SILENCER FOR INTERNAL COMBUSTION ENGINE Russian patent published in 1994 - IPC

FIELD: engine engineering. SUBSTANCE: silencer has blade swirlers 11,21 positioned in end baffles 6,7. Width of blades 13 increases downstream. Narrow faces of blades 13, which is provided with plugs 15,23, face inlet branch pipe 2. Front face wall of the silencer is made of nozzle 3. The acceleration of gases, which is provided by the silencer, is so high that vacuum occurs at the inlet of the engine when its inlet valve is closed. The vacuum contributes to discharging gases from the next cylinder and improved filling of it with air-fuel mixture. EFFECT: enhanced efficiency of the engine. 4 cl, 4 dwg