DAMPER Russian patent published in 2014 - IPC F01N1/08 F01N3/02 

FIELD: machine building.

SUBSTANCE: damper comprises casing with end walls, casing inner part having intake, central and discharge chambers, and intake and discharge branch pipes. Intake chamber accommodates different-length swirlers directed opposite said intake branch pipe and composed of phase inverters arranged in perforated case. Central chambers houses zigzag-like baffles making opposed diameter-alternating channels that resonators absorbing the energy of sound spectrum major frequencies. Helical flange is fitted in discharge chamber accommodating harmful substances heater-afterburner.

EFFECT: higher efficiency, decreased content of harmful substances.

1 dwg