Patent ID: 7127893

Claim:
An internal combustion engine having an intake section ( 6 ), a compressor ( 5 ) disposed in the intake section ( 6 ), a compressor impeller ( 19 ) rotatably supported in the compressor ( 5 ), the compressor ( 5 ) including an intake passage ( 18 ) by means of which combustion air is supplied to the compressor to be compressed therein to an elevated boost pressure, and an additional passage ( 11 ) formed separately and sealed off in a pressure-tight and flow-tight manner with respect to the axial compressor intake passage ( 18 ), the additional passage ( 11 ) being connected to the compressor intake passage ( 18 ) in an area surrounding the compressor impeller ( 19 ) at its upstream end, and an exhaust gas recirculation device ( 10 ) having a recirculation line ( 29 ) connected to the additional passage ( 11 ) for conducting an adjustable mass flow of exhaust gas from the exhaust section ( 4 ) of the engine into the intake section ( 6 ), such that the re-circulated exhaust gas is admitted directly to the impeller ( 19 ) while applying a swirl force to the impeller ( 19 ) of the compressor ( 5 ).