Fan casing acoustic treatment
US6619913B2 · kind B2 · utility
44Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Feb 15, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/283
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan casing for a gas turbine engine is provided which combines the functions of blade containment and noise suppression. The fan casing has an annular metallic inner shell with a plurality of holes are formed therethrough. An acoustic absorber, such as a cellular resonator, is disposed around the inner shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.