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:
Sep. 20, 2016
Filed:
Sep. 27, 2013
Applicant:
Isuzu Motors Limited, Tokyo, JP;
Inventors:
Assignee:
ISUZU MOTORS LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N 3/36 (2006.01); F02D 41/14 (2006.01); F02D 41/02 (2006.01); F02D 41/40 (2006.01); B01D 53/94 (2006.01); F01N 3/021 (2006.01); F01N 3/08 (2006.01); F01N 9/00 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 11/00 (2006.01); F01N 3/025 (2006.01);
U.S. Cl.
CPC ...
F02D 41/1446 (2013.01); B01D 53/9431 (2013.01); F01N 3/021 (2013.01); F01N 3/025 (2013.01); F01N 3/0814 (2013.01); F01N 3/106 (2013.01); F01N 3/36 (2013.01); F01N 9/00 (2013.01); F02D 41/024 (2013.01); F02D 41/027 (2013.01); F02D 41/405 (2013.01); F01N 3/0253 (2013.01); F01N 3/103 (2013.01); F01N 3/2033 (2013.01); F01N 11/002 (2013.01); F01N 2430/06 (2013.01); F01N 2430/085 (2013.01); F01N 2560/06 (2013.01); F01N 2560/14 (2013.01); F01N 2570/14 (2013.01); F01N 2610/03 (2013.01); F01N 2900/0408 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1602 (2013.01); F01N 2900/1621 (2013.01); F01N 2900/1626 (2013.01); F02D 41/029 (2013.01); F02D 41/0275 (2013.01); F02D 2200/021 (2013.01); Y02T 10/26 (2013.01); Y02T 10/44 (2013.01); Y02T 10/47 (2013.01);
Abstract
Exhaust gas of an internal combustion engine is made to pass through an exhaust gas purification device after passing through a pre-oxidation catalyst. When a first temperature of the exhaust gas on an upstream side of the device is lower than a first set temperature, multistage temperature rise injection is performed. When the first temperature becomes the first set temperature or more, post injection is performed in addition to the multistage temperature rise injection, and feedback control of the post injection is executed so that a second temperature of the exhaust gas on a downstream side of the exhaust gas purification device becomes a second set temperature.