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Sincerely Your, SURF3DMORE INFORMATION ABOUT 3D MODELS :
A MUFFLER (NORTH AMERICAN ENGLISH) OR SILENCER (BRITISH ENGLISH) IS A DEVICE FOR REDUCING THE NOISE EMITTED BY THE EXHAUST OF AN INTERNAL COMBUSTION ENGINE—ESPECIALLY A NOISE-DEADENING DEVICE FORMING PART OF THE EXHAUST SYSTEM OF AN AUTOMOBILE.
MUFFLERS ARE INSTALLED WITHIN THE EXHAUST SYSTEM OF MOST INTERNAL COMBUSTION ENGINES. THE MUFFLER IS ENGINEERED AS AN ACOUSTIC DEVICE TO REDUCE THE LOUDNESS OF THE SOUND PRESSURE CREATED BY THE ENGINE BY ACOUSTIC QUIETING. THE NOISE OF THE BURNING-HOT EXHAUST GAS EXITING THE ENGINE AT HIGH SPEED IS ABATED BY A SERIES OF PASSAGES AND CHAMBERS LINED WITH ROVING FIBERGLASS INSULATION AND/OR RESONATING CHAMBERS HARMONICALLY TUNED TO CAUSE DESTRUCTIVE INTERFERENCE, WHEREIN OPPOSITE SOUND WAVES CANCEL EACH OTHER OUT.