| 摘要 |
The invention relates to a heat exchange core, for example for cooling fluid coolers or charge air coolers, comprising flat tubes (1) have two narrow and two wide sides (10, 20) and having inner channels (30) and intermediate spaces (3) remaining between the wide sides (20) of adjacent flat tubes (1), at least some of the successive flat tubes (1) being subject to parallel fluid flow through them, the other medium flowing approximately transversely thereto through the intermediate spaces (3), and the two wide sides (20) of the flat tubes (1) having deformations in the form of waves (15), characterized in that the flat tubes (1) can be produced from at least one endless formed sheet metal strip (a), wherein the inner channels (30) are formed by another wave-shaped formed sheet metal strip (c) or a wave-shaped formed strip segment of the one sheet metal strip (a), the wave peaks and wave troughs thereof being metal bonded to the inner wide sides (20) of the flat tubes. The invention chiefly leads to cost reductions. |
