Dual-station flexible hairpin tube expansion apparatus

Details Dual-station flexible hairpin tube expansion apparatus Dual-station flexible hairpin tube expansion apparatus

1988-06-06

1989-07-25

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Heat exchanger

291573C, 29430, 29523, 29796, B23P 1526

Patent

active

048501018

ABSTRACT:
A flexibly programmable belling and tension expanding device for plate fin heat exchanger coils is carried on a shuttle or carriage that moves between first and second work stations. An operator assembles a fin plate heat exchanger unit at a work table at one work station while the device automatically bells and expands the hairpin tubes of another unit at a second station. When assembly is complete, the operator signals a programmable controller, and the shuttle brings the device to the one coil after it completes the expanding of the other, and it commences an automatic expanding operation. Then the operator removes the expanded coil and assembles another coil at the second station while the device is belling and coiling at the one station.

REFERENCES:
patent: 3688533 (1972-09-01), Ames
patent: 3733673 (1973-05-01), Young et al.
patent: 4581912 (1986-04-01), Initani et al.
patent: 4631813 (1986-12-01), Daniels et al.
patent: 4738014 (1988-04-01), Gray

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