- 专利标题: Exhaust gas purifying catalyst
-
申请号: US10349193申请日: 2003-01-23
-
公开(公告)号: US07112550B2公开(公告)日: 2006-09-26
- 发明人: Yoshiaki Hiramoto , Masahiro Takaya , Shinji Yamamoto
- 申请人: Yoshiaki Hiramoto , Masahiro Takaya , Shinji Yamamoto
- 申请人地址: JP Yokohama
- 专利权人: Nissan Motor Co., Ltd.
- 当前专利权人: Nissan Motor Co., Ltd.
- 当前专利权人地址: JP Yokohama
- 代理机构: Foley & Lardner LLP
- 优先权: JP2002-015010 20020124; JP2002-033550 20020212; JP2002-375121 20021225
- 主分类号: B01J29/06
- IPC分类号: B01J29/06
摘要:
An exhaust gas purifying catalyst includes a honeycomb substrate, and HC adsorbent layers containing zeolite and having a thickness ranging from 100 μm to 500 μm. Each of the HC adsorbent layers has an approximately circular surface on a cross section perpendicular to a direction where each of the cells of the honeycomb substrate is extended, and has circumferential-direction cracks extended in a circumferential direction and radial-direction cracks extended in a radial direction. The circumferential-direction cracks and the radical-direction cracks are unconnected to each other or are connected in an extent not to cause layer exfoliation in the HC adsorbent layers. A manufacturing method of the exhaust gas purifying catalyst is to coat slurry containing zeolite on the honeycomb substrate plural times, to dry or fire the coated slurry, and to form the HC adsorbent layers.
公开/授权文献
- US20030181316A1 Exhaust gas purifying catalyst 公开/授权日:2003-09-25
信息查询