ICING PROTECTION SYSTEM AND METHOD FOR ENHANCING HEAT TRANSFER
First Claim
1. An icing protection system for preventing the formation of ice on a surface that is susceptible to icing, the system comprising:
- a substrate having a first surface, a second surface opposite the first surface and a thickness separating the first surface and the second surface; and
a metallic layer deposited on the first surface of the substrate, the metallic layer operable for enhancing heat transfer from a heated gas in flow communication with the metallic layer through the thickness of the substrate to prevent the formation of ice on the second surface.
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Accused Products
Abstract
An icing protection system and method for enhancing heat transfer includes a substrate having an inner wall, an outer wall and a thickness separating the inner wall and the outer wall. A metallic layer deposited on the inner wall of the substrate by an electric arc thermal spray deposition process using at least one metallic wire has a thickness between about 0.203 mm (0.008 inches) and about 0.432 mm (0.017 inches), a surface roughness greater than about 12.7 microns (500 micro-inches) Ra, and a heat transfer augmentation of at least about 1.1. The metallic layer is formed on the inner wall from an M-Cr—Al alloy where M is selected from Fe, Co and Ni. The metallic layer defines a plurality of turbulators that act as micro-fins to enhance heat transfer from a heated gas in flow communication with the metallic layer through the substrate to prevent the formation of ice on the outer wall.
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Citations
20 Claims
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1. An icing protection system for preventing the formation of ice on a surface that is susceptible to icing, the system comprising:
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a substrate having a first surface, a second surface opposite the first surface and a thickness separating the first surface and the second surface; and a metallic layer deposited on the first surface of the substrate, the metallic layer operable for enhancing heat transfer from a heated gas in flow communication with the metallic layer through the thickness of the substrate to prevent the formation of ice on the second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for enhancing heat transfer to a surface that is susceptible to icing, the method comprising:
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providing a substrate having a first surface, a second surface opposite the first surface, and a thickness separating the first surface and the second surface; and depositing a metallic layer on the first surface; and disposing a heated gas in flow communication with the metallic layer to enhance heat transfer from the heated gas through the thickness of the substrate and thereby prevent the formation of ice on the second surface. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An icing protection system for preventing the formation of ice on an aircraft structure that is susceptible to icing and for enhancing heat transfer in the aircraft structure, the system comprising:
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a substrate having an inner surface, an outer surface opposite the inner surface and a thickness separating the inner surface and the outer surface; a metallic layer deposited on the inner surface by an electric arc thermal spray deposition process, the metallic layer defining a plurality of micro-fins operable for enhancing heat transfer from a heated gas in flow communication with the metallic layer through the thickness of the substrate to prevent the formation of ice on the outer surface. - View Dependent Claims (18, 19, 20)
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Specification