| 摘要 |
The pulses are generated by a valve-free pressure machine, i.e. rotation compressor (2), in which the pressure, when the compressor (2) is opened towards its outlet hole (23), differs from the pressure in the amount of gas (1). The pulses are generated in the way that the working liquid, influenced by the above mentioned pressure difference, flows in high speed through the outlet hole (23). The acoustic output of the pulses generated in this manner can achieve up to 20 kW.<IMAGE>
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