Turbine bucket cooling passages and internal core for producing the passages
US6966756B2 · kind B2 · utility
31Cited by
18References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2004 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/187
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine bucket comprising an airfoil portion, a shank portion and a dovetail mounting portion; an internal cooling circuit including inlet passages in the shank portion and the dovetail mounting portion connected to a cooling circuit in the airfoil portion, the inlet passages including a primary inlet passage on one side of a radial centerline of the bucket, and a secondary inlet cavity on an opposite side of the radial centerline; and a purge passage connecting the secondary inlet passage to the primary inlet passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.