Intake device with inertia supercharging tubes and resonant tubes of adjustable length

The device has length-adjustable resonance channels (12) between a resonance collector and two oscillating collectors (13). Connection channels (34) are positioned between the oscillating collectors and the length-adjustable parts of the resonance channels, to bridge a spatial distance between the oscillating collectors and the cylindrical volume defined by at least one adjusting housing (20). Several resonance channels are integrated in a single housing.