Design And Function: Resonators
Depending on engine variant, there are up to six integrated or separate resonators in a number of places in the air distribution system.
The resonators are designed to reduce intake noise and tuned to operate within a high frequency range of 500-5000 Hz. This means that they very effectively reduce the noise from the pressure pulses produced by the compressor. This is in contrast to previously used resonators on, for example, engine D5244T10 and B6324S, both of which had resonators tuned to 100-500Hz.