High efficiency last stage bucket for steam turbine
US7997873B2 · kind B2 · utility
3Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2009 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine bucket including a bucket airfoil having an airfoil shape is provided. The airfoil shape has a nominal profile according to the tables set forth in the specification. The X and Y coordinate are smoothly joined by an arc of radius R defining airfoil profile sections at each distance Z. The profile sections at the Z distances are joined smoothly with one another to form a complete airfoil shape. The airfoil profile results in improved efficiency and airfoil loading capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.