发明申请
- 专利标题： ENGINE EXHAUST PURIFICATION DEVICE
- 专利标题（中）： 发动机排气净化装置
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申请号： US13444240申请日： 2012-04-11
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公开(公告)号： US20120222411A1公开(公告)日： 2012-09-06
- 发明人: Masakazu YANO , Nobuhiko Masaki , Kiminobu Hirata
- 申请人： Masakazu YANO , Nobuhiko Masaki , Kiminobu Hirata
- 专利权人： UD TRUCKS CORPORATION
- 当前专利权人： UD TRUCKS CORPORATION
- 主分类号： F01N3/035
- IPC分类号： F01N3/035
摘要：
In an exhaust filter, a urea hydrolysis catalyst is supported on a first portion of an inner wall of a cell passage on the inlet side, and a first NOx reducing catalyst is supported on a second portion of the inner wall of the inlet-side passage downstream of the first portion. A second NOx reducing catalyst is supported on a third portion of an inner wall of a cell passage on the outlet side where the third portion overlaps with the first portion in a direction of intersection with the exhaust flow into the exhaust filter or is downstream of the first portion. An oxidation catalyst is supported on a fourth portion of the inner wall of the outlet-side passage downstream of the third portion where the fourth portion overlaps with the second portion in the direction of intersection or is downstream of the second portion.
公开/授权文献
- US08713922B2 Engine exhaust purification device 公开/授权日：2014-05-06
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