It is a device that reduces the noise emitted by the exhaust of an internal combustion engine. And a noise-deadening device forms part of the exhaust system of an automobile. A muffler name known in (North American and Australian English) or silencer in (British English).
Car silencers installed inside the exhaust system of most internal combustion engines. The muffler engineered as an acoustic device. To reduce the noise of the sound pressure created by the engine by acoustic quieting.
The sound of burning-hot exhaust gas. Exiting the engine at high speed abated by a series of passages and chambers. Lined with roving fiberglass insulation and resonating chambers tuned to cause destructive interference. Where opposite sound waves cancel out each other.
An unavoidable side effect of the reduction of the sound is a restriction of the exhaust gas flow. This creates back pressure, Due to backpressure the efficiency of the engine decreases. This happens because the engine exhaust must share the same complex exit pathway. Built inside the muffler as the sound pressure that the muffler designed to mitigate.
A cutaway silencer showing the interior pipes and chambers which reduces horsepower.
Some aftermarket mufflers claim to increase the engine output. And reduce fuel consumption by reducing backpressure. This usually entails less noise reduction.

How Does A Muffler or Silencer Work?

If you heard before, a car engine running without a silencer. You know what a huge difference a silencer can make to the noise level. Inside a muffler, you’ll find a simple set of tubes with some holes in them.
Chambers and Tubes are actuall­y as tuned as a musical instrument. These are designed to reflect the sound waves reflected by the engine. In such a way that they cancel themselves out.
Within a silencer. Tubes with perforations sound waves through the inside of the silencer and out the end. Sound waves go through a central tube, hit the back wall, pass through a hole and enter the center chamber. Every aspect of the muffler/silencer designed to aid in canceling out noise.
Car silencers use some pretty neat technology to cancel out the noise. On this page, we’ll take a look inside a real car silencer and learn about the principles that make it work.
First thing, we need to know a little about sound.
Signs You Need A New Muffler
If you see sign of rust, you’ll hear, feel and smell a bad muffler before actually seeing one.
Noise – Nine times out of ten, a soundless muffler is a bad muffler. It seems much louder than in the past, so you need to replace it with a new one.
MPG – If your car silencer is looking sluggish and you notice a drop in fuel efficiency. Your silencer may be doing a poor job moving air through the exhaust.
Smell – If you notice stranger than usual smells from your silencer, don’t ignore it. Leakage can cause exhaust fumes to trapped inside which can be dangerous. So don’t let a smelly muffler go unattended.
Types Of Muffler or silencer

Types Of Mufflers or silencer

There are three types of car silencers. which are best for your car depending on your desired balance between noise and airflow.  Silencers that have high-performance silencers, add horsepower to the engine, and have a lot of airflows but also make the most noise. The stock silencer on your dad’s sedan may not offer performance but purrs like a kitten.
Glass Pack Mufflers – This is a straight-through design. That looks like a plain tube and simplest type of muffler available. A glass pack offers a good balance between noise and performance. And is not disturb your neighbors when you came home at night.
Chambered Mufflers – This is a common design. Most cars and uses several dampening chambers inside the silencer. To reduce noise as exhaust travels from chamber to chamber. These car silencers have a rectangular shape. You’re used to seeing when picturing the typical muffler or silencer.
Turbo Mufflers – Performance and, despite the name, doesn’t must even have a turbocharger under the hood. These mufflers use an s-shape inside the chamber to dampen some noise while maximizing performance.

How To Install A Muffler?

Most silencers do not must welding or complicated tools to install. But if you’re still unsure about these steps. An Advance Auto Parts Visit our website Bharat Industry and contact us.
  • Park on a level surface and engage the parking brake
  • Unhook the battery
  • You can spray with penetrating fluid to unscrew the clamps
  • Use a socket tool to unscrew and loosen the clamps
  • Replace the old muffler and slide the new one onto the exhaust pipeRe-attach the clamp to secure it in place you may need new clamps if the old ones are rusted.
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