Gas turbine noise suppressor
US4284170A · kind A · utility
22Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02K1/46
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Noise generated in a coannular airstream where there are concentric spaced pipes discharging the flow and the outer pipe extends beyond the inner pipe as in the tail pipe configuration of a fan-jet engine is dissipated by discreetly locating tabs extending internally at the discharge end of the inner pipe. This serves to destroy the coherence of the unsteady pressure field occasioned when the coannular flow streams comingle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.