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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.:

US 9388757 B1

PDFFull Text
Date of Patent:
Jul. 12, 2016

Filed:

Dec. 21, 2012

Exhaust gas purification apparatus

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Inventors:

Ryota Onoe, Toyota, JP;

Oji Kuno, Toyota, JP;

Yuki Aoki, Toyota, JP;

Nobusuke Kabashima, Toyota, JP;

Assignee:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;

Attorney:

Finnegan, Henderson, Garrett & Dunner, LLP

Primary Examiner:

Jonathan Matthias

Int. Cl.
CPC ...
B01J 35/00 (2006.01); F02D 41/02 (2006.01); B01J 23/63 (2006.01); F02D 41/14 (2006.01); F01N 3/08 (2006.01); B01J 37/02 (2006.01); B01J 35/04 (2006.01); B01J 35/10 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0295 (2013.01); B01D 53/9454 (2013.01); B01D 53/9495 (2013.01); B01J 23/63 (2013.01); B01J 35/002 (2013.01); B01J 35/04 (2013.01); B01J 35/1009 (2013.01); B01J 37/0244 (2013.01); F01N 3/0864 (2013.01); F02D 41/1441 (2013.01); F02D 41/1443 (2013.01); B01D 53/945 (2013.01); B01D 53/9472 (2013.01); B01D 2255/102 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/206 (2013.01); B01D 2255/407 (2013.01); F01N 2510/0682 (2013.01); F02D 2200/0814 (2013.01); Y02T 10/20 (2013.01); Y02T 10/22 (2013.01);
Abstract

The exhaust gas purification apparatusaccording to the present invention is provided with an exhaust gas purification catalyst, an upstream Osensor, a downstream Osensor, and a control sectionthat executes main F/B control and sub-F/B control. This exhaust gas purification apparatuscontains, on a support in a prescribed regionfrom a catalyst-outlet-side endat the downstream side of an exhaust gas purification catalyst, an OSC material having a pyrochlore structure and an OSC material having an oxygen storage rate that is faster than that of the OSC material having a pyrochlore structure.

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