Turbine stator vane, turbine stator vane assembly, and steam turbine
US11773753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2020 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Dec 11, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/51
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This turbine stator vane extends in the radial direction which intersects the flow direction of steam, and includes a pressure surface facing the upstream side in the flow direction, and a suction surface facing the downstream side in the flow direction. A plurality of grooves are formed in at least the pressure surface, the grooves extending outward in the radial direction toward the downstream side. At the periphery of the grooves in the pressure surface, formed is a hydrophilic uneven region having greater hydrophilic properties than the pressure surface. The downstream-side ends of the plurality of grooves are connected to slits for capturing a liquified component of the steam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.