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:
Jul. 04, 2006
Filed:
Jan. 19, 2001
Masashi Shinohara, Wako, JP;
Haruhiko Komatsu, Wako, JP;
Seiji Nishimoto, Wako, JP;
Tsutomu Takahashi, Wako, JP;
Hideharu Izumi, Wako, JP;
Masashi Shinohara, Wako, JP;
Haruhiko Komatsu, Wako, JP;
Seiji Nishimoto, Wako, JP;
Tsutomu Takahashi, Wako, JP;
Hideharu Izumi, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
Heat transfer members (H, H, H, H) are sequentially disposed within an exhaust port (), within a pre-catalytic device (), and on the downstream of a main catalytic device (); the exhaust port (), the pre-catalytic device (), and the main catalytic device () being provided in an exhaust passage () of an internal combustion engine. The heat transfer surface density (heat transfer area/volume) of the heat transfer members (H) on the upstream side of the exhaust passage () is the lowest, and that of the heat transfer members (H) on the downstream side is the highest. Thus, even though the temperature of the exhaust gas is higher on the upstream side of the exhaust passage () than it is on the downstream side of the exhaust passage (), a uniform heat transfer performance across all of the heat exchangers (H, H, H, H) may be maintained.