Hollow rotor blade for the future of a gas turbine engine
US7192250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Aug 3, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/202
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hollow blade includes an internal cooling passage, an open cavity located at the tip of the blade and bounded by an end wall and a rim and cooling channels that connect the said internal cooling passage to the outer face of the pressure wall. The cooling channels are inclined to the pressure wall in such a way that they emerge on the outer face of the pressure wall near the top of the said rim. A reinforcement of material is present between the rim and the end wall of the cavity along at least one portion of the pressure wall , whereby the said rim is widened at its base adjacent to the said end wall in such a way that the cooling channels emerge near the top of the rim without reducing the mechanical strength of the tip of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.