Heat exchanger
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United States of America Patent
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Issued Date -
Mar 31, 2005
app pub date -
Sep 24, 2004
filing date -
Sep 26, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A heat exchanger, which comprises a plurality of filler metal absorption means formed on both sides of each of porous smoothing tubes provided with both ends bonded to header pipes so as to prevent filler metal from flowing from the header pipes along scratches or die lines formed in the porous smoothing tubes and melting corrugated pins, thereby remarkably reducing failures generated by the melting of the pins, and having an improved external appearance compared to conventional heat exchangers having additional cutoff means.
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