Spark arresting structure for a muffler having a catalytic converter
US5866859A · kind A · utility
21Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Aug 11, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Muffler with catalytic converter (1) essentially arranged in direct connection with a combustion engine's exhaust port and mainly intended for portable working tools such as chain saws. A spark arrester screen (3), i.e. a structure (3) which at least partly contains a wire mesh (4) and a net (4), usually made of metallic material, is located in the exhaust gas flow downstream a converter element (5). In connection with the spark arrester screen (3), upstream or downstream the screen, flow dividers (8, 13, 9) are arranged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.