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. 17, 2006
Filed:
Oct. 12, 2001
Isamu Hotta, Kanagawa-ken, JP;
Toshikazu Shiino, Kanagawa-ken, JP;
Akira Tayama, Kanagawa-ken, JP;
Hirofumi Tsuchida, Kanagawa-ken, JP;
Isamu Hotta, Kanagawa-ken, JP;
Toshikazu Shiino, Kanagawa-ken, JP;
Akira Tayama, Kanagawa-ken, JP;
Hirofumi Tsuchida, Kanagawa-ken, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In an exhaust path, a HC trapping material which traps HC contained in exhaust gas temporarily, a HO trap which traps HO contained in exhaust gas and a CO oxidation catalyst are arranged in this order from the upstream side, wherein the HO trap is disposed just upstream of and close to the CO oxidation catalyst. HO and HC which are components disturbing the activity of the CO oxidation catalyst can be removed efficiently and the adsorption heat and condensation heat of HO can be efficiently utilized to raise the temperature of the CO oxidation catalyst so that early activation of the CO oxidation catalyst is accomplished just after an engine starts.