US 2020/0400032 A1 · BOAS THERMAL BAFFLE

Abstract

A blade outer air seal assembly includes a support structure. A blade outer air seal has a plurality of segments that extend circumferentially about an axis and mounted in the support structure. At least two of the segments have a first wall circumferentially spaced from a second wall. A base portion extends from the first wall to the second wall. A recess is arranged in at least one of the first wall and the second wall. An intersegment seal is arranged between the at least two segments. The intersegment seal has a circumferentially extending portion and a radially extending tab. The radially extending tab extends into the recess to define at least two cavities within the recess.

Claims20

Dependent claims

A blade outer air seal assembly, comprising:

a support structure;
a blade outer air seal having a plurality of segments extending circumferentially about an axis and mounted in the support structure, at least two of the segments having a first wall circumferentially spaced from a second wall, a base portion extending from the first wall to the second wall, and a recess arranged in at least one of the first wall and the second wall;
and
an intersegment seal arranged between the at least two segments, the intersegment seal having a circumferentially extending portion and a radially extending tab, the radially extending tab extending into the recess to define at least two cavities within the recess.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/893,595Filed 5 Jun 2020

Priority

19 Jun 2019

Published

24 Dec 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

F01D 11/001
Preventing or minimising internal leakage of working-fluid, e.g. between stages: for sealing space between stator blade and rotor
F01D 11/08
Preventing or minimising internal leakage of working-fluid, e.g. between stages: for sealing space between rotor blade tips and stator
F01D 11/005
Preventing or minimising internal leakage of working-fluid, e.g. between stages: sealing means between non relatively rotating elements
F01D 11/16
Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing: by self-adjusting means

Boas thermal baffle

Life of this patent

Boas thermal baffle

Life of this patent

Abstract

Claims20