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A compression ignition engine works with Pistons and Valve openings.

There is an intake valve, with lets the fuel and air into the cylinder, and the exhaust valve which allows for the escape of the combustion.

The engine starter, supposedly started by a battery, gives the piston an Initial movement away from the valves, which bring the fuel and air into the cylinder, then pushes the piston back up, with this mixture of fuel, which is at a certain mixture which is then ignited by a spark plug. The explosion throws the piston back down which releases the exhaust valve allowing for the exhaust to exit. Once the exhaust leaves the piston moves back up , probably by the flywheel... and is brought down again which allows another mixture of fuel. This allows the engine to begin on its own timing without the need of a starter.

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15y ago
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11y ago

The engine compresses the diesel fuel to the point of where the fuel combusts.

Think of it like the big bang on a smaller scale; it compresses to the point of explosion.

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Q: Why diesel engine is called compression ignition engine?
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Related questions

What is another name for a diesel engine?

Compression ignition engine.


What is a Compressor Ignition Internal Combustion Engine?

I think you have a typographical error in your question. The question I believe is "What is a compression ignition engine?" The answer is:- A diesel engine is a compression ignition engine.


What is spark ignition engine?

A 'spark ignition ' engine is your regular gasoline engine as opposed to a diesel, which is a 'compression ignition' engine


What does the word diesel come from?

Rudolph Diesel, 1858-1913. Invented the compression ignition engine.


Why petrol engine is called spark ignition engine?

Because the fuel is ignited by a spark plug rather than by compression as is the case with a diesel.


What type of engine uses compression ignition as it has no spark plugs?

a diesel engine uses compression and has no need of spark plugs


What is meant by 3.5 diesel engine?

It means the engine cubic capacity is 3.5 litres and it is a compression ignition engine that runs on diesel fuel.


Who was the German engineer who invented the compression ignition engine in 1893?

Rudolf diesel


How does a diesel engine start?

A diesel engine has no spark plugs. Because the air is so compressed and hot at the top of the stroke, the fuel ignites right away when it is injected. This is why a diesel engine is called a "Compression Ignition" engine and gasoline engines are called "Spark Ignition" engine. This also means that there are no ignition breakers, ignition coils, distributors and ignition wires to go bad. This allows diesel engines to start no matter if it is dry or rainy and wet. The immense compression creates the heat that ignites the fuel. On cold days a glow plug may be necessary to heat the combustion chamber enough to start the engine.


Why do diesel vehicles need to be kept running?

A diesel vehicles does not need to be running. A diesel ignition in a Diesel engine comes from compression and not spark.


What is spark ignition or Diesel?

spark ignition engine is also known as petrol engine. but in diesel engines the fuel is burnt due to the high compression of air.so there is no need of spark plug


Why diesel engine given name diesel?

This comes after the name of Rudolf Diesel who succeeded to build his well-known high-compression prototype engine in 1897. Rudolf Diesel was credited with this innovation.The diesel engine (also known as a compression-ignition engine) is an internal combustion engine that uses the heat of compression to initiate ignition and burn the fuel that has been injected into the combustion chamber. This contrasts with spark-ignition engines such as a petrol engine (gasoline engine) or gas engine (using a gaseous fuel as opposed to gasoline), which use a spark plug to ignite an air-fuel mixture.