Controlled gap seal with surface discontinuities
US11041398B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2018 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Feb 12, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/445
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
There is disclosed a controlled gap seal for a gas turbine engine. The seal has a ring annularly and continuously extending about a central axis. A runner that is configured for rotation about the central axis and rotatable relative to the ring. The runner has a face facing a face of the ring. The face of the ring is spaced apart from the face of the runner by a gap. Surface discontinuities are circumferentially distributed around the central axis. The surface discontinuities are located at specific locations and distributed in specific ways. A method of using the controlled gap seal is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.