heat exchanger

Abstract

The invention relates to a heat exchanger (6) for transferring heat between a first gaseous fluid and a second liquid fluid, comprising: a plurality of tubes (17) extending through channels for guiding the first A first fluid passage (7) for a fluid, the tube exterior is coupled in a heat transfer manner with cooling fins (18) arranged in the first fluid passage (7), and the The first fluid can flow through the first fluid passage (7), and the second fluid passage (19) for guiding the second fluid is formed inside the tube; wherein, the tube (17) and the cooling fin (18) stacking on each other in a stacking direction (20) transverse to a main flow direction (21) of the first fluid in the first fluid passage (7) to form a cooler module (8) extension; wherein, in each case, the cooler module (8) has, in the stacking direction (20) on two outer sides facing away from each other, a side for laterally delimiting the first fluid passage (7) Part (9). If two said side parts (9) are fixedly connected to each other by means of at least one tension rod (23), which is separate from said cooling fins (18) and tubes (17) components, and allowing tension to be transmitted along said stacking direction (20), enhanced stability can be achieved.

Description

technical field [0001] The present invention relates to a heat exchanger for transferring heat between a first gaseous fluid and a second liquid fluid. The invention also relates to a fresh air system of an internal combustion engine, preferably of a motor vehicle, which is equipped with a heat exchanger as described above. Background technique [0002] Heat exchangers of this type are used, for example, in automobiles, for example, to dissipate heat from a cooling circuit in which a liquid coolant circulates, or respectively to supply heat to an air flow which can be exhausted into the environment or which can supply To the interior of the car for which it is heated. Preferably, the heat exchanger is a charge air cooler in a fresh air system for supplying the internal combustion engine with fresh air, which is arranged downstream of the charging mechanism (for example a turbocharger) , so that the charge air compressed and heated there is cooled before being supplied to t...

AI Technical Summary

Problems solved by technology

In particular, the cooling fins can be exposed to high mechanical stresses in the region of the connection points via which the cooling fins are fixedly connected to the adjacent tube or respectively to one of the side parts. connections, the high mechanical stress mentioned above can lead to failure of connections, for example these connections can be soldered connections, and / or can lead to failure of cooling fins

Damage to heat exchangers also involves reduced efficiency

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