Heat transfer enhancement features for a tubular wall combustion chamber
AssigneeUnited Technologies Corporation
InventorsJim Clark, Gregg Jones
Life of this patent
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Abstract
A combustion chamber for use in an engine, such as a rocket engine, has an inner wall with a corrugated configuration. The inner wall is formed with a plurality of tubes for carrying a coolant. As a result of the tubular construction, the inner wall has a plurality of spaced apart crowns and a plurality of valleys intermediate with the spaced apart crowns. To enhance the rate of heat flux or transfer in the valleys, a device is installed in each valley to cause local intensification of the turbulence in the hot gas flow in an effective way. The device may take the shape of a chevron or a bump.
Claims22
A combustion chamber for use in an engine, said combustion chamber comprising:
- an inner wall structure having a configuration with a plurality of spaced apart crowns and a plurality of valleys intermediate with said spaced apart crowns;
- and
- means in each of said valleys for enhancing the rate of heat flux.
An engine comprising:
- a combustion chamber having an inner wall with a plurality of embedded tubes;
- said inner wall having a surface formed by a plurality of spaced apart crowns and a plurality of spaced apart valleys;
- and
- means within each said valley for enhancing the heat transfer rate within the valley.
Dependencies are inferred from the claim text.