Lamellar seal for a turbomachine
US8517673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2010 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Apr 10, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/59
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A lamellar seal for sealing a shaft which rotates around an axis, especially in a gas turbine, includes a multiplicity of lamella (13) which are spaced one beneath the other, arranged in a concentric circle around the axis, and fixed in their position, wherein the lamellae (13) by their surfaces are oriented essentially parallel to the axis. The lamellar seal is improved by the fact that the lamellae (13) have formed-on structures (19, 20, 21) in each case for positioning and retaining the lamellae (13) in the lamellar seal (12), which include one or more laterally projecting support arms (19, 20, 21) which engage in complementarily formed recesses (25, 26) of the end plates (15, 16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.