Cooling circuit flow path for a turbine section airfoil
US8757974B2 · kind B2 · utility
18Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2007 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Nov 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooled airfoil includes an impingement rib having a multiple of openings which supply a cooling airflow from a cooling circuit flow path toward an airfoil leading edge. The multiple of openings are offset in the impingement rib opposite an outer airfoil wall which includes gill holes. Offsetting the multiple of openings opposite an outer airfoil wall which includes the gill holes focuses the cooling airflow across turbulators to increase the cooling airflow dwell time to increase the thermal transfer therefrom in higher temperature airfoil areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.