Gas turbine stationary blade and gas turbine
US12331653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2021 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Oct 15, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/202
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine stationary blade is a turbine stationary blade that includes: a blade body; and a shroud formed in an end portion of the blade body in a blade height direction. The shroud includes: a bottom plate in contact with a combustion gas flow passage; a peripheral wall formed in the blade height direction and along a peripheral edge of the bottom plate; a recess forming a space surrounded by the peripheral wall and the bottom plate; a plurality of partition ribs connecting the blade body and the peripheral wall, dividing the recess into a plurality of spaces, and forming a plurality of cavities; and an impingement plate dividing the space into an outer cavity formed on an outer side in the blade height direction and an inner cavity formed on an inner side of the outer cavity, and having a plurality of through holes via which the outer cavity and the inner cavity communicate with each other. The peripheral wall includes: a leading edge end portion extending to a leading edge side of the blade body; a suction side end portion extending from a leading edge to a trailing edge on a suction side of the blade body, and internally including a suction side passage; a pressure side end por…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.