Phased treatment noise suppressor for acoustic duct applications
US4091892A · kind A · utility
64Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Feb 17, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A phased treatment noise suppression panel is provided for use in an exhaust duct. The panel consists of individual sections designed with specific modal attenuation characteristics and located axially within the duct in such a sequential order, with respect to the noise source, as to take maximum advantage of modal redistribution effects on overall noise suppression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.