Sealing device
US8100406B2 · kind B2 · utility
5Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2009 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | May 13, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/59
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gap 6 between a stationary component 2 and a rotating component 4 is sealed by means of a leaf seal comprising an array of leaves 8, 9. The leaves 8, 9 are disposed in pairs, comprising a higher curvature leaf 8 and a lower curvature leaf 9 which contact each other resiliently at their tips 12. The contact at the tips 12 provides a damping effect. As a result, the tips 12 of the leaves 8, 9 are relatively stable when subjected to an air flow F, enabling damaging flutter to be suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.