Flat tube heat exchanger with more than two flows and a deflecting bottom for motor vehicles, and process for manufacturing the same
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United States of America Patent
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Nov 13, 2001
Grant Date -
N/A
app pub date -
Jan 5, 1999
filing date -
May 7, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a flat tube heat exchanger with two or more flows for motor vehicles with a deflecting (or reversing) bottom for deflecting (or reversing) adjacent flows of the flat tubes. According to the invention, it is provided that the deflecting bottom is resolved into deflecting bowls individually assigned to each flat tube, which bowls are connected to one another only via their connection to the respectively assigned flat tubes. The invention also relates to a process for manufacturing such a flat tube beat exchanger by pulling off, straightening and cutting into sections the flat tubes from a coil, mechanically pre-assembling the flat tube heat exchanger from its structural parts including the flat tubes and soldering or brazing. Here, it is provided that the deflecting bowls are mechanically pre-assembled with the flat tubes after they have been cut into sections and before pre-assembling the flat tube heat exchanger with the flat tubes.
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