Laminated heat exchanger

Details Laminated heat exchanger Laminated heat exchanger

1998-03-24

1999-04-13

Flanigan, Allen

Heat exchange

Radiator core type

Deformed sheet forms passages between side-by-side tube means

165176, 165DIG465, 165DIG466, 228183, F28D 103

Patent

active

058934120

ABSTRACT:
In order to prevent a communicating pipe from becoming damaged by water (in particular drain water) collecting in the gap formed between the tube element at one end of a heat exchanger that is constituted of a flat plate and a formed plate and the communicating pipe through defective brazing and repeatedly freezing and melting, a flange (32) and a bonding margin (11) continuous to the flange (32) are notched off over almost the entire circumference at the center on the inside of an indented portion (9) in a formed plate (16) which, together with a flat plate (15), constitutes a tube element (3b). Thus, while the communicating pipe (27) comes in contact with the internal surface of a flange (29) of a pipe connection hole (28) of the flat plate (15), it does not come in contact with the formed plate (16), thereby forming a gap bounded by the flat plate (15), the formed plate (16) and the communicating pipe (27).

REFERENCES:
patent: 5553664 (1996-09-01), Nishishita et al.
patent: 5617914 (1997-04-01), Kinugasa et al.
patent: 5649592 (1997-07-01), Nishishita

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