Internal Combustion Engine

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The attractiveness of CNG as a clean, cost effective and stable source of fuel for vehicles is not only being embraced in Trinidad and Tobago, but across the globe as well. Progressive companies have embraced CNG as a fuel, which reduces their operating cost and is in harmony with worldwide efforts to reduce carbon emissions. CNG runs at almost one third to half the cost of gasoline/diesel based on an Energy-Equivalent measure. Furthermore, natural gas combustion delivers twenty percent (20%) lower carbon emissions and about twenty five percent (25%) reduction in greenhouse gases. (http://www.popularmechanics.com/cars/how-to/a7487/should-you-convert-your-car-to-natural-gas/)
Before the introduction of Compressed Natural Gas (CNG) as a fuel, and CNG engines, there were steam and coal engines, which then evolved into today’s Gasoline and Diesel Engines and Fuels. The Diesel engine was invented (1892) and patented (1898) by Rudolf Diesel under Publication number US608845 A and entitled “Internal Combustion Engine” (https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US608845.pdf) . However this invention begins with the invention of the gasoline engine by Nikolaus August Otto, patented in 1876. The gasoline engine operates on the Otto Cycle principle, which is commonly known today as the four stroke cycle, and is the basic premise for most care engines. Despite this being an improvement over the present steam and coal engines of the time, the gasoline engine wasn’t very efficient. On average, roughly ten percent (10%) of the fuel used in the engine, actually moved the vehicle. The remaining fuel simply generated useless heat.
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As a result, there have been attempts at reducing the cons by mean of improving the Diesel engine and Diesel
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