Exhaust system

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Exhaust pipe of a car
An exhaust system is usually tubing used to guide waste exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes. Depending on the overall system design, the exhaust gas may flow through one or more of:
Cylinder head and exhaust manifold
A turbocharger to increase engine power.
A catalytic converter to reduce air pollution.
A muffler (North America) / silencer (Europe), to reduce noise.
Contents
1 Design criteria
1.1 Motorcycles
1.2 Trucks
1.3 Two-stroke engines
1.4 Ship's or large boat's onboard engine
1.5 Outboard motors
2 Terminology
2.1 Manifold or header
2.2 Header-back
2.3 Turbo-back
2.4 With or without catalytic converter
2.5 Cat-back
2.6 Tailpipe and tip
2.7 Lake pipes
3 See also
4 External links
//
Design criteria
An exhaust pipe must be carefully designed to carry toxic and/or noxious gases away from the users of the machine. Indoor generators and furnaces can quickly fill an enclosed space with carbon monoxide or other poisonous exhaust gases if they are not properly vented to the outdoors. Also, the gases from most types of machine are very hot; the pipe must be heat-resistant, and it must not pass through or near anything which can burn or can be damaged by heat. A chimney serves as an exhaust pipe in a stationary structure.
Motorcycles
In most motorcycles all or most of the exhaust system is visible and may be chrome plated as a display feature. Aftermarket exhausts may be made from steel, aluminium, titanium, carbon fibre or kevlar.
Motorcycle exhausts come in many different varieties depending on the type of engine and its intended use. A twin cylinder may flow its exhaust into separate exhaust sections, such as seen in the Kawasaki EX250 (also known as the Ninja 250 in the US or the GPX 250). Alternatively they may flow into a single exhaust section known as a two-into-one (2-1). Larger engines that come with 4 cylinders, such as Japanese supersport or superbikes (such the Kawasaki ZX series, Honda's CBR series, Yamaha's YZF series, also known as R6 and R1, and Suzuki's GSX-R series) often come with a twin exhaust system. A "full system" may be purchased as an aftermarket accessory, also called a 4-2-1 or 4-1, depending on its layout. In times past, these bike would come standard with a single exhaust, as seen on the Kawasaki ZX-6R 2000 and 2001 models. However, EU noise and pollution regulations have generally stopped this practice, forcing companies to use other methods to increase performance of the motorcycle. This has often lead to a decrease in fuel economy (because of increased weight of the exhaust system and manufacturers forcing more fuel into the engine to gain extra power, even though the exhaust emissions are cleaner.
Trucks
In many trucks / lorries all or most of the exhaust system is visible. Often in such trucks the silencer is surrounded by a perforated metal sheath to avoid people getting burnt touching the hot silencer. This sheath may be chrome plated as a display feature. Part of the pipe between the engine and the silencer is often flexible metal industrial ducting, as in the image in the section "Terminology". Sometimes a large diesel exhaust pipe is vertical, to blow the hot noxious gas well away from people; in such cases the end of the exhaust pipe often has a hinged metal flap to stop debris and birds and rainwater from falling inside. Sometimes this exhaust pipes have some flex connector attached with it. This helps in minimising the vibration from the engine to be transferred into the exhaust system.
Two-stroke engines
In a two-stroke engine, such as that used on dirt bikes, a bulge in the exhaust pipe known as an expansion chamber uses the pressure of the exhaust to create a pump that squeezes more air and fuel into the cylinder during the intake stroke. This provides greater power and fuel efficiency. See Kadenacy effect.
Ship's or large boat's onboard engine
With a ship's or large boat's onboard below-decks diesel engine:-
Lagging the exhaust pipe stops it from overheating the engine room where people must work to service the engine.
Feeding water into the exhaust pipe cools the exhaust gas and thus lessens the back-pressure at the engine's cylinders' exhaust ports and thus helps the cylinders to empty quicker.
Outboard motors
In outboard motors the exhaust system is usually a vertical passage through the engine structure and to reduce out-of-water noise blows out underwater, sometimes through the middle of the propeller.
Terminology

Large truck's diesel exhaust pipe
Manifold or header
In most production engines, the...(and so on) To get More information , you can visit some products about titanium spring wire, including titanium bars, . The 18/8 Stainless Steel Cutlery products should be show more here!