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:
Jun. 20, 2017
Filed:
Dec. 27, 2011
Takahiko Fujiwara, Shizuoka-ken, JP;
Norihisa Nakagawa, Numazu, JP;
Kouichi Kimura, Numazu, JP;
Shuntaro Okazaki, Shizuoka-ken, JP;
Keisuke Nagasaka, Susono, JP;
Ichiro Kitamura, Susono, JP;
Satoshi Kamitani, Susono, JP;
Koji Morita, Mishima, JP;
Takahiko Fujiwara, Shizuoka-ken, JP;
Norihisa Nakagawa, Numazu, JP;
Kouichi Kimura, Numazu, JP;
Shuntaro Okazaki, Shizuoka-ken, JP;
Keisuke Nagasaka, Susono, JP;
Ichiro Kitamura, Susono, JP;
Satoshi Kamitani, Susono, JP;
Koji Morita, Mishima, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
An exhaust gas control apparatus for an internal combustion engine, controls an exhaust operation of the internal combustion engine () provided with an exhaust gas purification catalyst () in an exhaust passage (). The exhaust gas control apparatus for the internal combustion engine is provided with; a warming-up device configured to warm up the exhaust gas purification catalyst; and an oxygen supplying device () configured to supply oxygen to the exhaust gas purification catalyst after the end of the warm-up. This makes it possible to preferably desorb sulfur adsorbed to the exhaust gas purification catalyst during warm-up. It is therefore possible to suppress a reduction in purification ability of the exhaust gas purification catalyst due to sulfur coating.