Diesel engine

Diesel Engine

A Diesel Engine (pronounced: /ˈdiːzəl ˈɛndʒɪn/) is a type of Internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber. This is in contrast to Spark-ignition engines such as a Petrol engine or Gas engine, which uses a spark plug to ignite an air-fuel mixture.

Etymology

The Diesel Engine is named after its inventor, Rudolf Diesel, a German engineer who patented the idea in 1892.

Operation

The operation of a Diesel Engine involves four key stages: intake, compression, combustion, and exhaust. During the intake stage, air is drawn into the engine. The air is then compressed, raising its temperature. Fuel is then injected into the combustion chamber, where it ignites due to the high temperature of the air. The resulting explosion forces the piston down, producing power. Finally, the exhaust gases are expelled from the engine.

Types of Diesel Engines

There are two main types of Diesel Engines: Two-stroke and Four-stroke. Two-stroke engines complete a power cycle in only one crankshaft revolution and with two strokes, or up and down movements, of the piston. Four-stroke engines, on the other hand, complete the same cycle in two crankshaft revolutions and with four piston strokes.

Applications

Diesel Engines are used in a wide variety of applications, including in automobiles, locomotives, marine vessels, and electric generators.

Related Terms

• Compression ratio
• Cylinder
• Fuel injection
• Ignition system
• Piston
• Turbocharger

External links

• Medical encyclopedia article on Diesel engine
• Wikipedia's article - Diesel engine

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