Working of mufflers
The exhaust gases with high vibration enter at left end. As they move through the perforated piped, some sound waves leak through the pores on pipes and either get absorbed or get cancelled out by colliding with other waves. The gases move further and come to second compartment and get reflected by the walls. The sound waves reflected from the right wall collide with the incoming waves and cancel them out. From the second compartment gases move again to left side to the first compartment. And again through the third pipe they move on to the tail pipe. While moving through perforated pipes and left-right compartments, most of the high frequency sound waves are cancelled out due to interference with other waves or get absorbed. At last, all the exhaust gases pass through the tail pipe into the environment. While moving through the muffler, most of high frequency sound waves get cancelled out by collision with other waves and the noise of engine is reduced to a bearable level.
Also Read :
How does starter motors work?
Everything About BS-6
Royal Enfield motorcycles have a characteristic powerful sound. Everyone of you must have listened to it. But, have you ever wondered why it is so? Let me explain.