Mehrblock-Wärmeübertrager

摘要

The invention relates to a multiblock heat-transfer system, comprising a first heat-transfer unit which contains a first heat-transfer tubular block (1) with at least a first collecting chamber (4, 5) at the side and comprising at least a second heat-transfer unit mounted onto the first, which contains a second heat-transfer tubular block (2) with at least a second collecting chamber (8, 9) at the side. According to the invention, the first and second collecting chamber each consist of their own collecting pipe (4, 9) and both collecting pipes are inserted into each other at their front faces and are connected in a fluid-tight manner. In said pipe connection area, the external diameter of one of the collecting pipes approximately matches the internal diameter of the other collecting pipe and a transverse partition is provided for separating the two collecting chambers. The invention can be used, for example, as a combined oil and gas-cooler heat-transfer system for motor vehicles with an oil-cooler circuit and CO2 air conditioning system.