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. 16, 2018
Filed:
Mar. 14, 2017
Applicant:
Ngk Insulators, Ltd., Nagoya, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/10 (2006.01); 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 2255/20761 (2013.01); B01D 2255/50 (2013.01); B01D 2255/808 (2013.01); B01D 2258/01 (2013.01); F01N 2610/02 (2013.01);
Abstract
A reducing agent injection device includes a first honeycomb structure and a urea spraying device spraying a urea water solution in mist form. A pair of electrode members is formed in the first honeycomb structure. The ratio L/D of length L in the cell extending direction of the honeycomb structure body to diameter D of the cross section perpendicular to the cell extending direction is 0.5 to 1.2. Also, it is preferable that a urea hydrolysis catalyzer is provided in the second end face side of the honeycomb structure body, with a gap from the second end face.