PRESENTATIO

N ON MUFFLER

SUBMITTED BY VISHAL KUMAR

ROLL NO. 6313583

MUFFLER SYSTEM

• A muffler (silencer in many non-US English speaking

countries) is a device for decreasing the amount of noise

emitted by the exhaust of an internal combustion engine.

FUNCTION OF MUFFLER

The majority of the sound pressure produced by the engine is

emanated out of the vehicle using the same piping used by

the silent exhaust gases absorbed 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. An unavoidable side effect of muffler use is an increase

of back pressure which decreases engine efficiency.

MUFFLER TYPES

• CHAMBER MUFFLER• STRAIGHT -THROUGH MUFFLER• TURBO MUFFLER

CHAMBER MUFFLER

• In chamber muffler , more than one chamber included.• The sound wave is move in slow and less pressure.• Absorb the sound particle more than straight muffler.

CHAMBER MUFFLER

STRAIGHT -THROUGH MUFFLER

• The sound particle is move in straight way. • Fast in exhaust to remove noise.• Decrease the amount of heat developed in exhaust pipe.

STRAIGHT -THROUGH MUFFLER

TURBO MUFFLER

• It has a turbine that move with small force of sound.• Decrease the noise pressure very fast.• When the engine pressure is high in exhaust it back the

pressure by turbo and slow down speed of exhaust sound.

TURBO MUFFLER

WORKING DIAGRAM

EXHAUST VS SOUND

MATERIAL

USES

ADVANTAGES

• Low in cost.• Decrease the noise very easy.• Doesn’t effect the engine.• It is used in heavy loaded vehicle• Safe the pollution from sound heavy particle.

THANK YOU