Diesel Engine

A diesel engine is an internal combustion engine that utilizes the heat of compression to start ignition for burning the fuel. During the final phase of compression, fuel gets injected in the combustion chamber. This is exactly opposite to a gas engine or petrol engine, in which, the Otto cycle is utilized. In this cycle air-fuel mixture is ignited by means of a spark plug. Diesel engine operates by making use of the diesel cycle. It is named after the inventor Rudolf Diesel. Owing to their compression ratio, diesel engine has the highest thermal efficiency of any external or internal combustion engine. The thermal efficiency of low-speed diesel engine goes beyond 50%.

Diesel engines are produced in four stroke and two stroke versions. In the beginning they were utilized as a more competent substitute for stationary steam engines. In the year 1910, they were used in ships and submarines. After this, they were used in large trucks, electric generating plants and locomotives. In the 1930, slow initiation was taken to use them in few automobiles. Till the 1970s, there was great increase in the utilization of diesel engines in off-road vehicles and larger on-road vehicles. Since 2007, almost 50% of new sold cars in Europe were diesel.

Rudolf Diesel proposed his engine for replacing the steam engine as the preliminary power resource of industry. Since early 20th centuries diesel engines utilized the similar basic form and layout as industrial steam engines. the layout was containing external valve gear, long-bore cylinders, open crankshaft and cross-head bearings linked to a large flywheel.

Larger and medium sized industrial engines were manufactured with horizontal cylinders just like steam engines while small engines were making use of vertical cylinders. Early engines were running at very slow speeds.In diesel engines the heat of compressed air is used to ignite their fuel. If the engine is cold, compression alone is not able to produce sufficient heat to burn the fuel. Therefore most truck and car diesel engines use glow plugs. They are nothing but the electric elements which heat up the cylinder prior to starting a cold engine.

A diesel engine is also called as compression ignition engine. There is no need of spark plugs in diesel engine. This is because the air is so hot and compressed at the top of the stroke that the fuel injected gets ignited at the same moment it is injected. Subsequently there are no chances that ignition coils, ignition breakers, or ignition wires and distributors go bad. This is the reason why diesel engines start easily no matter whether it is wet and rainy.

Is a diesel engine perfect for you? Will it work efficiently? All this is something which you should decide based on your driving habits, needs and budget. If you are interested then you can get the diesel engines, auto diesel engines, diesel car engine, diesel engine motors, diesel engine cars and spares or parts to be fitted in the automobile online from stores like www.automotix.net.