In this context, the inventive turbocharged device allows expansion from four to six exhaust gas turbochargers wherein in each one of {TAIL ~ the serial compressor arrangements} the compressor of {HEAD ~ the greater exhaust gas turbocharger} has a third compressor of an exhaust gas turbocharger arranged upstream of the larger one of the two exhaust gas turbochargers 
In this context , the inventive turbocharged device allows expansion from four to six exhaust gas turbochargers wherein in each one of { TAIL ~ the serial compressor arrangements } the compressor of { HEAD ~ the greater exhaust gas turbocharger } has a third compressor of an exhaust gas turbocharger arranged upstream of the larger one of the two exhaust gas turbochargers
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