Gasoline Engine

The invention of the gasoline engine represents a landmark in the history of mankind. The gasoline engine was the first attempt to make use of the liquid fuel for transportation. The internal combustion engine was not the first engine to be invented. Steam engines had become very popular before the first IC engine was invented. However, it had been conclusively proved that steam and coal engines were not suitable for personal transportation. A steam engine was good enough to carry hundreds of passengers at once. However, it could not be fitted into a vehicle to carry just one or two individuals.

Gasoline engine history was made when the Otto cycle was perfected. The four stroke engine involves
 - inflow of air and fuel during the first stroke
 - compression of the air fuel mixture in the second stroke
 - combustion of the mixture in the third stroke
 - removal of exhaust from the engine in the fourth stroke.

Other types of gasoline engines like the Wenkel rotary engine caught the fancy of car manufacturers for a short period of time. However, nothing came close to overtaking the standard gasoline internal combustion engine. Over the years, modifications to the gasoline engine have increased. However, the basic design continues to remain the same. Gasoline engine parts consist of cylinders, pistons, crankshaft and camshaft that the work in tandem with valves and connecting rods to transmit the torque generated by the engine to the transmission.

The earliest cylinders were made of iron. Today, cast iron and aluminum is preferred to make the engine block. Aluminum is preferred for pistons because of its ability to withstand heat. The process of engine manufacturing has changed beyond recognition. However, this is only because of the changes that have taken placed in the past two or three decades. It was only when electronics became popular did the gasoline engine manufacturers make basic changes to the design. The carburetor was replaced by fuel injection system. The fuel injection system was mated to its electronic control which in turn was converted into a computerized chip.

The quality of gasoline used has changed with additives and detergents cleansing the engine even as the fuel is burnt. The quality of oil has changed. The first gasoline engine made a lot of noise and consumed gallons of oil just to push the automobile a few kilometers. Today, makers are fitting super powerful and compact engines that offer unimaginably high mileage as compared to the early versions.

The process of improvement has not have come to an end. Gasoline engines cause more pollution as compared to all other types of engines. Further, it is universally acknowledged as the truth that diesel engines generate more power and work more efficiently as compared to these engines. However, a lot of time has been spent in overcoming the flaws of the diesel engine. This is often cited as the reason why gasoline engines have become more popular despite not being the best option available.