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Engines 2 - Example Papers

Engines 2


Engines are found all around our very day lives. They are found in our cars, trucks, vans and motorcycles. Almost all vehicles run on the basic combustion engine. An internal- combustion engine is any type of machine that gets mechanical energy from the expenditure of the chemical energy of fuel burned in a combustion chamber. There are four main types of internal- combustion engines, they are: the Otto - cycle engine, the diesel engine, the rotary engine and the gas turbine. The Otto-cycle engine is usually used in gasoline engines found in cars and airplanes. The diesel engine runs on a different principle and mainly uses oil as fuel. It is used in electric-generating and ...

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that was made from the steam made the piston rise fitting in the cylinder, and after it was raised the heat was removed from the bottom of the cylinder. As the cylinder cooled, the steam condensed and the air pressure on the top of the piston pushed the piston down.
The main parts of an Otto-cycle engine and a diesel engine are the same. Their combustion chamber has cylinders that are closed at one end and in which a close-fitting piston slides. The outside of the piston is connected to a crankshaft by a connecting rod. The crankshaft changes the motion of the pistons in a rotary motion. Crankshafts have heavy flywheels and counterweights hooked on to them to keep the motion of the shaft smooth. An engine can have from 1 cylinder to 28 cylinders.
In every engine there is some sort of fuel system. If not the engine wouldn't run. Vehicles have a gas tank, a fuel pump and a carburetor. Newer cars have a fuel injection system. In most engines with a carburetor, the fuel ...

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PAPER DETAILS
Added: 7/3/2008 02:41:45 AM
Category: Miscellaneous
Type: Premium Paper
Words: 851
Pages: 4

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