Hollow rotor blade for the turbine of a gas turbine engine
US7927072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2007 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Sep 6, 2030 |
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 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 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 rim is widened at its base adjacent to the 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.