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:
May. 14, 2013
Filed:
Mar. 25, 2009
Minoru Sato, Tokyo, JP;
Sho Shiraga, Tokyo, JP;
Kazuhiko Kawajiri, Tokyo, JP;
Masato Kurahashi, Tokyo, JP;
Minoru Sato, Tokyo, JP;
Sho Shiraga, Tokyo, JP;
Kazuhiko Kawajiri, Tokyo, JP;
Masato Kurahashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An exhaust gas purification device is provided. The device includes: in an exhaust gas passage for a combustion exhaust gas containing a nitrogen oxide, a hydrocarbon, and an oxygen in a larger amount than a theoretical reaction amount with respect to the hydrocarbon to flow therethrough, in order from upstream, a first catalyst part for selectively reducing a nitrogen oxide; a plasma discharge part for generating a plasma; a second catalyst part for selectively reducing a nitrogen oxide; and a purifying catalyst part for purifying a reducing agent.