Laminated heat exchanger

Details Laminated heat exchanger Laminated heat exchanger

1996-11-18

1998-02-17

Leo, Leonard R.

Heat exchange

With protector or protective agent

165153, 165176, F28D 103

Patent

active

057182841

ABSTRACT:
In a laminated heat exchanger having tube elements alternatingly laminated with fins, the plate thickness of an end plate is made smaller than the plate thickness of a formed plate constituting the tube element at the extreme end. Since the end plate becomes deformed more easily than the formed plate, even if pin holes are formed in the bonding area and condensed water becomes frozen in the pin holes, only the end plate will become distended, preventing deformation of the formed plate. Thus, even if pin holes are formed due to defective brazing in the bonding area of the formed plate which comprises the tube elements at the extreme end and the end plate, the tube element is prevented from becoming frozen and damaged, and the heat exchanging medium is prevented from leaking.

REFERENCES:
patent: 5176206 (1993-01-01), Nagasaka et al.
patent: 5447194 (1995-09-01), Hayashi et al.

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