Gas turbine engine noise shield
US3964569A · kind A · utility
4Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1974 |
| Grant date | Jun 22, 1976 |
| Priority date | — |
| Expiry date | Sep 6, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2033/0286
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Positionable deflector means are provided in a gas turbine engine inlet duct. The deflector means are actuated to change the axial and circumferential location of a forward protruding extension of the inlet duct in order to selectively reduce noise propagation. A method is disclosed for directional noise shielding as a gas turbine engine experiences altitude and operational changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.