FIELD: machine engineering.
SUBSTANCE: noise silencer contains a cylindrical casing rigidly connected to the end inlet and outlet nozzles rigidly connected to the central pipe having perforation, the outlet pipe is made in form of a disk having at least three holes in the peripheral part, a central pipe having perforations in form of rectangular gaps of at least three which is associated with the central solid part of the disc, and between the casing and central pipe the sound-absorbing element is installed such that disk holes are connected with cavity for the sound-absorbing element location.
EFFECT: improved efficiency of noise suppression.
3 dwg
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