When air is compressed its temperature will rise (as stated by the Law of Charles), diesel engines use these properties for the combustion process. The air sucked into the combustion chamber diesel engine and compressed by the piston is closer, much higher compression ratio than gasoline engines. Some time before the piston at top dead point position (TMA) or BTDC (Before Top Dead Center), diesel fuel is injected into the combustion chamber at high pressure through a nozzle that mixes with the hot high-pressure air. The results of this mixing of light and burn quickly. Spraying fuel into the combustion chamber when the piston approaches underway (very near) TDC to avoid detonation. Spraying fuel directly into the combustion chamber above the piston is called direct injection (direct injection) while spraying fuel into a special chamber that relate directly to the main combustion chamber where the piston is called an indirect injection (indirect injection).
This causes the gas explosion in a closed combustion chamber expands rapidly, pushing the piston down and produces a linear force. Connecting rod (connecting rod) to channel the movement into the crankshaft and the crankshaft had been converted into a linear force torque. Torque on the shaft end of the crankshaft used for various purposes.
This causes the gas explosion in a closed combustion chamber expands rapidly, pushing the piston down and produces a linear force. Connecting rod (connecting rod) to channel the movement into the crankshaft and the crankshaft had been converted into a linear force torque. Torque on the shaft end of the crankshaft used for various purposes.
.To enhance the ability of diesel engines, are generally added component:.Turbocharger or supercharger to increase the volume of air entering the combustion chamber because of the air entering the combustion chamber driven by a turbine on the turbo / supercharger.
. Intercooler to cool the air that will enter the combustion chamber. Hot air will expand in volume and vice versa, then the air cooled aims to occupy the combustion chamber can be more.
Diesel engines is difficult to live on when the engine in cold conditions. Some machines use a small electronic heater plugs are called on (spark / glow plug) in the cylinder to heat the combustion chamber before ignition. Others use heaters "resistive grid" in "intake manifold" to warm the inlet air until the engine reaches operating temperature. Once the engine operates fuel combustion in the cylinder with an effective heat engine.
In very cold weather, diesel fuel thickens and increases the viscosity and forms wax crystals or a gel. This can affect the fuel system from tank to the nozzle, making ignition engine in cold weather becomes difficult. Commonly used way is to heat the fuel filter and fuel lines electronically.
For electric generator applications, an important component of the diesel engine is governor, which controls the fuel supply to engine speed is always at the desired rotation. If the engine speed drops too much power quality issued will be reduced so that electrical equipment may not work as they should, whereas if the engine speed is too high it can lead to over voltage could damage electrical equipment. Modern diesel engines use advanced electronic controls to achieve this goal through an electronic control module (ECM) or electronic control unit (ECU) - which is a "computer" in the machine. ECM / ECU receives signals through the engine speed sensor and uses search algorithms and calibration tables are stored in the ECM / ECU, he controls the amount of fuel and time through electronic or hydraulic actuators to adjust the engine speed.
Diesel engines is difficult to live on when the engine in cold conditions. Some machines use a small electronic heater plugs are called on (spark / glow plug) in the cylinder to heat the combustion chamber before ignition. Others use heaters "resistive grid" in "intake manifold" to warm the inlet air until the engine reaches operating temperature. Once the engine operates fuel combustion in the cylinder with an effective heat engine.
In very cold weather, diesel fuel thickens and increases the viscosity and forms wax crystals or a gel. This can affect the fuel system from tank to the nozzle, making ignition engine in cold weather becomes difficult. Commonly used way is to heat the fuel filter and fuel lines electronically.
For electric generator applications, an important component of the diesel engine is governor, which controls the fuel supply to engine speed is always at the desired rotation. If the engine speed drops too much power quality issued will be reduced so that electrical equipment may not work as they should, whereas if the engine speed is too high it can lead to over voltage could damage electrical equipment. Modern diesel engines use advanced electronic controls to achieve this goal through an electronic control module (ECM) or electronic control unit (ECU) - which is a "computer" in the machine. ECM / ECU receives signals through the engine speed sensor and uses search algorithms and calibration tables are stored in the ECM / ECU, he controls the amount of fuel and time through electronic or hydraulic actuators to adjust the engine speed.
Type diesel engine
There are two classes of diesel engines: two-stroke and four-stroke.
Usually the number of cylinders in multiples of two, although any number of cylinders can be used for the crankshaft can be balanced to prevent excessive vibration. 6 engine line is produced in most medium-duty engines for heavy-duty, although the V8 and 4-line is also widely produced.
Diesel engine works with compressed air that is high enough, so that in large diesel engines need to add some more air. Supercharger or turbocharger is used on the intake manifold, with the aim of meeting the needs of compressed air.
Advantages and disadvantages compared with the engine spark anger
For the same power output, the size of the larger diesel engines than gasoline engines because of the construction is necessary in order to survive in a high pressure for combustion or ignition. With the construction of the fan is relatively easy and inexpensive modifications to increase power with the addition of a turbocharger without much thought to the resistance component takanan high. Gasoline engines need a more accurate calculation for the modification of an increase in power because in general the components in it are not able to withstand high pressure, and makes diesel engines for candidates with a low cost engine modifications.
The addition of a turbocharger or supercharger to the engine aimed at increasing the amount of air entering the combustion chamber is thus at the time of compression will result in a high pressure and at the time of ignition or combustion will generate a large force. The addition of a turbocharger or supercharger on a diesel engine is not a major effect on fuel because the fuel is injected directly into the combustion chamber during the combustion chamber in a state of highest compression ignition to ignite the combustion process to occur. While the addition of a turbocharger or supercharger on the engine gasoline greatly affects fuel consumption due to air and fuel mixed with the right composition before entering the combustion chamber, for both the gasoline engine with a carburetor system or injection system.
Usually the number of cylinders in multiples of two, although any number of cylinders can be used for the crankshaft can be balanced to prevent excessive vibration. 6 engine line is produced in most medium-duty engines for heavy-duty, although the V8 and 4-line is also widely produced.
Diesel engine works with compressed air that is high enough, so that in large diesel engines need to add some more air. Supercharger or turbocharger is used on the intake manifold, with the aim of meeting the needs of compressed air.
Advantages and disadvantages compared with the engine spark anger
For the same power output, the size of the larger diesel engines than gasoline engines because of the construction is necessary in order to survive in a high pressure for combustion or ignition. With the construction of the fan is relatively easy and inexpensive modifications to increase power with the addition of a turbocharger without much thought to the resistance component takanan high. Gasoline engines need a more accurate calculation for the modification of an increase in power because in general the components in it are not able to withstand high pressure, and makes diesel engines for candidates with a low cost engine modifications.
The addition of a turbocharger or supercharger to the engine aimed at increasing the amount of air entering the combustion chamber is thus at the time of compression will result in a high pressure and at the time of ignition or combustion will generate a large force. The addition of a turbocharger or supercharger on a diesel engine is not a major effect on fuel because the fuel is injected directly into the combustion chamber during the combustion chamber in a state of highest compression ignition to ignite the combustion process to occur. While the addition of a turbocharger or supercharger on the engine gasoline greatly affects fuel consumption due to air and fuel mixed with the right composition before entering the combustion chamber, for both the gasoline engine with a carburetor system or injection system.
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