Air intake device for an internal combustion engine with crankcase ventilation

摘要

An air intake device for an internal combustion engine with crankcase ventilation in which crankcase gases are conducted via a duct structure (25) into the interior (18) of the air intake device (10). The duct structure ensures a quasi cylinder-selective feed through a plurality of feed inlets (27) into individual intake channels (20a). The duct structure is formed by the wall of the intake manifold and is sealed by a cover, so that the intake manifold can be produced cost-effectively. This construction has the advantage of ensuring uniform distribution of the crankcase gases among the cylinders while simultaneously enabling economically efficient manufacture.