Exhaust emission control catalyst for diesel engines
US6426316B2 · kind B2 · utility
8Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1999 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Feb 12, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust purification catalyst for a compression ignition engine comprises a carrier substrate and a metal-carrying layer which carries catalytic metal formed on the surface of the carrier substrate, and is characterized in that a diffusion restriction layer having a thickness smaller than 170 &mgr;m is provided on the surface of the metal-carrying layer opposite to the
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.