04158908 is referenced by 13 patents and cites 5 patents.

Securement of flat heat exchange surfaces, particularly fins to tubular conduits of a heat exchanger. The heat exchange material has longitudinal, partially circular recesses parallel to the length of a tube for engaging opposite sides of the tube. The radii of the recesses corresponds to the outer diameter of the tube. The recesses extend through less than 180.degree. so that the flat parts of the heat exchange surface are spaced prior to securement to the tubes. Forces are applied normally to the surfaces, forcing them together, stretching the heat exchange material at the recesses, thereby producing a tight interference fit between the heat exchange surfaces and the tube to provide minimum resistance to conduction of heat. Securement may be by spot welding, riveting, or otherwise. The tube remains round and undeformed so the cross sectional heat exchange area remains the same.

Title
Securement of heat exchanger surfaces to tubes and method of fabrication
Application Number
506226
Publication Number
4158908
Application Date
August 7, 1975
Publication Date
June 26, 1979
Inventor
Larry J Ashton
Thousand Oaks
CA, US
Leo Block
Westlake Village
CA, US
Agent
Edward C Walsh
Albert M Herzig
Assignee
Raypak
CA, US
IPC
B23P 15/26
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