Cooling air system for mid turbine frame
US8371127B2 · kind B2 · utility
74Cited by
39References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Sep 8, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02C7/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A mid turbine frame is disposed between high and low pressure turbine assemblies. A cooling air system defined in the mid turbine frame of a gas turbine engine includes internal cavities for containing pressurized cooling air to cool the inter-turbine duct and the hollow struts, and discharges the used cooling air to further cool respective high and low pressure turbine assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.