Skirted leaf seal apparatus
US11719191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Jun 21, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/52
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In some embodiments, apparatuses are provided herein useful to sealing a gap between a movable flap and a stationary structure, such as a gap between a gas turbine engine nozzle flap and a corresponding sidewall. An apparatus for sealing such a gap may be a dynamic skirted leaf seal which may include a flap arm and a wall arm opposite the flap arm. A distal end portion of the flap arm may comprise a first skirt and the distal end portion of the wall arm may comprise a second skirt that engages the first skirt. When positioned in a gap between the movable flap and the stationary structure, the skirted leaf seal may exert a force to urge the flap arm towards the flap and to urge the wall arm towards the structure to seal the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.