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:
Sep. 16, 2014
Filed:
Feb. 14, 2011
Yoshihisa Tsukamoto, Susono, JP;
Hiromasa Nishioka, Susono, JP;
Katsuhiko Oshikawa, Tokyo, JP;
Hiroshi Otsuki, Susono, JP;
Junichi Matsuo, Susono, JP;
Shigeki Nakayama, Gotenba, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiromasa Nishioka, Susono, JP;
Katsuhiko Oshikawa, Tokyo, JP;
Hiroshi Otsuki, Susono, JP;
Junichi Matsuo, Susono, JP;
Shigeki Nakayama, Gotenba, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
An exhaust purification system of an internal combustion engine of the present invention comprises a silver-alumina-based catalyst device arranged in the engine exhaust system. When a temperature of the silver-alumina-based catalyst device becomes a second set temperature Tlower than a first set temperature Tat which the silver-alumina-based catalyst device releases NO, and releases NO, the silver-alumina-based catalyst device is heated such that a temperature elevation rate thereof is increased to make the temperature T of the silver-alumina-based catalyst device be a third set temperature Tbetween the first set temperature Tand the second set temperature T