GAS ACOUSTIC SILENCER Russian patent published in 1994 - IPC

FIELD: mechanical engineering, silencers. SUBSTANCE: exhaust gas flow through branch pipe 2 enters the cavity of body 1 where it is double-split by splitters 7 and 14 and then is mixed reducing the noise level. The device has net-shaped member 5 and noise-insulating winding 6. Ejector 21 effectively removes exhaust gases from the cavity of body 1 due to air suction through annular clearance 27 and further through clearance 24. In the zone of deflector 26 the air is actively mixed with exhaust gases facilitating their additional combustion and cooling. The afterburned and cooled gas in the cavity of deflector 26 is split into two flows, the first one through the outlet hole of second truncated cone 13 and through the outlet hole of deflector 26 is discharged into the atmosphere, the second flow through slots 29 flows out into the atmosphere in the form of a fan excluding gas pressure rise (choking) in the silencer. EFFECT: improved efficiency. 12 cl, 5 dwg