Muffler apparatus with filter trap and method of use
US4867768A · kind A · utility
33Cited by
60References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Mar 28, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- 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.