Turbine blade pocket shroud
US6491498B1 · kind B1 · utility
44Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/2322
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved gas turbine blade is disclosed that utilizes a blade tip shroud with tapered shroud pockets to remove excess weight from the shroud while not compromising shroud bending stresses. Excess shroud weight removed by the tapered pockets reduces overall blade pull while maintaining material necessary to increase shroud stiffness. The resulting rib created between the tapered pockets provides a surface, away from possible areas of stress concentration, for drilling radial cooling holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.