Abstract: An internal combustion engine with a 2-stage charge loading includes a connection conduit with a supercharger intercooler provided between the compressors of the low pressure stage and high pressure stage. The supercharger intercooler is configured via a cooling unit in the charge air guiding connection conduit between the compressor of the ATL-low pressure stage and the compressor of the ATL-high pressure stage having a cooling medium flowing therethrough as well as by a specially configured section of the connection conduit. The connection conduit in this section forms with its wall the outer wall of the supercharger intercooler and delimits an air through-put volume sufficient to effect, via a cooling medium flowing through the cooling unit, an acceptable cooling of charge air flowing through the cooling unit that is built into the connection conduit.

Abstract: A method of recycling exhaust gas of a multi-cylinder reciprocating internal combustion engine with an exhaust turbocharger operates without EGR flutter valves and also reduces the amount of designed complexity for the entire EGR design. Exhaust gas recycling is only permitted in the system during certain phases of operation of the internal combustion engine. Only the exhaust gas expelled from one cylinder of a cylinder row is completely or partially recycled at a preset exhaust gas recycling rate via the exhaust gas recycling duct to the blowing air manifold duct, while such exhaust gas recycling is prevented between such exhaust gas recycling phases of operation. The exhaust gas expelled from the cylinder or cylinders is also fed to the exhaust gas turbocharger via the gas manifold duct.