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US 10,851,996 B2Granted
Turbulators for cooling heat shield of a combustor
AssigneeRolls-Royce North American Technologies Inc.
InventorChristopher Dwayne DeBruhl
Life of this patent
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Abstract
Heat shields and methods of cooling a heat shield are provided. A heat shield of a combustor may be cooled. The heat shield comprises a first surface and a second surface, where the first surface is opposite the second surface, and the first surface is configured to face a combustion chamber. The heat shield may be cooled by directing airflow over the heat shield through channels towards an opening of the heat shield and past turbulators located in the channels.
Claims16
An apparatus comprising:
- a heat shield of a combustor, the heat shield comprising a first surface and a second surface, wherein the first surface is configured to face a combustion chamber, and the second surface is opposite the first surface;
- a plurality of channels located on the second surface of the heat shield;
- and
- a turbulator included in a channel, the channel included in the channels, wherein the channels are positioned in an offset radial arrangement, wherein in the offset radial arrangement, a longitudinal axis of each of the channels is tangent to a circle on a plane parallel with the second surface.
1 more element
A method comprising:
- cooling a heat shield of a combustor, wherein the heat shield comprises a first surface and a second surface, the first surface is opposite the second surface, and the first surface is configured to face a combustion chamber, wherein cooling the heat shield includes directing airflow over the heat shield through a plurality of channels towards an opening in the heat shield and past turbulators located in the channels, wherein the channels are positioned in an offset radial arrangement, wherein in the offset radial arrangement, a longitudinal axis of each of the channels is tangent to a circle on a plane parallel with the second surface.
Dependencies are inferred from the claim text.