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.

Date of Patent:
Sep. 14, 2021

Filed:

Oct. 24, 2019
Applicant:

Cataler Corporation, Kakegawa, JP;

Inventors:

Makoto Tsuji, Kakegawa, JP;

Hiroto Imai, Kakegawa, JP;

Kou Sugawara, Kakegawa, JP;

Shintaro Kobayashi, Kakegawa, JP;

Assignee:

CATALER CORPORATION, Kakegawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/08 (2006.01); F01N 11/00 (2006.01); B01D 53/94 (2006.01); F01N 3/20 (2006.01); F01N 3/035 (2006.01); F01N 3/28 (2006.01);
U.S. Cl.
CPC ...
F01N 11/007 (2013.01); B01D 53/9431 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/2066 (2013.01); F01N 3/035 (2013.01); F01N 3/2828 (2013.01); F01N 2330/06 (2013.01); F01N 2370/02 (2013.01); F01N 2510/06 (2013.01); F01N 2550/02 (2013.01);
Abstract

An exhaust gas-purifying system includes an exhaust gas-purifying unit that includes one or more exhaust gas-purifying catalysts, is supplied with the exhaust gas from a combustion engine, and purifies the exhaust gas so that the exhaust gas can be released to the atmosphere, a sensor that detects a concentration of nitrogen oxides contained in the purified exhaust gas, and a processing section that makes a judgment with respect to at least one of the exhaust gas-purifying catalysts, as to whether or not a performance is maintained at a sufficient level, based on the concentration detected by the sensor.


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