Turbine tip seal damage protection means
US5439347A · kind A · utility
8Cited by
3References
5Claims
0Family size
Inventor
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D25/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a steam or gas turbine employing tip seals which are disposed between a stationary shell or spill strip holder and a rotating bucket cover or shroud to minimize steam leakage, the improvement for limiting particle damage to the tip seals and adjacent components comprising: a scoop plate mounted on the shell or spill strip holder from which the tip seals depend, circumferential openings in the tip seals, and expulsion scoops on the scoop plate adjacent the tip seals for deflecting particulate material through the circumferential openings in the tip seals for minimizing damage thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.