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:
Dec. 31, 2019
Filed:
Mar. 14, 2017
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); B01D 53/94 (2006.01); B01D 53/90 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2066 (2013.01); B01D 53/90 (2013.01); B01D 53/944 (2013.01); B01D 53/9418 (2013.01); B01D 53/9431 (2013.01); F01N 3/2026 (2013.01); F01N 3/2842 (2013.01); B01D 2251/2062 (2013.01); B01D 2251/2067 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/50 (2013.01); B01D 2255/808 (2013.01); B01D 2257/404 (2013.01); B01D 2258/01 (2013.01); F01N 2610/02 (2013.01); F01N 2610/102 (2013.01); F01N 2610/1453 (2013.01); Y02T 10/24 (2013.01); Y02T 10/26 (2013.01);
Abstract
A reducing agent injection device includes a honeycomb structure and a urea spraying device spraying a urea water solution in mist form. In addition, the reducing agent injection device includes a carrier gas inlet that introduces carrier gas f between the urea spraying device and the honeycomb structure. The exhaust gas treatment method of the present invention supplies the urea water solution from the urea spraying device into the cells from the first end face of the honeycomb structure body to generate the ammonia, while introducing the carrier gas f from the carrier gas inlet, and injecting the ammonia to the outside to treat exhaust gas containing NO.