Turbine blade and gas turbine
US12281594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2022 |
| Grant date | Apr 22, 2025 |
| Priority date | — |
| Expiry date | Nov 25, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine blade includes a blade body, cooling passages extending in the blade height direction inside the blade body and connected to each other via folded portions, and a bypass portion that is provided in a partition wall portion partitioning a pair of adjacent cooling passages and that allows the pair of cooling passages to communicate with each other. The pair of cooling passages includes an upstream passage and a downstream passage. The turbine blade is provided with: a plurality of cooling holes formed in the blade body so as to be arranged along the blade height direction, that communicate with the downstream passage, and open in the surface of the blade body; a plurality of turbulators provided on the inner wall surface of the downstream passage and arranged along the blade height direction; or a thermal barrier coating that covers the surface of the blade body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.