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US 2015/0266074 A1Published application
Method of applying lubrication to legs of a hairpin tube
AssigneeBrazeway, Inc.
InventorsDavid W. Skrzypchak, Vikas Somani, Brian J. Christen
Life of this patent
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Abstract
A method and system for manufacturing a hairpin tube. The method includes cutting a coil of tube to provide a plurality of lengths of tubes, and bending each length of tube to form a plurality of hairpin tubes. A lubricant is then atomized with an injector nozzle, and injected into at least one open end of each hairpin tube. After lubricating the hairpin tubes, the legs of each hairpin tube are expanded.
Claims20
A method for manufacturing a hairpin tube, comprising:
- cutting a length of tube from a coil of tube;
- atomizing a lubricant with an injector nozzle;
- lubricating an interior of the tube with the atomized lubricant
A method for manufacturing a hairpin tube, comprising:
- cutting a length of tube from a coil of tube;
- atomizing a lubricant mixture with an injector nozzle;
- lubricating an interior of the tube with the atomized lubricant mixture, wherein the lubricant mixture includes lubricant additive and a solvent.
Dependencies are inferred from the claim text.