Engineer World

Fuel-Injection System is vital to the working and performance of CI engine  This system serves the purpose of initiating and controlling the combustion to meet the demand requirements  Fuel is injected into combustion chamber towards the end of compression.  It is atomized as it enters under high velocity and the droplets get vaporized to form a fuel-air mixture. Functional Requirements of an Injection System:  The following requirements must be met by the Fuel Injection (FI) System:  Accurate metering of fuel injected per cycle to meet changing demand of speed & load. Precise timing of fuel injection in the cycle to ensure performance; power, fuel economy, emissions. Proper control of rate of injection to achieve desired heat release during combustion without knocking.  Proper atomization of fuel into fine droplets  Proper spray pattern to ensure rapid mixing of fuel & air  Uniform distribution of fuel droplets throughout t...

          Clutch is a mechanical device that facilitates transmission of power and motion from one component (the driving member) to another (the driven member) when engaged, with a provision for disengagement whenever required. Function of Clutch: It can be disengaged. This allows engine cranking and permits the engine to run without delivering power to the transmission.  While disengaging, it permits the driver to shift the transmission into various gear according to operating condition.  While engaging, the clutch slips momentarily. this provides smooth engagement and lessens the shock on gears, shaft and other parts of automobile.  While engaging, the clutch transmits the power to the wheel without slipping, in ideal condition. Main Parts of Clutch: These are known as the principle parts of the clutch. • Driving Member  • Driven Member  • Operating Member Driving Member: Driving member has a flywheel which is mounted on...