Muffler apparatus with filter trap and method of use
US4851015A · kind A · utility
94Cited by
38References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1987 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Aug 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49934
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Muffler apparatus for reducing both sound and particulates from exhaust gases from an engine. The apparatus includes resonating chambers, flow distribution structure and a cellular ceramic core filter module. Filter regeneration mechanism includes a heating element for heating the carbon on the inlet end of the ceramic core to combustion temperature. Particulate ignition resulting in regeneration occurs when combustion air is provided; in alternate embodiments, combustion air first flows through a preheater system. A processor unit with particular logic controls the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.