Method of modifying the coupling geometry in shroud band segments of turbine moving blades
US7644498B2 · kind B2 · utility
1Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Sep 8, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of modifying a coupling geometry in a shroud band segment of a turbine moving blade includes the following steps: calculation of a modified coupling geometry; removal of shroud band material situated outside the modified coupling geometry; and/or application of additional material not present inside the modified coupling geometry; reworking the removal and/or application zones. The method avoids disadvantages of the prior art and provides improved wear behavior in the coupling region so as to prolong the life of the turbine blades in an effective and inexpensive manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.