Sealing of steam turbine bucket hook leakages using a braided rope seal
US6832892B2 · kind B2 · utility
8Cited by
27References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Apr 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49323
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A steam turbine includes a rotor supporting a plurality of turbine buckets. The rotor has shaped grooves for receiving a complementary-shaped bucket hook formed on an end of each of the turbine buckets. A rope seal is disposed in each interface between the bucket hooks and the shaped grooves, respectively. The rope seal serves to seal a leakage path that may exist over the bucket hooks between the buckets and respective rotor grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.