Stamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubes
US5252788A · kind A · utility
27Cited by
50References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1992 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Apr 10, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2490/155
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust muffler is provided with first and second internal plates formed to define an array of tubes and a reversing chamber. A pair of external shells are engaged to the internal plates and define one or more chambers surrounding the tubes defined by the internal plates. A pipe extends across the reversing chamber defined by the internal plates and to the outlet. A portion of the pipe may be perforated to enable expansion of exhaust gas into a high frequency tuning chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.