US 9,957,825 B2 · Non-linearly deflecting brush seal land

Abstract

A brush seal land is disclosed. The brush seal land may comprise a first portion configured to be coupled to a turbine disc of an aircraft engine and a second portion having a contact surface. The brush seal land may comprise a concave annular structure. The second portion may deflect through a clearance area in response to contact with a brush. The second portion may not deflect in response to contact with a brush after the second portion has deflected through a clearance area in response to contact with the brush. The contact surface comprises tungsten carbide. The brush seal land may comprise INCONEL. The brush seal land may be configured to be coupled to an annular member extending from the turbine disc. The brush seal land may reduce abrasion to an annular member extending from the turbine disc by a brush.

Claims14

Dependent claims

A generally C-shaped brush seal land comprising:

a concave annular structure configured to rotate with a turbine disc;
a first portion of the concave annular structure configured to couple to an annular member extending from the turbine disc;
and
a second portion of the concave annular structure radially opposing the first portion and configured to deflect towards the first portion to close a clearance area between the second portion and the turbine disc in response to contact with a brush seal,
wherein the second portion deflects through the clearance area in response to contact with the brush seal up to the point at which the second portion contacts the turbine disc, and does not deflect further due to contact between the second portion and the turbine disc.

2 more elements

Dependencies are inferred from the claim text.

Non-linearly deflecting brush seal land

Life of this patent

Non-linearly deflecting brush seal land

Life of this patent

Abstract

Claims14