Seal assembly and rotary machine containing such seal assembly
US5971400A · kind A · utility
54Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Aug 10, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/57
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal assembly and a rotary machine, such as a steam turbine, containing the seal assembly. A casing circumferentially surrounds a rotor and includes a circumferential channel open to the rotor. Seal segments are circumferentially arrayed in the channel and are movable between radially inward and outward positions. Circumferentially adjacent seal segments have circumferentially opposing surface grooves. A resilient and imperforate member is engaged in the grooves of circumferentially-adjacent seal segments circumferentially urging apart such segments and providing sealing between such segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.