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(11) | EP 1 439 365 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Heat exchanger |
| (57) Disclosed herein is a heat exchanger in which a header in the heat exchanger is made
of a material of plastic so that a regulator plate to define a passage of pipe can
be formed freely. Also, not only a passage between pipes but also a passage between
fine tubes in the same pipe can be formed. Accordingly, formation of a passage to
accomplish maximal heat exchange efficiency is possible. In addition, the heat exchange performance is improved by forming a more number of fine tubes having a less small diameter, compared to the pipes of the material of aluminum, using the pipes of the material of plastic. The heat exchanger according to the present invention constructed as above can accomplish the improvement of heat exchange performance by the maximum of 30% over the heat exchanger of the material of aluminum. |