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. 30, 2017
Filed:
Nov. 16, 2012
Akira Mikami, Susono, JP;
Shigeki Nakayama, Gotenba, JP;
Nobumoto Ohashi, Shizuoka-ken, JP;
Keishi Takada, Kanagawa-ken, JP;
Kenji Sakurai, Uji, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiroshi Otsuki, Gotenba, JP;
Junichi Matsuo, Susono, JP;
Ichiro Yamamoto, Kariya, JP;
Akira Mikami, Susono, JP;
Shigeki Nakayama, Gotenba, JP;
Nobumoto Ohashi, Shizuoka-ken, JP;
Keishi Takada, Kanagawa-ken, JP;
Kenji Sakurai, Uji, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiroshi Otsuki, Gotenba, JP;
Junichi Matsuo, Susono, JP;
Ichiro Yamamoto, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
An object of the present invention is to appropriately remove, from an exhaust gas, HC, CO, and ammonia flowing out from a filter (SCRF) on which an SCR catalyst is carried. In the present invention, a post-catalystis provided for an exhaust gas passage of an internal combustion engine on a downstream side from SCRF along with a flow of the exhaust gas. The post-catalystis constructed to include an adsorption reduction partwhich adsorbs ammonia and which reduces NOx by using ammonia as a reducing agent, a first oxidation partwhich oxidizes ammonia, and a second oxidation partwhich oxidizes HO and CO.