| 摘要 |
A heat exchanger, in particular a heating element for motor vehicles, is provided that includes a block that has flat tubes and corrugated fins and a collecting tank on the inlet side and on the outlet side, wherein the flat tubes comprise flat sides having embossed vortex generators, and a coolant can flow through the flat tubes. The flat tubes can have an inner diameter in the range of 0.9 to 1.2 mm, preferably of 1.0 mm, and the corrugated fins can have a height in the range of 6.3 to 8.0 mm, preferably of 8.3 mm.
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