Muffler assembly
US4359135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2490/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A muffler comprising a housing (12) having end caps (16, 18) and partitions (32, 38, 42) which divide it into first and second expansion chambers (40, 44), a flow chamber (36), and a resonator chamber (34). An inlet tube (20) passes through end cap (16) and partitions (38) and (32) to open into chamber (34): it has perforations (58) and (62) which afford communication with chambers (40) and (36) respectively. An outlet tube (24) passes through end cap (18) and partitions (42) and (32) to open into chamber (36): it has perforations (70) which afford communication with chamber (44), and includes anti-whistle beads (72). A conversion-divergent nozzle (80) is located in tube (22) at its end opening into chamber (36). Apertures (190) are provided to afford limited flow of gas through chamber (34) from tube (20) to chamber (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.