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US 8,756,812 B2Granted
Air cooled heat shield
OwnerJames E. Whiteinventor
Life of this patent
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Abstract
A heat shield is disclosed comprising a formed sheet having a thickness, an exterior shielding surface, and an interior shielded surface, wherein the exterior shielding surface comprises a multiplicity of protruding perforations. The protruding perforations comprise protrusions increasing surface area and generating turbulent flow, and small openings through the shield to allow convection air flow to pass through.
Claims20
A method of limiting the transfer of heat from a heat source to a shielded object, the method comprising the steps of:
- providing a heat shield having a heat reflective sheet, the sheet having a thickness bounded by a first sheet side and a second sheet side, the first sheet side having a first sheet surface and the second sheet side having a second sheet surface, the sheet having:
- a plurality of protrusions having a free edge and extending outwardly from the first sheet side;
- and,
- a plurality of sheet apertures formed within the sheet, each aperture being positioned substantially adjacent to at least a portion of one of the protrusions and being bounded at least in part by the free edge of the one of the protrusions;
- placing the heat shield between a heat source and a shielded object;
- and,
- exposing the first sheet side to an air flow directed across the first sheet side the air flow receiving heat transferred from the heat shield, each of the one or more protrusions extending from the first sheet side a distance less than the thickness of the sheet.
4 more elements
Dependencies are inferred from the claim text.