Method of repairing knife edge seals
US8911205B2 · kind B2 · utility
1Cited by
28References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Nov 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4973
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A knife edge seal assembly includes at least one knife edge and at least one honeycomb ring seal. The at least one knife edge has material removed to a first knife edge radial height and the least one honeycomb ring seal has material removed to a finished radial thickness for sealable engagement with the at least one knife edge. The finished radial thickness of the replacement honeycomb ring seal establishes a first radial gap between an inner annular surface of the replacement honeycomb ring seal and the knife edge before the knife edge seal assembly begins rotating in the gas turbine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.