ELEMENT OF KOCHETOV SILENCER Russian patent published in 2011 - IPC F24F13/24 F16L55/33 G10K11/162 

FIELD: machine building.

SUBSTANCE: here is disclosed element of silencer consisting of case with flap cover. The case is filled with sound absorbing material placed in a protective shell. Walls of the case are formed with a sound absorbing structure made as cylinder perforated coaxial shells - internal and external ones. Between the shells there is installed a sound absorber made out of at least one profiled sheet. Also, profile of the sheet in cross section can be rectangular or trapezoidal.

EFFECT: improved acoustic characteristics in region of low, medium of high frequencies.

3 dwg