Patent ID: 8701637

Claim:
An internal combustion engine system, comprising: a turbine; a compressor connected to the turbine via a common shaft; a fresh air system; an exhaust gas system; and an exhaust gas recirculation system, wherein the exhaust gas recirculation system has an exhaust gas valve assembly for controlling a removal flow of an exhaust gas, which enters at a removal point from an exhaust gas line of the exhaust gas system into a recirculation line of the exhaust gas recirculation system, wherein the exhaust gas recirculation system has a fresh air valve assembly for controlling an introduction flow, which enters at an introduction point from the recirculation line into a fresh air line of the fresh air system, wherein the exhaust gas valve assembly is permanently displaceable between a first position and a second position for generating the removal flow, the first position increases the pressure in the exhaust gas line at the removal point with respect to an initial exhaust gas pressure, and the second position decreases the pressure of the exhaust gas in the exhaust gas line at the removal point to the initial exhaust gas pressure so that positive pressure pulses with a pressure which is increased with respect to the initial exhaust gas pressure follow each other, wherein the fresh air valve assembly is permanently displaceable between a first position and a second position for generating the introduction flow, the first position decreases the pressure in the fresh air line at the introduction point with respect to an initial fresh air pressure and the second position increases the pressure in the fresh air line at the introduction point to the initial fresh air pressure so that negative pressure pulses with a pressure which is decreased with respect to the initial fresh air pressure follow each other, wherein the valve assemblies are synchronized such that the positive pressure pulses entering at the removal point into the recirculation line meet the negative pressure pulses at the introduction point; and wherein an inlet to the compressor is configured to receive the fresh air after passing through the fresh air valve assembly; wherein the fresh air valve assembly is a flap-shaped valve member that is rotatably displaceable in a cross section of the fresh air line; wherein the flap-shaped valve member includes a control disk disposed on an end of the valve member; and wherein the control disk has an edge with a recess formed therein, and the recess is configured to pass over the introduction point in the fresh air line to permit the exhaust gas to pass through the introduction point and into the fresh air line.