Turbine bucket with a cooling circuit having an asymmetric root turn
US11187085B2 · kind B2 · utility
1Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Dec 19, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/73
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine bucket may include a platform, an airfoil extending from the platform at an intersection thereof, and a cooling circuit extending within the platform and the airfoil. The cooling circuit may include a root turn with an asymmetric shape to reduce stress concentrations therein. The asymmetric shape of the root turn may be asymmetrical along a path between a pressure side of the airfoil and a suction side of the airfoil. The asymmetric shape of the root turn may be asymmetrical within a plane defined by a radial direction and a circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.