Turbine vane, ring segment, and gas turbine including the same
US11143043B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 6, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jan 26, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/22141
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine vane improves cooling performance by guiding an impingement cooling fluid, introduced through a cooling hole of an inner sidewall provided inside the turbine vane, to flow while in contact with an inner surface of the turbine vane for a relatively long time. The turbine vane includes an outer sidewall configured to form an airfoil comprising a leading edge and a trailing edge; an inner sidewall disposed inside the outer sidewall to form a gap between the inner sidewall and an inner surface of the outer sidewall, the inner sidewall having a plurality of cooling holes communicating with the gap; and a plurality of spiral guides formed on the inner surface of the outer sidewall and disposed at positions facing the respective cooling holes, the plurality of spiral guides configured to guide a cooling fluid having passed through the cooling holes to impinge on the spiral guides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.