All Things Need To Move Whether Humans Or Machines Essay, Research Paper

All humans and machines need to move. They need something to make them move like an engine.

For humans, the engine for humans is the heart. The heart connects to other parts of the body to

animate it. The engine in machines connects to other parts of the car, motorcycle, washing machine

to make it move.

There are many different kinds of engines. There are steam engines, turbine engines, and internal

combustion engines. It takes different fuels to make each engine work. The steam engine uses steam.

The turbine engine uses water, and the internal combustion engine uses gasoline. Besides fuel, like the

heart, all engines need air, compression, and a spark. Without any of these, the heart or engine will not

work.

The internal combustion engine is worth examining and looking under the hood to see just what

goes into making your car work. This type of engine has made transportation as we know it today

possible. One of the most important things to know is what is a combustion engine? An ?Internal-

Combustion Engine is any type of machine that obtains mechanical energy directly from the

expenditure of the chemical energy of fuel burned in a combustion chamber that is integral part of the

engine?.1

In the past, there have been many types of internal combustion engines. One of the most important

was named after it?s inventor a German technician, named Nikolaus August Otto. Thus this engine was

called Otto cycle engine, which ran on gas. Another type is the diesel engine, named after Rudolf

Christian Karl Diesel, which operates on oil, and is used for trucks and airplanes. Another type is the

rotary engine, which is used for lawnmowers and some tractors. There is also the gas turbine

engine. Cars over the years have really changed from four cylinder to 10 cylinders. . In different

cars, the location of the engine changed from front to back. This change in location was not by

accident. Some cars balance differently, which means that some cars do better with their engines in the

back rather than in the front.

The purpose of all of these engines is to make the machine move. When a car starts it needs to get

over inertia so that it can move without stopping. In a manual car, the clutch needs to engaged, then,

then, he needs to turn the key, put the car in first, put his foot on the gas, and rev up to get past the

inertia. In an automatic, when the driver puts the key in, puts the car in drive, and then goes, which gets

the car past the intertia.

Every time you turn on your car, there are explosions in the engine. The pistons go up and over

and make space for the explosions. It?s like a bicycle. Every turning motion makes the bike or car go

forward of backwards. The more rpm (revolutions per minute that the pistons turn), the faster the car

goes. If there is less rpms, the car goes slower. ? Unlike steam engines and turbines , internal

combustion engines develop no torque when starting, and therefore provision must be made for turning

the crankshaft so that the cycle of operation can begin.

So how does a engine work? ?The motion of the piston during this stroke sucks a quantity of fuel and

air mixture into the combustion chamber. During the next stroke, the piston moves towards the cylinder

head and compresses the fuel mixture in the combustion chamber . At the moment when the piston

reaches the end of stroke and the volume of the combustion chamber is at a minimum, the fuel mixture

is ignited by the spark plug and burns. Expanding and exerting a pressue on the piston, which is having

is then driven away from the cylinder head in the third stroke. during the final stroke ,the exhaust vale

is opened and the piston moves towards the cylinder head ,driving the exhaust gases out of the out the

combustion chamber and leaving the cylinder ready to repeat the cycle.?

1 Encarta Internal combustion engine, page 1

2 Encarta, Internal combustion engine., page 4