four 4 stroke diesel engine principle working animation hd
4 stroke diesel engine or compression ignition engine or constant pressure cycle engine is meant for heavy duty application, like heavy motor vehicles , stationary power plants, ships and big industrial units, Train locomotive, tractors and bus application.
working of the four stroke diesel engine
1- suction stroke: the inlet valve opens during this stroke and only air is sucked into the engine cylinder. The exhaust-valve remains closed. When the piston reaches BDC, the suction stroke is completed
2- compression stroke : During this stroke the piston moves from BDC to TDC. Both the valves remains closed. The upward movement of piston compresses the air to a high pressure, Bout 40 to 45 bar and temperature increases to about 650 degree celcius which is sufficient to ignite the fuel i.e.Diesel. At the end of compression stroke, a fine spray of diesel is injected into the hot air. This ignites the fuel instantaneously. Injection of fuel takes place at constant pressure.
3- power stroke- During this stroke, both the valves remains closed. Due to increased pressure of the products of combustion, the piston is pushed down with a large force. Expansion of the gases take place and work is done during this stroke. The power stroke is completed as the piston reaches BDC.
4- Exhaust stroke - During this stroke, the exhaust valve opens and inlet remains closed. The piston moves from BDC to TDC, pushing the burnt gases out from the engine cylinder. The exhaust stroke is completed as the piston reaches T.D.C position.
.
four 4 stroke diesel engine principle working animation hd
4 stroke diesel engine or compression ignition engine or constant pressure cycle engine is meant for heavy duty application, like heavy motor vehicles , stationary power plants, ships and big industrial units, Train locomotive, tractors and bus application.
working of the four stroke diesel engine
1- suction stroke: the inlet valve opens during this stroke and only air is sucked into the engine cylinder. The exhaust-valve remains closed. When the piston reaches BDC, the suction stroke is completed
2- compression stroke : During this stroke the piston moves from BDC to TDC. Both the valves remains closed. The upward movement of piston compresses the air to a high pressure, Bout 40 to 45 bar and temperature increases to about 650 degree celcius which is sufficient to ignite the fuel i.e.Diesel. At the end of compression stroke, a fine spray of diesel is injected into the hot air. This ignites the fuel instantaneously. Injection of fuel takes place at constant pressure.
3- power stroke- During this stroke, both the valves remains closed. Due to increased pressure of the products of combustion, the piston is pushed down with a large force. Expansion of the gases take place and work is done during this stroke. The power stroke is completed as the piston reaches BDC.
4- Exhaust stroke - During this stroke, the exhaust valve opens and inlet remains closed. The piston moves from BDC to TDC, pushing the burnt gases out from the engine cylinder. The exhaust stroke is completed as the piston reaches T.D.C position.
.
No comments:
Post a Comment