US 12,110,798 B1 · Blade outer air seal with machinable coating

Abstract

A gas turbine engine includes a compressor section, a combustor section and a turbine section for rotation on an axis. The turbine section includes at least one row of rotating turbine blades each having a radially outer tip. A blade outer air seal is positioned radially outwardly of the radially outer tip. The blade outer air seal has a central web positioned radially outwardly of the radially outer tip. The blade outer air seal has an upstream mount arm and a downstream mount arm receiving mount structure from a static structure. The static structure has sealing members engaging an upstream outer surface of the upstream mount arm at an upstream seal material and a downstream outer surface of the downstream mount arm at a downstream seal material. A method is also disclosed.

Claims20

Dependent claims

A blade outer air seal, comprising:

a center web having a first surface and a second surface opposite the first surface, and first and second faces joining the first surface to the second surface;
first and second mounting arms extending from the second surface, the second surface having a center portion between the first and second mounting arms and first and second side portions on either side of the center portion;
and
a continuous abradable coating disposed on the first surface of the center web, at least one of the first and second faces, and at least one of the first and second side portions of the second surface.

1 more element

Dependencies are inferred from the claim text.

Blade outer air seal with machinable coating

Life of this patent

Blade outer air seal with machinable coating

Life of this patent

Abstract

Claims20