FOURSTROKE DIESEL ENGINE
The fourstroke diesel engine works as here in.When the piston is moving upward and is close to TDC,the inlet valve is opened.As the piston moves downward vacuum is created in the cylinder.Air is alone sucked in.The piston after reaching BDC begins to rise.At this point the inlet valve is closed,and the exhaust valve is already in the closed positions.Now the piston moves upward and compresses the air to a great extent compared to that in a petrol engine.Due to compression,temperature and pressure of air increase.At the end of the compression stroke,Fuel is into the hot compressed air,in the form of fine spray.The heat of compression in the air ignites the injected fuel.Combustion takes place.High pressure thus develeped forces the piston to move downward.The piston is connected to crankshaft by the connecting rod.As such the crank shaft is rotated .After the powerstroke,piston rises up.Now the piston pushes combustion products out of the cylinder.As the piston approaches close to TDC intake valve is opened.Atmospheric air begins to enter the cylinder.The cycle of operations g
ets repeated again and again and the engine continues to work.
To watch the working of fourstroke dieselengine-click here
The fourstroke diesel engine works as here in.When the piston is moving upward and is close to TDC,the inlet valve is opened.As the piston moves downward vacuum is created in the cylinder.Air is alone sucked in.The piston after reaching BDC begins to rise.At this point the inlet valve is closed,and the exhaust valve is already in the closed positions.Now the piston moves upward and compresses the air to a great extent compared to that in a petrol engine.Due to compression,temperature and pressure of air increase.At the end of the compression stroke,Fuel is into the hot compressed air,in the form of fine spray.The heat of compression in the air ignites the injected fuel.Combustion takes place.High pressure thus develeped forces the piston to move downward.The piston is connected to crankshaft by the connecting rod.As such the crank shaft is rotated .After the powerstroke,piston rises up.Now the piston pushes combustion products out of the cylinder.As the piston approaches close to TDC intake valve is opened.Atmospheric air begins to enter the cylinder.The cycle of operations gTo watch the working of fourstroke dieselengine-click here
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