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:
Apr. 15, 2008
Filed:
Oct. 06, 2004
Applicant:
Koichiro Nakatani, Mishima, JP;
Inventor:
Koichiro Nakatani, Mishima, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/56 (2006.01); B01D 53/94 (2006.01); F01N 3/18 (2006.01); G05D 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An internal combustion engine with an exhaust gas purification device is provided in which the NOx held in a NOx catalyst can be efficiently reduced and purified, and a sufficient amount of NOx can be reduced, thereby making it possible to regenerate the NOx catalyst over a wide range thereof. When processing of releasing and reducing the NOx held in the NOx catalystfor purification, light oil is injected by an addition valveso as to be supplied to the NOx catalysttogether with the exhaust gas, and after the droplet-like light oil adheres to the entire area of the NOx catalyst, the flow rate of the exhaust gas is decreased.