US 5,704,760 A · Method and apparatus for improving the airsealing effectiveness in a turbine engine

Abstract

A gas turbine engine having coannular components 22, 30 includes means for receiving and retaining a replaceable brush seal 60 so that the seal bristles impede the leakage of air through an intercomponent gap 41. In the preferred embodiment one of the components is a hollow, cylindrical barrel 30 comprising upper and lower barrel segments and the receiving and retaining means includes a retainer 52. The retainer cooperates with the barrel to define a groove 56 within which the brush seal is trapped radially and axially. The brush seal slides circumferentially within the groove to facilitate seal installation and removal.

Claims3

Dependent claims

A gas turbine engine component, characterized by:

a hollow substantially cylindrical barrel comprising upper and lower barrel segments separably secured together and having means for radially retaining and axially trapping a brush seal;
a brush seal comprising at least two brush seal segments, the brush seal segments being radially retained and axially trapped by the retaining and trapping means;
wherein the brush seal segments are slidably installable and removable upon separation of the upper barrel segment from the lower barrel segment.

Dependencies are inferred from the claim text.

Facts

Application

08/770,312Filed 20 Dec 1996 · division

Priority

26 Mar 1996

Granted

6 Jan 1998

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

F01D 11/02
Preventing or minimising internal leakage of working-fluid, e.g. between stages: by non-contact sealings, e.g. of labyrinth type
F01D 11/001
Preventing or minimising internal leakage of working-fluid, e.g. between stages: for sealing space between stator blade and rotor
F01D 11/12
For sealing space between rotor blade tips and stator: using a rubstrip, e.g. erodible. deformable or resiliently-biased part
F16J 15/3288
Characterised by their structure; Selection of materials: filamentary structures, e.g. brush seals

Method and apparatus for improving the airsealing effectiveness in a turbine engine

Life of this patent

Method and apparatus for improving the airsealing effectiveness in a turbine engine

Life of this patent

Abstract

Claims3