Method for exhaust gas treatment
US4451441A · kind A · utility
31Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1983 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Sep 9, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Suspended particles in exhaust gases, such as carbon and lead particles in internal combustion engine exhaust gases, are removed by passing the gases through a coarse filter and then through a fine filter. The filters may comprise a ceramic foam material and a catalyst material effective for the conversion of the carbon particles and/or gaseous pollutants in the exhaust gases to innocuous entities may be deposited on the filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.