Heat exchanger and method of manufacturing core plate

Details Heat exchanger and method of manufacturing core plate Heat exchanger and method of manufacturing core plate

2006-01-24

2006-01-24

Flanigan, Allen J. (Department: 3753)

Heat exchange

Side-by-side tubular structures or tube sections

With manifold type header or header plate

C165S082000, C165S152000

Reexamination Certificate

active

06988544

ABSTRACT:
A wave-shaped portion5b, the profile of which is formed into a wave-shape, is provided on the core plate5, and tubes are brazed to the core plate5under the condition that the tubes are inserted into holes5cformed in bent portions5a. Due to the above structure, even when a pitch between the tubes is reduced, it is possible to ensure a sufficiently high mechanical strength of the core plate5. Accordingly, the occurrence of a big difference in the mechanical strength between the core plate5and the tubes can be suppressed. Therefore, stress concentration at a joint portion of the core plate5and the tubes can be prevented. As a result, the mechanical strength of a radiator and the reliability (durability) of the joint portion of the core plate5and the tubes can be enhanced.

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patent: 6465113 (2002-10-01), Yamada et al.
patent: 2000-283689 (2000-10-01), None

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