Patent ID: 8671682

Claim:
An internal combustion engine ( 10 ), comprising: a plurality of combustion cylinders; at least one exhaust manifold ( 12 ) coupled with said combustion cylinders; at least one intake manifold ( 11 ) coupled with said combustion cylinders; a first turbocharger including a first turbine ( 21 ) having an inlet and an outlet, said first turbine inlet being fluidly coupled with said exhaust manifold ( 12 ) and having variable turbine geometry, and a first compressor ( 22 ) having an inlet and an outlet, wherein the first turbine ( 21 ) is free of a bypass piping for bypassing at least a portion of exhaust gas around the first turbine ( 21 ); a second turbocharger including a second turbine having an inlet and an outlet, said second turbine inlet having variable turbine geometry and being fluidly coupled with said first turbine outlet, and a second compressor ( 32 ) having an inlet and an outlet, said second compressor outlet fluidly coupled with said first compressor inlet, said first compressor outlet fluidly coupled with said intake manifold; and an EGR line ( 7 ) for feeding exhaust gas from the exhaust manifold to a line fluidly connecting the second compressor ( 32 ) to the first compressor ( 22 ).