General Electric Company
Apparatus including heat exchanger and sound attenuator for gas turbine engine

Abstract:

An apparatus for attenuating sound waves includes a first surface, a second surface opposite the first surface, and at least one opening defined by the second surface. The apparatus also includes a heat exchanger defining a plurality of cooling channels therein and including a plurality of fins. The plurality of cooling channels extend between the first surface and the second surface. The plurality of fins extend from the second surface. The apparatus further includes at least one cavity extending between the first surface and the second surface. The at least one cavity is in flow communication with the at least one opening. The at least one opening and the at least one cavity are configured to attenuate the sound waves. The apparatus also includes at least one passageway extending between the at least one opening and the at least one cavity and positioned between the plurality of cooling channels.