Heat exchange – With repair or assembly means – Positioner or retainer for settable material
Patent
1984-03-27
1985-03-05
Richter, Sheldon J.
Heat exchange
With repair or assembly means
Positioner or retainer for settable material
165150, 165151, 165178, 285137R, 285158, F28F 926
Patent
active
045025320
ABSTRACT:
A joint construction for a fin-and-tube type heat exchanger formed of aluminum suitable for use as an evaporator of a cooling system for an automotive vehicle, wherein an end plate near the open ends of tubes is formed with openings larger in diameter than the openings formed in fins to which the tubes are securedly fixed. The joint construction includes a flare formed at the open end of the tube by inserting a tube end flaring punch and restrained by the opening formed in the end plate to be kept from outwardly expanding more than is necessary. Thus the flare produced has high dimensional accuracy and a tube member can be joined to the open end of each tube by brazing with a high degree of accuracy and precision. The brazed joint produced has higher reliability in performance than brazed joints of the prior art. The use of the improved joint construction enables brazing to be carried out automatically and allows a compact size to be obtained in a fin-and-tube type heat exchanger.
REFERENCES:
patent: 1710811 (1929-04-01), Dewald
patent: 1926460 (1933-09-01), Slagel
patent: 1931467 (1933-10-01), Young
patent: 4321911 (1982-03-01), Offutt
patent: 4458749 (1984-07-01), Melnyk
Ide Hideo
Suzuki Misao
Tomozaki Ryozo
Uchita Takeshi
Hitachi , Ltd.
Richter Sheldon J.
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