History of Diesel Engines

The diesel engine is a type of internal combustion engine;, more specifically, a trigger compression engine, where fuel is ignited by the high temperature of the compressed gas, and not by other energy tools (like spark plugs). This machine was found in 1892 by Rudolf Diesel, who received a patent on February 23, 1893. Diesel wants a machine to be used with a wide variety of fuels including coal dust. He show it on the Exposition Universelle (World's Fair) in 1900 using peanut oil. Subsequently improved and perfected by Charles F. Kettering.

PRINCIPLES OF DIESEL ENGINE

When a gas is compressed, its temperature increases (as stated by Charles Law; diesel engine uses this property to ignite the fuel. Sucked air into the cylinder diesel engine and compressed by the piston to move up, much higher than the compression ratio of a spark-ignition engine. Upon hit the top of the piston, diesel fuel is pumped into the combustion chamber under high pressure, through the atomising nozzle, mixed with high-pressure hot air. Results mixing ignite and burn quickly.

This leads to a closed gas explosion in the combustion chamber above expands, pushing the piston down with great force and generating force in the vertical direction. This channel connecting rod to the crankshaft motion is forced to rotate, deliver power at the discharge end of the crankshaft rotates.

Scavenging (pushing the charge-burned gases out of the cylinder, and pull air into the ocean) engine implemented by ports or valves. (See direct injection vs indirect injection type fuel injection for). To realize the ability of diesel engines, the use of a turbocharger to compress the incoming air being sucked badly needed; intercooler to cool the air being sucked in after compression by the turbocharger increases efficiency.

Important components of the diesel engine was governor, which limits engine speed control fuel delivery. Engine that uses advanced electronic controls to achieve this through the electronic control module (ECM) or electronic control unit (ECU) - which is the "computer" in the machine. ECM / ECU receives engine speed signals through sensors and algorithms and search using the calibration tables 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 can not operate at the time of the cold cylinder. Some engines use a small electronic heater called a spark plug in the cylinder lit to heat the cylinder before ignition. Others use heaters "resistive grid" in the "intake manifold" to warm the incoming air until the engine reaches operating temperature. Once the machine operates fuel combustion in the cylinder to effectively heat up the engine.

In extremely cold weather, diesel fuel thickens and increases the viscosity and form wax crystals or a gel. This can complicate the fuel pump to deliver fuel into the cylinder in an effective, making ignition engine in cold weather becomes difficult, despite the increase in diesel fuel bahn has made it difficult to be very rare. Common way is used to heat the fuel filter and fuel lines electronically.

DIESEL ENGINE CONFIGURATION

There are two classes of diesel engines: two-stroke and four-stroke. many large diesel engines to operate in a two-stroke cycle. Smaller engines usually use a four-stroke cycle.

Usually a collection of cylinders are used in multiples of two, although any number of cylinders can be used for starting the charge-balance the crankshaft in order to prevent excessive vibration. Inline-6, the most widely produced in the medium-duty engines for heavy-duty, although the V8 and straight-4 are also widely produced.

EXCESS & LACK OF DIESEL ENGINES

Diesel engines greater than a gasoline engine with the same power as heavy construction required to withstand the high combustion pressures for ignition. And was also made with the same quality that makes fans get great power using turbocharged engines through modifications relatively easy and inexpensive. Petrol engine of the same size can not put out a comparable power for the components in it are not able to withstand high pressure, and makes diesel engines candidate for engine modifications at low cost.

Only drawback is the noisy sound is also on the weight and dimensions and great 2x heavier dr gasoline engine, diesel engine components due to the strong to bear in the design of high compression, as well as the slow acceleration, but can be improved through the addition of ato Turbo Supercharger The addition of a turbocharger or supercharger to the engine improves fuel economy and power. High compression ratio makes diesel engines more efficient than gasoline engines use. Improved fuel economy also means that diesel engines produce less carbon dioxide.