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:
Mar. 18, 2014
Filed:
Aug. 10, 2009
Hitoshi Onodera, Yokosuka, JP;
Masayuki Fukuhara, Kisarazu, JP;
Hiroshi Akama, Zushi, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
An exhaust gas purifying system () includes: a NOx purifying catalyst () that is disposed in an exhaust gas flow path () to purify nitrogen oxide; and an HC generator () that is disposed upstream of the NOx purifying catalyst () in the exhaust gas flow path () to generate at least one of acetylene, a hydrocarbon with a carbon number of 2 to 5 other than acetylene, and an aromatic hydrocarbon from a hydrocarbon contained in an exhaust gas. In addition, an exhaust gas purifying method using the exhaust gas purifying system includes the step of adjusting an oxygen concentration in the exhaust gas supplied to the HC generation catalyst (A,A) to 0.8 to 1.5 vol % when an air-fuel ratio is stoichiometric or rich.