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:
Oct. 11, 2016
Filed:
Dec. 03, 2012
Junichi Matsuo, Susono, JP;
Nobumoto Ohashi, Shizuoka-ken, JP;
Shigeki Nakayama, Gotenba, JP;
Kenji Sakurai, Uji, JP;
Akira Mikami, Susono, JP;
Keishi Takada, Kanagawa-ken, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiroshi Otsuki, Gotenba, JP;
Ichiro Yamamoto, Kariya, JP;
Junichi Matsuo, Susono, JP;
Nobumoto Ohashi, Shizuoka-ken, JP;
Shigeki Nakayama, Gotenba, JP;
Kenji Sakurai, Uji, JP;
Akira Mikami, Susono, JP;
Keishi Takada, Kanagawa-ken, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiroshi Otsuki, Gotenba, JP;
Ichiro Yamamoto, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
In an exhaust gas purification system for an internal combustion engine provided with a filter supporting an SCR catalyst, the present invention is intended to suppress HC and CO from being discharged to the outside at the time of the execution of filter regeneration processing, and to carry out the filter regeneration processing in an efficient manner. In the present invention, a post-catalyst having an oxidation function is arranged in an exhaust passage at the downstream side of the filter. Then, when the temperature of the post-catalyst is lower than a predetermined activation temperature at the time the execution of the filter regeneration processing is requested, the temperature of the post-catalyst is raised by carrying out control of raising the temperature of the exhaust gas discharged from the internal combustion engine, and control increasing the flow rate of the exhaust gas, before the execution of the filter regeneration processing.