Heat exchange – Tubular structure – With support or flow connector
Patent
1997-07-28
1999-08-24
Leo, Leonard
Heat exchange
Tubular structure
With support or flow connector
285197, F28F 904
Patent
active
059413042
ABSTRACT:
A heat exchanger includes at least one elongate header of metal, a plurality of refrigerant flow tubes each having one open end exposed to the interior of the header and a plurality of heat radiation fins extending along the tubes. A connector of metal is brazed to the header to provide a fluid communication between the interior of the header and an external pipe member through an opening formed in a wall of the header. The connector comprises a mating surface which mates the wall of the header; a connecting surface positioned at an opposite side of the mating surface; a pair of side surfaces each being positioned between the mating and connecting surfaces; a through bore which extends between the mating and connecting surfaces; and a groove formed in each of the side surfaces along an axis of the elongate header. The groove is positioned close to the mating surface to leave or define therebetween a thin mounting portion of the connector. The thin mounting portion is so sized as to achieve a desired argon arc spot welding between the connector and the wall of the header.
REFERENCES:
patent: 5271460 (1993-12-01), O'Brien
patent: 5289870 (1994-03-01), Dierbeck
patent: 5363910 (1994-11-01), Baba et al.
patent: 5379834 (1995-01-01), Tokutake
patent: 5456089 (1995-10-01), O'Brien
patent: 5477919 (1995-12-01), Karube
Igai Kazunobu
Inaba Hiroyuki
Yamazaki Etsuko
Calsonic Corporation
Leo Leonard
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