FIELD: physics.
SUBSTANCE: invention relates to horns operated by intermittent chopping of gas or fluid flows. Proposed horn comprises coaxially arranged stator and rotor with openings arranged regularly on their surfaces along circumference, drive to revolve rotor and appliance to feed gas or fluid into rotor. Horn rotor consists of random number of L consecutive lengthwise sections made with even number of openings, i.e. 2k, 2k+2, 2k+4, …, 2k+2L-2, respectively, while stator consists of L-1 consecutive lengthwise sections made with uneven number of openings, i.e. 2k+1, 2k+3,…, 2k+2L-3, respectively. Note here that the center of every section covers rotor sections boundary to simultaneously generate L sounds of natural series, that is, related with k: k+1: k+2: …: k+L-1, with absolute peaks defined by rotor rpm.
EFFECT: expanded operating performances, simple design and higher reliability.
2 cl, 7 dwg, 4 tbl, 1 ex
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