Combined Coolers

The combined coolers work according to the compressor and air cooling principle. By ambient temperatures that exceed the wished process temperature, the control technologies are used, so that cooling water can be produced by the air cooling. Consequently the system is the ideal equivalent of open evaporation cooling systems without disadvantages of contamination, salt and oxidizer content, as well as water evaporation. By removal of water losses and by saving of chemicals for water treatment, the operating and maintenance costs are minimized considerably. The operational safety and efficiency of production equipment increase simultaneously. As all free cooling systems that are mounted outside, the combined coolers operate all the year round with antifreeze to avoid freezing in winter.

Efficient cooling for drives of mobile machines is becoming increasingly important. Specialist application and engineering knowledge is required for the selection of coolers to ensure that the optimum cooling system is chosen for each application. Amongst these systems are combined coolers which integrate cooling systems for various media into a single, compact system. Whether it is drives for construction machines, agricultural machines or industrial trucks, the power packs driving these machines have to be more and more compact and as the exhaust emission regulations become stricter, there is an increasing demand for auxiliary and processing systems like particle filters and exhaust gas recirculation. To correspond to these regulations, all operating parameters must stay within a defined range.