One-piece engine inlet acoustic barrel
US5768778A · kind A · utility
17Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Aug 14, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49885
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An acoustic liner jet engine inlet barrel is formed from a perforated permeable skin, a honeycomb core, and a solid facesheet, each of which is formed in a one-piece configuration such that at most only a narrow single fore-to-aft splice, or no spice at all, is present in the finished product. The acoustic modal content remains unaffected, thus preserving a high degree of liner effectiveness, increasing the total active acoustic area of the barrel while decreasing its weight, and increasing its durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.