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:
Nov. 19, 2019
Filed:
Mar. 16, 2016
Applicant:
Isuzu Motors Limited, Tokyo, JP;
Inventors:
Assignee:
ISUZU MOTORS LIMITED, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F01N 3/08 (2006.01); B01D 53/94 (2006.01); F01N 3/36 (2006.01); F02D 41/04 (2006.01); F02D 41/40 (2006.01); F01N 3/20 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0275 (2013.01); B01D 53/94 (2013.01); B01D 53/944 (2013.01); B01D 53/9422 (2013.01); B01D 53/9477 (2013.01); B01D 53/9495 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/0871 (2013.01); F01N 3/2006 (2013.01); F01N 3/206 (2013.01); F01N 3/2033 (2013.01); F01N 3/36 (2013.01); F01N 9/002 (2013.01); F02D 41/0235 (2013.01); F02D 41/04 (2013.01); F02D 41/40 (2013.01); F01N 2430/06 (2013.01); F01N 2430/085 (2013.01); F01N 2550/03 (2013.01); F01N 2610/03 (2013.01); F01N 2610/146 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1614 (2013.01); F01N 2900/1821 (2013.01); F02D 2200/0806 (2013.01); Y02T 10/26 (2013.01);
Abstract
An exhaust purification system is provided with a NOx-occlusion-reduction-type catalystthat occludes NOx in exhaust when the exhaust is in a lean state and reduces and purifies the occluded NOx when the exhaust is in a rich state, and a NOx purge rich control unitfor reducing and purifying NOx occluded in the NOx-occlusion-reduction-type catalystby putting the exhaust into the rich state by repetitively performing fuel injection control of at least one of post injection and exhaust pipe injection at a predetermined interval.