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. 21, 2003
Filed:
Mar. 27, 2002
Satoshi Hiranuma, Tochigi, JP;
Kihoko Kaita, Saitama, JP;
Shinichi Saito, Tochigi, JP;
Takeshi Hashizume, Tochigi, JP;
Junya Watanabe, Tochigi, JP;
Kenji Kawai, Tochigi, JP;
Toru Kawatani, Tochigi, JP;
Yoshinaka Takeda, Kanagawa, JP;
Mitsubishi Fuso Truck and Bus Corporation, Tokyo, JP;
Abstract
An exhaust emission control system of an internal combustion engine is provided which controls the oxygen concentration of exhaust passing through the exhaust emission control device according to the flow rate of exhaust flowing through an exhaust passage when the exhaust emission control device is regenerated, so that the regeneration is completed within a short period of time while the filter is prevented from being damaged by melting during the regeneration. This improves the exhaust emission control performance and reliability of the filter.