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. 18, 2013
Filed:
May. 12, 2010
Yoshihisa Tsukamoto, Susono, JP;
Hiromasa Nishioka, Susono, JP;
Katsuhiko Oshikawa, Tokyo, JP;
Hiroshi Otsuki, Susono, JP;
Junichi Matsuo, Susono, JP;
Yoshihisa Tsukamoto, Susono, JP;
Hiromasa Nishioka, Susono, JP;
Katsuhiko Oshikawa, Tokyo, JP;
Hiroshi Otsuki, Susono, JP;
Junichi Matsuo, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In an exhaust purification system of an internal combustion engine of the present invention, a silver-alumina-based catalyst device and NOreducing catalyst device are arranged in the engine exhaust system. When a temperature of the silver-alumina-based catalyst device becomes a first set temperature T1 on the high temperature side, NOreleased from the silver-alumina-based catalyst device is reduced by reducing material to be purified in the NOreducing catalyst device. When the temperature of the silver-alumina-based catalyst device becomes a second set temperature on the low temperature side, NOreleased from the silver-alumina-based catalyst device is reduced by reducing material to be purified in the NOreducing catalyst device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile