Abstract: A gas turbine engine vane or blade comprises a plurality of micro-structures disposed on an internal surface of the outer wall. The micro-structures may comprise an array of fins having a thickness of less than 0.002?, for example. Cooling air may be impinged upon the surface and routed through at least one flow channel to convectively cool the outer wall. Additionally or alternatively, micro-channels may be disposed along a suction side wall and pressure side wall of the vane or blade to convectively cool the respective walls. An embodiment of a vane or blade in accordance with the present invention may be constructed from a plurality of thin metal foils, stacked and bonded together.

Abstract: According to the invention, an apparatus for transferring heat with a target is disclosed. The apparatus may include a body which defines a surface, inlet and outlet ports, inlet and outlet manifold passages, and heat transfer passages. The surface may couple the target with the body. The inlet port may be configured to receive and direct a fluid into inlet manifold passages. The outlet port may be configured to receive and output the fluid. The inlet and outlet manifold passages may be configured to receive and direct the fluid to and from the heat transfer passages. The heat transfer passages may be configured to receive and direct all of the fluid from the inlet manifold passages in one or more directions substantially parallel to the surface and substantially perpendicular the input manifold passages. At least one heat transfer passages may have a plurality of fins on at least one surface.

Abstract: According to the invention, an apparatus for transferring heat with a target is disclosed. The apparatus may include a body which defines a surface, inlet port, inlet manifold passages, heat transfer passages, outlet manifold passages, and outlet port. The surface may couple the target with the body. The inlet port may be configured to receive and direct a fluid into inlet manifold passages. The inlet manifold passages may be configured to receive and direct the fluid to the heat transfer passages. The heat transfer passages may be configured to receive and direct the fluid in a direction substantially parallel to the surface and substantially perpendicular the input manifold passages. The outlet manifold passages may be configured to receive and direct the fluid to an outlet port. The outlet port may be configured to receive and output the fluid.