Burn-out type cleaning means for particulate filter of engine exhaust system
US4359864A · kind A · utility
17Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Feb 5, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Apparatus for raising the temperature of internal combustion engine exhaust gases high enough to burn collected particulate material from particulate filter means (27/56) in the exhaust system. An electrical resistance heating element (37/71) which confronts only a small part of the inlet surface of particulate filter means (27/56) is moved relative to said inlet surface so as to progressively and cyclically burn the particulates from the filter means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.