Method for assembly of serpentine heat exchanger

Details Method for assembly of serpentine heat exchanger Method for assembly of serpentine heat exchanger

1989-05-24

1990-07-24

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29446, 29505, 29514, 29727, 29890046, 228183, B21D 5302

Patent

active

049426540

ABSTRACT:
Serpentine heat exchanger tubes are formed with spaces smaller than the fins which must fit in the spaces, the tubes are elastically spread apart so that tubes can be inserted, and the tubes are then allowed to contract to grip the elements for good contact and to help maintain the assembly until a brazing operation. A machine for inserting the fins has spreader blades for insertion into the tube spaces remote from the tube bends, and including sets of blades which then are moved toward the bends to fully dilate the spaces to permit easy insertion of the fins.

REFERENCES:
patent: 3021804 (1962-02-01), Simpelaar
patent: 4044443 (1977-08-01), Chartet
patent: 4486933 (1984-12-01), Iwase et al.
patent: 4587701 (1986-05-01), Koisuka et al.
patent: 4637132 (1987-01-01), Iwase et al.
patent: 4730669 (1988-03-01), Beasley et al.
patent: 4831701 (1989-05-01), Yutaka

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