Sealing structure on a shroud of a turbine blade
US9441489B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2011 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device on a shroud which is provided on a turbine rotor blade tip has a cutting structure designed like a line of ribs, locally projecting over the shroud radially to the rotational axis around which the turbine rotor blade is rotatably arranged. The sealing structure has a longitudinal extent (S) oriented in the direction of rotation (U) of the turbine rotor blade, tapers with increasing radial distance from the shroud, and terminates with a flat end face (St) which radially faces away from the turbine rotor blade, and can be divided into five interrelated surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.