Patent ID: 11959422
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. A gas turbine engine comprising:
a turbine section comprising a first vane stage having a forward face; and
a combustor disposed forward of the first vane stage, the combustor comprising a combustion chamber in fluid communication with the first vane stage, the combustion chamber radially defined between a first shell and a second shell, the first shell comprising a first seal assembly at an aft end of the first shell, the first shell comprising an exterior side and an interior side, the first shell further comprising a first mating surface on the exterior side, the first seal assembly comprising:
a brush seal forming a first seal between the first shell and the forward face, the brush seal comprising a brush seal backing plate mounted to the first shell, a retaining ring, and a plurality of bristles retained between the brush seal backing plate and the retaining ring, the brush seal backing plate comprising a second mating surface mounted to the first shell along the first mating surface; and
at least one cooling channel extending from the exterior side of the component to the interior side of the component, the at least one cooling channel comprising a groove formed in the second mating surface of the brush seal backing plate.