MUFFLER Russian patent published in 2000 - IPC

FIELD: mechanical engineering; exhaust mufflers using for operation resonance, interference effect and gas flow throttling. SUBSTANCE: muffler has oval housing with tubes and partition dividing the housing into chambers in one of which two curved screens are installed. Chambers occupying entire volume of housing and tube connecting the chambers are made acoustically equivalent. Perforations in partition installed in each chamber are located in zone of intersection of axes of oval. Intake and outlet tubes are displaced along different axes of oval. Outlet tube is provided with slots and is furnished with high- frequency resonator in slot area. EFFECT: enhanced performance of muffler at simplified design and reduced cost of production owing to rational organization of gas flow and optimum make of main members. 7 cl, 8 dwg