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Hydrostatic Fan Drive Systems

The combustion engine and cooler are decoupled mechanically so that vehicle manufacturers can select an optimum position for the cooler and therefore use previously unusable installation space. The power is generated by a variable axial piston pump A10VO with ED control. The Rexroth system solutions feature a CAN-bus-enabled control unit, specially optimized for the fan drive, that evaluates all the important temperature parameters for coolant, oil, charge air, and exhaust gas recirculation and controls a variable axial piston pump/external gear motor combination. The compact, extremely high-performance hydraulic system keeps the operating temperature within a very narrow temperature window in line with operating requirements so that the engines meet the legally allowable low emission levels.