Sealing ring for a turbine rotor of a turbo machine and turbo machine installations provided with such rings
US4596116A · kind A · utility
68Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1984 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Feb 1, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The rotor of each stage of a turbine is surrounded, with a clearance by a fixed ring, formed by a metal ring supporting internally an annular thermal screen, in the form of ceramic segments. Expansions and contractions of the metal ring under the action of air which is supplied thereto in order to control the said clearance are transformed into displacements of radial faces of the ring in contact with radial flanges rigid with the turbine casing and seals serve to ensure fluidtightness of the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.