Repaired turbine rotor wheel dovetail and related method
US9546551B2 · kind B2 · utility
1Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2013 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Jul 26, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49318
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of repairing a damaged dovetail on a peripheral portion of a turbine wheel includes the steps of removing buckets from the dovetail; removing a damaged dovetail from the peripheral portion of the turbine wheel, leaving a rotor wheel body having a peripheral rim; disposing a replacement ring about the peripheral rim, the replacement ring and the rim defining therebetween a pair of end grooves and a center section; and welding the replacement ring to the peripheral rim, with weld material applied only within the end grooves, leaving a void in the center section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.