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:
Apr. 12, 2005
Filed:
Aug. 24, 2000
Kenro Mitsuda, Tokyo, JP;
Minoru Satou, Tokyo, JP;
Hiroaki Sigeoka, Tokyo, JP;
Ryoji Nishiyama, Tokyo, JP;
Yuji Kishimoto, Tokyo, JP;
Hideaki Katashiba, Tokyo, JP;
Hirofumi Oouchi, Tokyo, JP;
Kenro Mitsuda, Tokyo, JP;
Minoru Satou, Tokyo, JP;
Hiroaki Sigeoka, Tokyo, JP;
Ryoji Nishiyama, Tokyo, JP;
Yuji Kishimoto, Tokyo, JP;
Hideaki Katashiba, Tokyo, JP;
Hirofumi Oouchi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A catalyst for internal combustion engine exhaust purification without frequently switching to a rich burn mode. The catalyst includes a catalyst A containing an NOabsorbing substance and an NOreducing catalyst, a catalyst B containing a hydrogen adsorption substance and a hydrogen oxidizing catalyst, an electron conductive substance C, and an ion conductive substance D. Electrons move between the catalyst A and the catalyst B through the electron conductive substance C, ions move through the ion conductive substance D, and an electrochemical reducing reaction and an electrochemical oxidizing reaction respectively occur on the catalyst A and on the catalyst B. Therefore, it is possible to quickly reduce the adsorbed NOusing the adsorbed hydrogen without depending on the atmosphere.