EXHAUST MUFFLER FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2007 - IPC F01N1/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to exhaust mufflers for internal combustion engines used in sports cars. Proposed exhaust muffler contains at least one cylindrical chamber with end face walls and coaxial branch pipes whose cuts are arranged inside chamber with displacement through 0.2-0.4 of their diameter to end face walls of chamber from its middle. At least one partition made of noise-absorbing material is arranged in cylindrical chamber coaxially to branch pipe at a distance from each cuts of inlet and outlet branch pipes with displacement by 0.2-0.4 of their diameters.

EFFECT: improved efficiency of noise damping at provision of minimum hydraulic resistances.

5 cl, 1 dwg