Heat exchanger and heat transferring member with symmetrical...

Details Heat exchanger and heat transferring member with symmetrical... Heat exchanger and heat transferring member with symmetrical...

2007-06-19

2007-06-19

Leo, Leonard R. (Department: 3744)

Heat exchange

Radiator core type

Side-by-side tubes traversing fin means

C165S152000, C165S181000

Reexamination Certificate

active

10802697

ABSTRACT:
A plurality of angle portions2cof the fins on an upstream side and those on a downstream side of an air flow are provided so as to be substantially symmetrical with each other. Due to this, bending forces are continuously exerted on a thin plate-like fin material in a direction where the bending deformation of the fin material is cancelled, during the fin forming process. Accordingly, when the angle portions2care formed it can be prevented in advance that the fin material11is deformed in a state where the repeated deformations of the fin material11are accumulated in the same direction.

REFERENCES:
patent: 4469168 (1984-09-01), Itoh et al.
patent: 5329988 (1994-07-01), Juger
patent: 6401809 (2002-06-01), Zhang et al.
patent: 2002/0129929 (2002-09-01), Iwasaki et al.
patent: 2002/0189799 (2002-12-01), Ozaki
patent: 2005/0167088 (2005-08-01), Paulman
patent: 63-83591 (1988-04-01), None

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