Turbine blade with chamfered squealer tip and convective cooling holes
US8684691B2 · kind B2 · utility
17Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A squealer tip formed from a pressure side rib and a suction side rib extending radially outward from a tip of the turbine blade is disclosed. The pressure and suction side ribs may be positioned along the pressure side and the suction side of the turbine blade, respectively. The pressure and suction side ribs may include chamfered leading edges with film cooling holes having exhaust outlets positioned therein. The film cooling holes may be configured to be diffusion cooling holes with one or more tapered sections for reducing the velocity of cooling fluids and increasing the size of the convective surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.