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FUEL INJECTOR SYSTEM

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FUEL INJECTION SYSTEM (MECHANICAL)     new topic is  FI system (mechanical) The fuel injection system is the most vital component in the working of CI engines. The engine performance viz.  Power output economy etc. Is gently depends on the effectiveness of fuel injection system. The injection system has to perform the important duty of initiating and controlling the combustion process. In a fuel injection system the amount of fuel delivered into the air stream going to the engine is controlled by a pump which forces the fuel under pressure. When the fuel is injected into the combustion chamber towards the end of compression stroke, it is atomized into very fine droplets. These droplets vaporize due to heat transfer from the compressed air and form a fuel air mixture. Due to the continued heat transfer from hot air to the fuel the temperature reaches a value higher then its self ignition temperature. This causes the fuel to ignite spontaneously initiating th...

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