Exhaust gas cleaning apparatus
US5346675A · kind A · utility
70Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1989 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Dec 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49345
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust gas cleaning apparatus comprises one or more honeycomb core bodies for carrying an exhaust gas cleaning catalyst and fitted in a tubular metal casing. The metal casing has an outer wall which is axially expandable and contractible so as to follow the stress due to thermal strains acting on the honeycomb core bodies inside, thereby remarkably improving the apparatus in durability and vibration resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.