Effusion momentum control

Details Effusion momentum control Effusion momentum control

2006-12-12

2006-12-12

Rodriguez, William H. (Department: 3746)

Power plants

Combustion products used as motive fluid

Process

C060S754000

Reexamination Certificate

active

07146816

ABSTRACT:
A combustor liner for shielding an engine from heat generated in a combustion zone includes a sheet with a cool surface for intercepting a cooling air stream and a hot surface enclosing the combustion zone, the combustor liner further including an array of effusion holes extending from the cool surface to the hot surface to allow a portion of the cooling air stream to pass through the effusion holes into the combustion zone, where a portion of the array includes a plurality of upstream-pointed effusion holes oriented such that each upstream-pointed effusion hole has an orientation obtuse to a direction of main flow in the combustion zone so as to control the momentum of cooling air passing into the combustion zone.

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