Insulation configuration for thermal appliances
AssigneeOwens Corning Intellectual Capital, LLC
InventorsManoj K. Choudhary, Francis S. Tyler
Life of this patent
Estimating the term…
Abstract
An insulation system for a thermal oven. The insulation system comprises a cabinet and a liner positioned within the cabinet. The liner defines an oven cavity. The liner includes opposing sides, a top, a bottom, a front and a back. A layer of insulation is positioned between the cabinet and the outside of the opposing sides, top, bottom and back of the liner. The layer of insulation is positioned to create an air gap between the insulation and the opposing sides, top, bottom and back of the liner. The insulation has a thermal energy reflective facing attached to an interior surface facing the liner.
Claims22
An oven comprising:
- an outer cabinet having interior surfaces;
- a liner positioned within the outer cabinet and including an outside surface to define an oven cavity that is configured to operate at temperatures of at least 500° F.;
- an inner layer of fibrous insulation material that engages the outside surface of the liner, the inner layer of fibrous insulation material having a first density and configured to reduce convective heat transfer without having a substantial effect on radiant heat transfer, wherein the inner layer is made from glass fibers, mineral wool, or rock wool;
- a thermal energy metallic foil reflective layer that engages the inner layer of fibrous insulation material, wherein the thermal energy reflective layer is configured to reflect radiant heat transfer;
- an outer layer of fibrous insulation material disposed around the thermal energy reflective layer, the outer layer of fibrous insulation material having a second density that is greater than the first density of the inner layer of fibrous insulation material, wherein the outer layer is made from glass fibers, mineral wool, or rock wool;
- and
- an air gap provided between the outer layer of fibrous insulation material and the outer cabinet
- wherein the inner layer of fibrous insulation material, the thermal energy metallic foil reflective layer and the outer layer of fibrous insulation material prevent a temperature of the outer cabinet from exceeding 172° F.
An oven comprising:
- an outer cabinet having interior surfaces;
- a liner positioned within the outer cabinet and including an outside surface to define an oven cavity that is configured to operate at temperatures of at least 500° F.;
- an inner layer of fibrous insulation material that engages the outside surface of the liner, the inner layer of fibrous insulation material having a first density, wherein the inner layer is made from glass fibers, mineral wool, or rock wool;
- an outer layer of fibrous insulation material disposed around the inner layer of fibrous insulation material, the outer layer of fibrous insulation material having a second density that is different than the first density of the inner layer of fibrous insulation material, wherein the outer layer is made from glass fibers, mineral wool, or rock wool;
- an air gap provided between the outer layer of fibrous insulation material and the outer cabinet;
- and
- wherein said gap is continuous, such that the outer layer of fibrous insulation material does not touch the outer cabinet
- wherein the inner layer of fibrous insulation material and the outer layer of fibrous insulation material prevent a temperature of the outer cabinet from exceeding 172° F.
Dependencies are inferred from the claim text.