Combustion liner with open cell foam and acoustic damping layers

摘要

The disclosure is directed to a gas turbine engine combustion liner and a gas turbine engine. The gas turbine engine combustion liner may include a thermally cooled wall section, an acoustically damped wall section, or a thermally cooled and acoustically damped wall section. Open cell foam or honeycomb may be disposed between inner and outer combustion liner walls. The walls, open cell foam, or honeycomb may be made of a composite material.

主权项

1. A combustion liner, comprising:
an outer combustion liner wall; an inner combustion liner wall; an open cell foam disposed between the outer combustion liner wall and the inner combustion liner wall, wherein at least one of the outer combustion liner wall and the inner combustion liner wall includes a plurality of openings extending therethrough; and a plurality of cells exposed to the plurality of openings; wherein the open cell foam is formed of a composite material, wherein the composite material of the open cell foam is a ceramic matrix composite.