Catalytic converter for a tailpipe including apparatus for relieving back pressure
US5849251A · kind A · utility
Inventor
Key dates
| Filing date | Feb 3, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Feb 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalytic converter for a tailpipe which further reduces vehicle exhaust emissions from exhaust emission systems and that will meet the more stringent emission requirements of state and federal government regulations. The tailpipe catalytic converter includes a ceramic or steel housing which includes a matrix core of catalytic layered materials which react with the exhaust emission pollutants, such as NO.sub.x, NMHC, HC, and CO. These pollutants are further reduced and oxidized by the catalytic converter in the tailpipe by the typical catalytic materials of platinum, palladium, rhodium, or the like contained within the honeycombed or meshed layers of the matrix core. The catalytic converter is lodged within the interior of the tailpipe adjacent the open end or as an extension to the end of the tailpipe. The tailpipe catalytic converter is held in place by any suitable device, such as a clamp, mounting screws, or mounting brackets. The tailpipe catalytic converter includes a device for relieving back pressure, and may be used for other vehicles, such as trucks and motorcycles or other gas compression engines, i.e., lawn mowers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.