The tube has a housing with an inlet opening (2) for compressed air and made of plastic e.g. fiber glass-reinforced polyamide, and a heat exchanger (8) e.g. evaporator of a cooling circuit, arranged in a main channel (4) in the housing. A bypass channel (5...

The method involves generating pressure oscillations in vibration tube and/or resonant system (18), when resonance system is operated at low rotational speed of internal combustion engine (1) in compression mode, so that positive vibration amplitudes in co...