Blade outer air seal with inward-facing dovetail hooks and backside cooling
AssigneeUnited Technologies Corporation
InventorsWilliam M. Barker, Thomas E. Clark, William Wangard, III, Danielle Mahoney
Life of this patent
Estimating the term…
Abstract
A blade outer air seal includes a carrier that has a dovetail and a ceramic seal segment supported on the dovetail. The ceramic seal segment has first and second axial ends, first and second circumferential sides, an inner side, an outer side, and first and second inward-facing dovetail hooks that project from the outer side and define a dovetail key. The ceramic seal segment is axially receivable onto the dovetail of the carrier via the dovetail key.
Claims20
A blade outer air seal comprising:
- a carrier having a dovetail;
- and
- a ceramic seal segment having first and second axial ends, first and second circumferential sides, an inner side, an outer side, and first and second inward-facing dovetail hooks projecting from the outer side and defining a dovetail key there between, the ceramic seal segment being axially receivable onto the dovetail of the carrier via the dovetail key, the dovetail supporting the ceramic seal segment.
A gas turbine engine comprising:
- a compressor section;
- a combustor in fluid communication with the compressor section;
- and
- a turbine section in fluid communication with the combustor,
- the turbine section including a plurality of blade outer air seals, each said blade outer air seal comprising:
- a carrier having a dovetail, and
- a ceramic seal segment having first and second axial ends, first and second circumferential sides, an inner side, an outer side, and first and second inward-facing dovetail hooks projecting from the outer side and defining a dovetail key there between, the ceramic seal segment being axially receivable onto the dovetail of the carrier via the dovetail key, the dovetail supporting the ceramic seal segment.
A method of assembling a blade outer air seal, the method comprising:
- providing a carrier that has a dovetail;
- providing a ceramic seal segment that has first and second axial ends, first and second circumferential sides, an inner side, an outer side, and first and second inward-facing dovetail hooks that project from the outer side and define a dovetail key there between;
- and
- axially moving the ceramic seal segment between a disassembled position in which the carrier does not support the ceramic seal segment and an assembled position in which the carrier supports the ceramic seal segment.
Dependencies are inferred from the claim text.