Methods and apparatus for a micro-truss based structural insulation layer

An apparatus for maintaining a temperature differential between a component and a source of heat, the apparatus comprising:

• a first surface and a second surface opposite the first surface, the second surface being attached to the component;
• an impervious skin material comprising a plurality of holes formed therethough, the impervious skin material attached to the first surface such that the impervious skin material is disposed between the heat source and the first surface;
• a truss structure comprising a plurality of hollow members, each of the plurality of hollow members comprising a first end and a second end opposite the first end, the first end of each of the plurality of hollow members extending through a respective hole of the plurality of holes formed in the impervious skin material, the plurality of hollow members further comprising a fluid flow passing from the second end of each of the plurality of hollow members and out the first end of each of the plurality of hollow members to provide film cooling at the impervious skin material;
• and
• a fluid channel formed between the second surface and the second end of each of the plurality of hollow members, the fluid channel providing the fluid flow into the plurality of hollow members through the second end of each of the plurality of hollow members.