Inter-stage seal retainer and assembly
US6220815A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Dec 17, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B5/0241
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A retainer which, in an exemplary embodiment of the invention, is used in a gas turbine engine inter-stage seal assembly to retain an annular seal ring flange of a seal ring against an annular platform flange extending radially inwardly from an inner platform of an annular nozzle stage having nozzle vanes. The retainer includes a body having a central portion through which a bore is formed around a bore axis and a central tab extends radially outwardly from the central portion with respect to the bore axis. First and second arms, respectively, extend in opposite respective first and second tangential directions, with respect to the bore axis, away from the central portion and each other. Axial spacers extend aftwardly from first and second free ends of the first and second arms, respectively and anti-rotation feet with rounded ends depend from the first and second free ends in an opposite direction from which the central tab extends. A pedestal assembly extends aft from the central portion and is located aft of the central tab. In the exemplary embodiment, the pedestal assembly has a semi-annular cylindrical inner surface circumscribed around the bore axis and a semi-annular cylind…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.