Turbine flowpath seal
US5797723A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Nov 13, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/0887
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine seal includes a first arcuate segment defining a flowpath boundary between combustion gases and air, and includes a radially outwardly extending rail at one end thereof. A second arcuate segment is disposed coaxially with the first segment for defining a continuation of the flowpath boundary, and has a radially extending face adjoining the rail. A leaf seal bridges the rail and the face for sealing leakage therebetween, and a plurality of pins extend through the leaf seal for providing mounting to the rail. Each pin includes a head and an opposite tip, with the pins being fixedly joined to the rail solely about the pin tips for freely supporting the pin heads in a cantilever without obstruction therearound for eliminating supporting tabs. A leaf spring is mounted on the pins between the heads and the leaf seal to pre-load the leaf seal against the rail and face to effect the sealing therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.