxidation catalyst, where NOx is reduced with CO and HC.