Air filter arrangement for e.g. internal combustion engine of vehicle, has inner skin, partition walls and inner surface cooperating with each other to define rear volume staying in fluidic connection with inner flow path by aperture

摘要

The arrangement (22) has a resonator (40) arranged in a receiving portion (76) of an air outlet (74). The resonator comprises concentric partition walls defining an inner flow path. An inner skin is arranged over a circumference at the inner flow path and in contact with the concentric partition walls. The inner skin defines an aperture. The inner skin, the concentric partition walls and an inner surface of the receiving portion cooperate with each other to define rear volume. The rear volume stays in fluidic connection with the inner flow path by the aperture.