Header plate for use in a heat exchanger

Details Header plate for use in a heat exchanger Header plate for use in a heat exchanger

2006-04-06

2008-08-19

Leo, Leonard R (Department: 3744)

Heat exchange

Side-by-side tubular structures or tube sections

With manifold type header or header plate

Reexamination Certificate

active

07413006

ABSTRACT:
A header plate (20) is provided for receiving the flattened tubes (14) of a heat exchanger. The header plate (20) includes a plurality of tube receiving openings (26), with each of the openings being surrounded by a flange or collar (28) that extends from a base wall (24) of the header plate (20) towards the heat exchanger core (12) to surround the exterior cross section of the associated tube (14). Each of the flanges (28) is shaped to conform to the exterior of the associated tube (14), and a blend radius R is provided at the interface between the base wall (24) and the flange (28). The blend radius R has a size that increases from a radius R1central to the length of a long side wall (30) of the flange (28) to a radius R2central to the length of a short side wall (32) of the flange (28).

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