Flanged ladder seal
US4875830A · kind A · utility
22Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1985 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Jul 18, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a compressor rotor assembly of an axial flow gas turbine engine, wherein the rotor disk has a circumferential blade retaining slot for receiving the root of each blade of a row of blades, a ladder seal is provided between the slot and the blade platforms to limit the leakage of working medium gases from the flow path and through the slot. During engine operation, the seal moves radially outwardly into sealing relation with the underside surface of each platform. At the same time, radially inwardly extending flanges of the seal move radially outwardly into sealing relation with the sidewalls of the disk slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.