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Automobile Exhaust System Articles
How Important Are Heat Shields For Automobile Exhaust System ...
Heat shields, form a basic part of automobile exhaust system whose function is to discharge burned gases or steam off the vehicle so that they ...

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 Automobile Exhaust System    Industry
Automobile Exhaust System Industry
The size of the worldwide automotive exhaust system industry is around US $4.7 billion which is forecasted to reach US $ 6.5 billions by the end of year 2010 and US $ 8 billions in 2015. France, China, Taiwan, Brazil, and Hungary are the leading exporters of automobile exhaust system components and parts.

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Automotive Components & Parts  »  Automotive Industry Directory  »  Automobile Exhaust System

Automobile Exhaust System
Automobile Exhaust System Automobile Exhaust System
Automobile Exhaust System
An automobile exhaust system comprises of various devices or parts of an automotive engine, which are used for discharging burned gases or steam. Exhaust systems consists of tubing, which are usually used for emitting out waste exhaust gases with the help of a controlled combustion taking place inside an automobile engine. All the burnt gases are exhaled from an engine using one or more exhaust pipes. These gases are expelled out through several devices like cylinder head, exhaust manifold, turbocharger, catalytic converter, muffler and silencer.

The diagram illustrated below explains the working of all the key components of an exhaust system used in automobile. The major components used in a typical automobile exhaust system are exhaust manifold, resonator, catalytic converter, exhaust pipe, muffler, tail pipe, ‘Y’ pipe, ball flanges. All of these components are especially designed for providing suitable and effective exhaust flow, silencing, and emission levels.

Automobile Exhaust System

Components of Automobile Exhaust System  

Exhaust Pipes Catalytic Converters Exhaust Manifold Gaskets
Exhaust Clamps and Brackets Exhaust Flange Heat Protection Products
Headers Air Components

Exhaust Pipes are explicitly engineered to carry or transmit various toxic and noxious gases away from the users of the machine. Usually, exhaust gases are very hot, that is why exhaust pipes must be durable and heat resistant so that it does not get spoiled by heat. These double walled pipes are manufactured using different types of metals namely aluminized steel, stainless steel or zinc plated heavy-gauge steel. The exhaust pipes joins exhaust manifold, muffler and catalytic converters together.
Different categories of exhaust pipes include:

Exhaust Pipes
Catalytic Converters

Catalytic Converters
Catalytic Converters are the devices used for converting toxic and harmful hydrocarbons, carbon monoxide, and nitrogen oxides into harmless compounds. Converters transform hydrocarbons and carbon monoxide into carbon dioxide and water while separate nitrogen oxide into nitrogen and oxygen respectively. Catalytic converter is positioned underneath the passenger seat in most of the vehicles. Apart from automobiles, catalytic converters are widely used in manufacturing mining device, trucks, buses, trains, generator sets, forklifts and other different types of engine equipped machine. The converter make use of various catalysts like platinum, palladium, and rhodium coated on a ceramic honeycomb structure which turns the dangerous gases into non toxic gases.
Catalytic Converters can be broadly categorized on the basis of chemical reactions taking place inside the engine as:
Two-way catalytic converter In this type of converter, process of oxidation of carbon monoxide and hydrocarbons takes place simultaneously.

Three-way catalytic converter Under this a three way process i.e. reduction of nitrogen oxides, oxidation of unburnt carcinogenic hydrocarbons and oxidation of hydrocarbons takes place inside the engine.

Exhaust Manifold Gaskets consists of strong network of pipes that are used for collecting gases from cylinders and passes them directly to the exhaust pipe. Manifold gaskets are mostly made of cast or nodular iron, embossed steel, high temperature fiber material, graphite and other ceramic composites. The main function of exhaust manifold gasket is to seal the connection between the manifold and cylinder head. The design of exhaust gasket usually depends on the type of engine used and number of cylinders it has. It helps to prevent the leakage and allows exhaust gas to flow through catalytic converter easily and comfortably.

Exhaust Manifold Gaskets
Exhaust Clamps and Brackets
Exhaust clamps are the components used for providing a strong connection between various pipe sections and other engine components. Mostly, steel is used for manufacturing exhaust clamps. It comes in wide array of sizes and can accommodate different sizes of exhaust pipes and connections. Exhaust brackets are a type of fastener generally made of steel and is used for providing support to different components used in an automobile exhaust system.
Various types of exhaust clamps and brackets are:

Exhaust Flange is a type of projecting rim used for attaching, joining or fastening tightly various exhaust pipes with the help of nuts and bolts. These flanges are mostly made of stainless steel, iron, aluminum, steel, carbon steel, alloy steel, and hardened steel.

Exhaust Flange

Heat Protection Products
Heat Protection Products includes wide variety of products like heat shields, heat sleeving, heat tape which are used for protecting and guarding various exhaust system components against the unwanted external heat source.
The different types of heat protection products are:
Other types of heat protection products used in automobiles include:

Headers is a modified or a fine tuned version of a conventional exhaust system in which gases are expelled out directly from an automobile engine. Headers can be made of stainless steel, aluminum, steel, carbon steel, alloy steel, iron, brass and hardened steel.


Air Components
Air Components includes variety of devices or equipment like air hoses, air tubes which are used for carrying air under pressure to different destinations.
Different kinds of auto air components include:

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