Catalyst system for the purification of exhaust gas
US5811364A · kind A · utility
5Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1995 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Jul 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst system for the purification of exhaust gas comprises at least two catalysts disposed on an exhaust system side of an engine and at least containing palladium as a catalyst component. In this case, each of catalysts disposed on upstream side and downstream side contains a given amount of an alkaline earth metal compound as an oxide conversion per 1 L of a carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.