Labyrinth seal and gas turbine
US12215789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2021 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Mar 10, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/447
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A labyrinth seal according to one aspect of the present disclosure includes: a first structure including seal fins located at intervals in an axial direction; and a second structure opposed to the first structure, a radial gap being between each seal fin and the second structure. The second structure is such that when each seal fin is regarded as a reference, a portion of the second structure which is located downstream of the seal fin does not overlap the seal fin in the axial direction. The second structure includes an inlet wall located upstream of a most upstream one of the seal fins, a radial gap being between the inlet wall and the first structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.