Apparatus comprising the combination of filter apparatus and regeneration apparatus and process for regenerating the filter apparatus using the regeneration apparatus
US4576617A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1984 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Jun 7, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Apparatus and process for regeneration of clogged solid particle filters, particularly for diesel engines. There is periodically injected upstream from the clogged filter an organic liquid such as C.sub.x H.sub.y O.sub.z, of the ethyl or methyl alcohol type, having a low vaporization temperature, if necessary with water added. The organic liquid, after having been preheated and cracked to give rise to a very flammable mixture consisting essentially of hydrogen and carbon monoxide, is introduced in the path of the incident exhaust gases. The regeneration apparatus comprises two prechambers, each of which contains a glow plug. The burning of the flammable mixture regenerates the clogged filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.