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Engine contrast Matt Ingles English 100 13 February 2006 Engine Contrast The engines in most cars today use what is called a four-stroke combustion cycle to convert
and remembering the strengths and advantages of each engine for particular information. For my assignment, I have chosen to compare and contrast three popular search
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of cars so that they will always know how to fix that flat tire or change engine fluids. In complete contrast is the other family, consisted of two "adults" and their
at the same time, and the transmission then turns the wheels. By contrast, in a series hybrid, the gasoline engine turns a generator, and the generator can either
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Matt
Ingles
English 100
13 February 2006
Engine Contrast
The engines in most cars today use what is called a four-stroke combustion cycle to convert gasoline into motion. The four-stroke combustion cycle was invented in 1867 by a man named Nikolaus Otto. In the end of the 19th century, gasoline engines were not very efficient. A man named Rudolf Diesel set out to develop an engine with a high efficiency. Rudolf Diesel came up with the idea of the diesel engine, and in 1892 he patented his idea in Germany. Diesel engines also use the four-stroke combustion cycle. Gasoline engines and diesel engines differ in several ways such as efficiency, the fuel systems and how they function.
One difference between gasoline engines and diesel engines is the efficiency. Gasoline engines tend to be made from relatively light weight parts which mean they tend to wear out faster or break easier. In order to produce more horsepower, gasoline engines have to turn higher RPM (revolutions per minute). Higher RPMs mean parts tend to wear out faster. Since gasoline engines have fuel mixed with the air in the cylinder, they will only have a compression ratio from between 8:1 to 12:1. If the compression ratio gets too high, the engine gets an uncontrolled combustion, otherwise known as preignition. Diesel engines, on the other hand, tend to be made from heavy parts that do not wear out as fast. Diesel engines also turn a lower RPM to produce horsepower. Most diesel engines operate at a compression ratio from between 14:1 to 25:1. Diesel engines can operate at such a high ratio because they only compress air.
Another difference between gasoline engines and diesel engines is the fuel systems. Gasoline engines generally use either a carburetor or port fuel injection. With a carburetor, the air and gasoline are mixed long before they enter the cylinder. In a port fuel injected engine, the right amount of fuel is...
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