Patent ID: 6920755

Claim:
A charged internal combustion engine ( 1 ) including: (a) at least one stage of charging by a turbocharger ( 3 ); (b) at least one supplemental compressor ( 4 ) connected to the turbocharger, (c) an electric motor ( 5 ) drive for the supplemental compressor ( 4 ), the electric motor regulated based on the boost pressure output of the turbocharger in relation to the prescribed boost pressure curve, so that the supplemental compressor is switched off when the required boost pressure is reached by the turbocharger; and (d) at least one closing ( 11 ) or switching means ( 8 ) provided between the supplemental compressor ( 4 ) and the turbocharger, wherein an electronic control device ( 40 ) is present to regulate operation of the supplemental compressor ( 4 ) and the closing ( 11 ) or switching ( 8 ) means.