发明公开
- 专利标题： Exhaust gas catalytic conversion system
- 专利标题（中）： 一种用于废气催化转换系统
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申请号： EP07115256.5申请日： 2007-08-30
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公开(公告)号： EP1900416A3公开(公告)日： 2009-04-01
- 发明人: Miyoshi, Seiji , Iwakuni, Hideharu , Minoshima, Koji , Yamada, Hiroshi , Akamine, Masaaki , Takami, Akihide
- 申请人： Mazda Motor Corporation
- 申请人地址： 3-1, Shinchi Fuchu-cho Aki-gun Hiroshima, Hiroshima 730-8670 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： 3-1, Shinchi Fuchu-cho Aki-gun Hiroshima, Hiroshima 730-8670 JP
- 代理机构： Zinnecker, Armin
- 优先权： JP2006241397 20060906
- 主分类号： B01D53/94
- IPC分类号： B01D53/94 ; F01N3/28 ; B01J23/10 ; B01J23/38 ; B01J23/46 ; B01J23/54 ; B01J23/63
摘要：
An upstream catalyst (3) and a downstream catalyst (4) are disposed in an exhaust passage (2) of an engine (1). The downstream catalyst (4) 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 (3) 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
- EP1900416B1 Exhaust gas catalytic conversion system 公开/授权日：2011-04-27
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