Air cooled turbine airfoil with sequential impingement cooling
US8167537B1 · kind B1 · utility
30Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2011 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Nov 17, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air cooled turbine airfoil such as a stator vane in which the airfoil is hollowed out and an insert is secured within the hollowed out section that produces sequential impingement cooling of the airfoil. The insert is formed from a plurality of plates bonded together outside of or inside of the airfoil to form a single piece insert with the cooling circuit. The plates are bonded together using TLP bonding process with sheets of boron placed between adjacent plates so that no excess material seeps out and into the cooling features formed with the plates. The cooling features of the plates are formed by photo-etching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.