Process for igniting a regenerative soot filter in the exhaust gas connection of diesel engines
US4741156A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Oct 24, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the ignition of a regenerative soot filter adapted to be ignited in which the temperature, respectively, heat quantity necessary for the ignition of the filter is produced by charging a storage container located ahead of the soot filter or in connection with the soot filter which contains a hydride-forming alloy or a hydride-forming material. The necessary hydrogen is taken from a second storage container with a different alloy storing hydrogen, which is brought to a temperature by the exhaust gases so that a sufficient hydrogen pressure results therefrom. After the ignition, the second storage container is cooled off and the hydrogen is again conducted from the first storage container heated by the exhaust gases back into the second storage container so that the ignition operation can be repeated with renewed heating of the second storage container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.