Blade for a gas turbine
US7273347B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2006 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Oct 16, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/202
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine blade (1) has a shroud (3) which is cooled by different cooling mechanisms in various regions (A, B, C) according to the different thermal load. In a first region (A), in a fin (8), bores are provided, by which a convective cooling of the fin and a film cooling of the hot gas side of the fin are implemented. A second region (B) is cooled by impingement cooling by a cooling air stream from a duct in the radially opposite stator housing. A third region (C) has a plurality of bores running parallel which run from a cooling duct of a cooling system for the blade leaf to the radially outer surface of the shroud. A cooling air stream flowing through these bores causes a convective cooling of this region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.