发明授权
- 专利标题： Exhaust gas catalytic conversion system
- 专利标题（中）： 废气催化转化系统
-
申请号： US11826558申请日： 2007-07-17
-
公开(公告)号： US07785545B2公开(公告)日： 2010-08-31
- 发明人: Seiji Miyoshi , Hideharu Iwakuni , Koji Minoshima , Hiroshi Yamada , Masaaki Akamine , Akihide Takami
- 申请人： Seiji Miyoshi , Hideharu Iwakuni , Koji Minoshima , Hiroshi Yamada , Masaaki Akamine , Akihide Takami
- 申请人地址： JP
- 专利权人： Mazda Motor Corporation
- 当前专利权人： Mazda Motor Corporation
- 当前专利权人地址： JP
- 代理机构： Studebaker & Brackett PC
- 代理商 Donald R. Studebaker
- 优先权： JP2006-241397 20060906
- 主分类号： B01D50/00
- IPC分类号： B01D50/00
摘要：
An upstream catalyst and a downstream catalyst are disposed in an exhaust passage of an engine. The downstream catalyst contains in the same catalyst layer thereof. Rh-doped CeZrNd mixed oxide particles on which Rh is supported and active alumina particles on which Pt is supported. The upstream catalyst is a three-way catalyst containing an oxygen storage component having a lower oxygen storage capacity than the Rh-doped CeZrNd mixed oxide.
公开/授权文献
- US20080056965A1 Exhaust gas catalytic conversion system 公开/授权日：2008-03-06