Cooling/refrigerating module for use on roof of rail vehicle, has housings provided with sound absorption units i.e. micro-perforated absorbers, that are provided with transit recesses, and chamber connected with absorbers and housings
The module has housings (4, 6, 10) provided with sound absorbers i.e. micro-perforated absorbers, that are provided with small transit recesses. A chamber is connected with the micro-perforated absorbers and the housings, where size of the chamber is dependent on blade frequency of ventilators (16)....
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Sprache: | eng ; ger |
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