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US 2025/0216162 A1Published application
Heat Exchangers and Systems Thereof
AssigneeNelumbo Inc.
InventorsLance R. Brockway, David C. Walther
Life of this patent
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Abstract
Improved heat exchangers and methods of manufacturing the heat exchangers are provided. The methods include modification of surface(s) of the heat exchanger in an integrated manner during manufacturing, to impart desired properties such as decreased corrosion, pressure drop, and water retention, and increased anti-frosting performance.
Claims20
-41. (canceled)
A method for manufacturing a heat exchanger, comprising:
- (a) assembling and temporarily connecting individual components of a heat exchanger, thereby forming a temporary heat exchanger assembly;
- (b) subjecting the temporary heat exchanger assembly to a surface modification process to create a porous, nanostructured surface;
- and
- (c) exposing the temporary heat exchanger assembly with the porous, nanostructured surface to a temperature between 250° C. and 585° C., thereby forming the heat exchanger.
1 more element
A method of manufacturing a heat exchanger, comprising:
- (a) subjecting individual components of a heat exchanger assembly to a surface modification process to create a porous, nanostructured surface on at least a portion of each of the individual components;
- (b) assembling and temporarily connecting the individual components, thereby forming a temporary heat exchanger assembly with a porous, nanostructured surface;
- and
- (c) exposing the temporary heat exchanger assembly with the porous, nanostructured surface to a temperature between 250° C. and 585° C., thereby forming the heat exchanger.
1 more element
A method for bonding aluminum based alloy parts comprising:
- (a) immersing alloy parts in a solution comprising a metal salt, thereby producing a porous, nanostructured surface less than 20 microns in thickness on said alloy parts;
- (b) constructing a temporary assembly of said alloy parts;
- (c) exposing the temporary assembly of alloy parts to a temperature of 250° C. to 585° C. for about 1 minute to about 1 hour, thereby forming a ceramic bonded assembly of said alloy parts with a nanostructured surface;
- and
- (d) applying a second material to the ceramic bonded assembly, wherein the second material is wicked into the porous, nanostructured surface of the ceramic bonded assembly in order to improve the mechanical properties of the assembly, wherein the second material thickness is less than 25 microns.
2 more elements
Dependencies are inferred from the claim text.