Turbine nozzle segment and method of repairing same
US6905308B2 · kind B2 · utility
13Cited by
14References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2002 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jan 4, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49323
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is provided for repairing a turbine nozzle segment having at least one vane disposed between outer and inner bands. The method includes separating the inner band from the nozzle segment, and joining the inner band to a newly manufactured replacement casting having an outer band and a vane. The replacement casting includes an airfoil stub. The airfoil stub is received in a recess formed in the inner band. Joining is completed by joining the airfoil stub to the inner band. The replacement casting may be modified from a newly manufactured singlet casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.