Diesel Engine
The diesel engine is the engine that is widely used on large and heavy laden kendarann. adapaun explanation of diesel engines is: a kind of internal combustion engines, more specifically, a trigger compression engines, where fuel is ignited by high temperature of gas being compressed, and not by other energy equipment (as spark plugs).
This machine was invented in 1892 by Rudolf Diesel, who received a patent on February 23, 1893. Want a diesel engine to be used with a variety of fuels including coal-dust. He present them at the World Exposition (World Fair) in 1900 using peanut oil (see biodiesel). Later revised and perfected by Charles F. Kettering.
How The Diesel Engine
1. When air is compressed its temperature increases (as stated by the Law of Charles), diesel engines use these properties for the combustion process. Air is drawn into the combustion chamber of diesel engine and compressed by the piston is closer, much higher than the compression ratio of gasoline engines.
2. Shortly 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 a high-pressure hot air.
3. The result of this mixing of light and burn quickly. Spraying fuel into the combustion chamber when the piston started to be approached (very near) the TMA in order 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 room that relate directly to the main combustion chamber where the piston is called an indirect injection (indirect injection).
4. This caused the gas explosion in a closed combustion chamber expands rapidly, pushing the piston down and generating power and linear. Connecting rod (connecting rod) to channel this movement to the crankshaft and the crankshaft had been converted into a linear power power play. Power play on the tip of the crankshaft axis used for various purposes.
To enhance the ability of diesel engines, are generally added components:
In extremely cold weather, diesel fuel thickens and increases in viscosity and form crystals or gel candles. This can affect the fuel system from tank to nozzle made ignition engines in cold weather is difficult. How common is used to heat the fuel filter and fuel lines electronically.
For electric generator applications, an important component of the diesel engine is the governor, which controls fuel supply to the engine revolution is always the desired rotation. If the engine rpm down too much power quality issued will be reduced so that electrical equipment can not work properly, whereas if the engine speed is too high then it could cause over voltage that can damage electrical equipment. Modern diesel engines use sophisticated electronic controls to reach 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 a sensor and engine speed using algorithms and search for the calibration tables stored in the ECM / ECU, he controls the amount of fuel and time through the electronic or hydraulic actuators to adjust the engine speed.
diesel engine type
There are two grades of diesel engines:
two-stroke and four-stroke.
many large diesel engine type two-stroke. Smaller engines usually use this type of four-stroke engine.
Usually the number of cylinders in multiples of two, although any number of cylinders can be used during the crankshaft can be balanced to prevent excessive vibration. Inline-six most widely-duty engines produced in the medium to heavy-duty, although the V8 and a straight-4 also produced.
Diesel engine works with compressed air are high enough, so on large diesel engines need to add some more air. So supercharger or turbocharger on the intake manifold, with the aim to meet the needs of compressed air
This machine was invented in 1892 by Rudolf Diesel, who received a patent on February 23, 1893. Want a diesel engine to be used with a variety of fuels including coal-dust. He present them at the World Exposition (World Fair) in 1900 using peanut oil (see biodiesel). Later revised and perfected by Charles F. Kettering.
How The Diesel Engine1. When air is compressed its temperature increases (as stated by the Law of Charles), diesel engines use these properties for the combustion process. Air is drawn into the combustion chamber of diesel engine and compressed by the piston is closer, much higher than the compression ratio of gasoline engines.
2. Shortly 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 a high-pressure hot air.
3. The result of this mixing of light and burn quickly. Spraying fuel into the combustion chamber when the piston started to be approached (very near) the TMA in order 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 room that relate directly to the main combustion chamber where the piston is called an indirect injection (indirect injection).
4. This caused the gas explosion in a closed combustion chamber expands rapidly, pushing the piston down and generating power and linear. Connecting rod (connecting rod) to channel this movement to the crankshaft and the crankshaft had been converted into a linear power power play. Power play on the tip of the crankshaft axis used for various purposes.
To enhance the ability of diesel engines, are generally added components:
- Turbocharger or supercharger to increase the volume of air entering the combustion chamber because the air entering the combustion chamber driven by a turbine on the turbo / supercharger.
- Inter cooler to cool the air that will enter the combustion chamber. Hot air will inflate the volume and vice versa, then the cooled air that aims to occupy more space can burn.
In extremely cold weather, diesel fuel thickens and increases in viscosity and form crystals or gel candles. This can affect the fuel system from tank to nozzle made ignition engines in cold weather is difficult. How common is used to heat the fuel filter and fuel lines electronically.
For electric generator applications, an important component of the diesel engine is the governor, which controls fuel supply to the engine revolution is always the desired rotation. If the engine rpm down too much power quality issued will be reduced so that electrical equipment can not work properly, whereas if the engine speed is too high then it could cause over voltage that can damage electrical equipment. Modern diesel engines use sophisticated electronic controls to reach 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 a sensor and engine speed using algorithms and search for the calibration tables stored in the ECM / ECU, he controls the amount of fuel and time through the electronic or hydraulic actuators to adjust the engine speed.
diesel engine type
There are two grades of diesel engines:
two-stroke and four-stroke.
many large diesel engine type two-stroke. Smaller engines usually use this type of four-stroke engine.
Usually the number of cylinders in multiples of two, although any number of cylinders can be used during the crankshaft can be balanced to prevent excessive vibration. Inline-six most widely-duty engines produced in the medium to heavy-duty, although the V8 and a straight-4 also produced.
Diesel engine works with compressed air are high enough, so on large diesel engines need to add some more air. So supercharger or turbocharger on the intake manifold, with the aim to meet the needs of compressed air
Comparative Advantage In Gasoline Engines
For the same power output, diesel engine size greater than gasoline engines because of the construction is needed in order to survive in a high pressure for combustion or ignition. With such big fans of the construction is relatively easy and inexpensive modification to increase power with the addition of a turbocharger without thinking too much about the resilience of the components of high takanan. Gasoline engines need a more careful calculation for the modification of increasing energy because in general the components in it are not able to withstand high pressures, and makes diesel engines for candidates with a low cost engine modifications.
Addition of a turbocharger or supercharger to the engine aims to increase the amount of air entering the combustion chamber so that at the time of compression will result in a high pressure and at the time of ignition or combustion will produce great power. Addition of a turbocharger or supercharger on a diesel engine is not a major effect on fuel consumption, because fuel injected directly into the combustion chamber when the combustion chamber in a state of highest compression in order to trigger ignition combustion process occurs. While the addition of a turbocharger or supercharger on the gasoline engine greatly affect fuel consumption because of air and fuel is mixed with an appropriate composition before entering the combustion chamber, both for gasoline engines with a carburetor system or injection system
Addition of a turbocharger or supercharger to the engine aims to increase the amount of air entering the combustion chamber so that at the time of compression will result in a high pressure and at the time of ignition or combustion will produce great power. Addition of a turbocharger or supercharger on a diesel engine is not a major effect on fuel consumption, because fuel injected directly into the combustion chamber when the combustion chamber in a state of highest compression in order to trigger ignition combustion process occurs. While the addition of a turbocharger or supercharger on the gasoline engine greatly affect fuel consumption because of air and fuel is mixed with an appropriate composition before entering the combustion chamber, both for gasoline engines with a carburetor system or injection system
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