Additional compressor housing

The cylindrical silencer (50) includes an air outlet opening (54) for connection to the intake duct of the compressor of a turbocharger and a leading to the air outlet opening, while at least a redirection from the radial direction in the axial direction executive flow channel. The compressor housing additive (40) has an annular cavity (43) and a cavity opening into the feed line (44) for a gaseous medium. In the area of ​​a front-side housing wall (51) of the muffler are injection ports (55) are provided which are axially directed and connect the annular cavity (43) with the flow channel of the muffler. Through the injection of the gaseous medium in the air to be compressed prior to the deflection of the flow upon exiting the central opening of the muffler, is carried out at this same deflection mixing the gaseous medium with the air as well as an elimination of the costs associated with the insufflation turbulence in the intake flow.