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:
Jul. 05, 2016
Filed:
Sep. 20, 2011
Applicants:
Daisuke Shibata, Numazu, JP;
Toru Kidokoro, Hadano, JP;
Kazuya Takaoka, Susono, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 3/035 (2006.01); F01N 13/00 (2010.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F01N 3/206 (2013.01); B01D 53/9477 (2013.01); F01N 3/035 (2013.01); F01N 3/106 (2013.01); F01N 3/208 (2013.01); F01N 13/009 (2014.06); B01D 53/9418 (2013.01); B01D 53/9495 (2013.01); F01N 2900/0418 (2013.01); F01N 2900/0601 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1411 (2013.01); F01N 2900/1622 (2013.01); Y02T 10/24 (2013.01);
Abstract
An exhaust gas purification apparatus including a filter, an NOx selective reduction catalyst at the downstream side of the filter, a supply device for supplying a reducing agent to the NOx selective reduction catalyst, and a PM sensor for detecting an amount of particulate matter in an exhaust gas at the downstream side of the NOx selective reduction catalyst. A supply decrease part makes an amount of supply of the reducing agent smaller in cases where at least one of several conditions is satisfied.