Outlet guide vane assembly for a turbofan engine with combined acoustically absorbing and heat exchanging device, corresponding manufacturing method and turbofan engine

摘要

An outlet guide vane assembly for turbomachines is provided. The outlet guide vane assembly comprises one or more outlet guide vanes (21), wherein each of the one or more outlet guide vanes (21) comprises a first surface (54) and a second surface (56), and wherein the one or more outlet guide vanes (21) are disposed between an inner wall (23) and an outer wall (48) of an engine (10) and a surface cooler layer (62) disposed on at least a portion of the first surface (54), the second surface (56), or both of the one or more outlet guide vanes (21), wherein the surface cooler layer (62) comprises a metal foam, a carbon foam, or a combination thereof, wherein the metal foam, the carbon foam or the combination thereof is configured to augment heat transfer and enhance acoustic absorption.