Dual flow turbine engine muffler
US5162620A · kind A · utility
41Cited by
12References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1989 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Nov 28, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2220/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An elongate exhaust gas muffler for a turbine engine includes a foraminous central exhaust duct which is circumscribed along its length by a plurality of tuned dissipative and reactive noise attenuation chambers. At an inlet end of the muffler an annular secondary flow inlet is defined about the central exhaust duct and opens to the first sound attenuation chamber. A secondary flow of pressurized bleed air is receivable into the first attentuation treatment in the muffler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.