Gas treatment systems
US5771684A · kind A · utility
9Cited by
23References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2273
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Flow diverter methods and apparatus useful, for example, in adsorber systems capable of meeting the California ultra-low emission vehicle (ULEV) standard, are described, the adsorber systems incorporating a combination of a burn-off catalyst and a modified adsorber constructed with an open flow region of substantially unobstructed flow having a hole or a region of larger cell openings, the flow diverter acting to control exhaust flow through the adsorber to both increase adsorption and reduce the light-off time of the burn-off catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.