Sealing device between blade stages and a rotary drum, particularly for preventing leaks around the stages of straightener blades
US5328328A · kind A · utility
13Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1993 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | May 21, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device for ensuring the sealing in a rotary machine between a rotor and fixed blade stages. Blade edges are joined by rings carrying circular seals in slots. Springs force the seals in the longitudinal direction towards transverse faces of reinforcements of the rotor. A turbulence-free gas flow is obtained as a result of the total seal obtained by the seals (19). Moreover, the rotor can be constructed with a substantially rectilinear ferrule which only induces limited stress concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.