Porous metal bodies used for attenuating aviation turbine noise
US7963364B2 · kind B2 · utility
11Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Feb 8, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249921
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A structural element used for attenuating aviation turbine noise is provided with pores (1, 2) embodied in the form of cylindrical channels which are open on the first ends inside the turbine housing and closed on the opposite ends thereof, wherein the diameter (D) of each channel ranges approximately from 0.1 to 0.3 mm, each channel is remote at least along one part of the length thereof from the closest neighbors at a minimum distance ranging approximately from 0.02 to 0.3 mm and the ratio between the channel length and diameter thereof is of the order of 102.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.