| 摘要 |
A heat exchanger comprises heat exchanging tubes (3) with a profiled inner and/or outer surface, which profiled surface provides at least one cooling fin. The heat exchanging tubes (3) may each be made of a helically wound profiled strip (4) with intermeshing profiled edges (5, 6), which perform both as cooling fins and reinforcement ribs of the tube, such that the heat exchanging capacity is increased and the wall thickness of the tube may be decreased and the heat exchanger will be more efficient and lighter than conventional heat exchangers with cylindrical heat exchanging tubes.
|
