Exhaust gas purifier for internal combustion engine
US3966443A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 15, 1974 |
| Grant date | Jun 29, 1976 |
| Priority date | — |
| Expiry date | Apr 15, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2570/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purifier for internal combustion engine, has a porous filter impregnated with a desired adsorbent or a porous filter made of bulk metal catalyst. Instead of extending perpendicular to the main axial direction of the exhaust pipe, the filter extends axially and is mounted on a metal screen cylinder having a baffle which diverts the flow of exhaust gas toward and through the cylinder and filter. In this manner, the exhaust gas flows axially into the screen cylinder and then passes radially through the filter to a second flow passage which is connected to the purifier outlet. Very low back pressure is obtained with this arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.