AIR-INDUCTION UNIT FOR AN INTERNAL COMBUSTION ENGINE, COMPRISING A BYPASS FLAP ASSEMBLY THAT CAN BE INSERTED

摘要

The invention relates to an air-induction unit (1) for an internal combustion engine. Said unit comprises an exhaust-gas recirculation channel (2) with a passage (4), into which a bypass flap assembly can be inserted (6), said assembly comprising at least one bypass flap (10), which is rotatably fixed to a shaft (8) that can be driven by an actuator and a fixing flange (12) that is mounted in a floating manner on the shaft (8). According to the invention, the bypass flap (10) can be pivoted between a first position (31), in which an upstream section (32) of the exhaust-gas recirculation channel (2) is connected to a cooling channel (24) that leads to an exhaust-gas cooling unit and a second position (33), in which the upstream section (32) of the exhaust-gas recirculation channel (2) is connected to a bypass channel (26) that bypasses the exhaust-gas cooling unit. The bypass flap (10) is set up in the first (31) or second position (33) to conduct the exhaust-gas flow from the upstream section (32) of the exhaust-gas recirculation channel (2) into the cooling channel (24) or the bypass channel (26) without a change of direction.