answersLogoWhite

0


Best Answer

it gets hot, and ignites the diesel fuel that is injected by the fuel injectors.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: When air in the cylinder of a diesel engine is compressed it?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How is the engine ignited?

A petrol engine is ignited by a spark plug, and a diesel engine is ignited by the heat produced from the air/ fuel mixture being compressed in the cylinder


Why not diesel engine is spark ignited?

A gasoline injects fuel into the cylinder as it is filled with air, compresses it, then ignites the spark plug to trigger the power stroke. In a diesel engine air is compressed up to 3 times more causing a much higher cylinder temp. Once the air in the cylinder is hot diesel fuel is injected directly into the cylinder and is ignited by the high temperature.


What is the difference between diesel fuel and diesel?

Diesel is a type of internal combustion engine wherein the fuel is ignited solely by heat produced by rapid compression of the air in the cylinder. Not by an electrical spark as in a gasoline engine. As the cyl air is compressed the air becomes heated. Fuel is injected into the hot cylinder and is ignited by the heat alone


Diesel engines parts and their function?

engine block, it's function is to carry the engine or where the cylinder head set, piston, it;s function is to compressed the air and fuel.


How does diesel engine work?

The diesel fuel, along with fresh air, is put under a great deal of pressure over the piston under the cylinder head. This causes the mixture of fuiel and air to explode and push the piston down. Other then that the operation between a diesel and petrol engine are about the same.Another answerA diesel engine works like a regular gas or petrol engine that uses injectors, except that a diesel engine uses only very high compression to cause the diesel fuel/air mixture to heat up so much that it explodes. Some diesels also have glow plugs which help the diesel fuel/air mixture ignite while the engine is cold.A gasoline engine does not use such very high compression to ignite the fuel/air mixture. It uses a spark plug.A diesel engine is very similar to a gasoline engine except for one main reason. A 4-stroke gasoline engine first intakes a mixture of air and fuel into the cylinder, compressed by a piston, and then this compressed mixture is ignited by a spark plug which creates a small electrical arch. A diesel engine first intakes just air into the cylinder and is compressed, afterwards the fuel is injected into the compressed air, the heat from the compression of the air ignites the mixture without the use of a spark plug.


What does a diesel engine use to ignite the fuel with since it doesn't use a spark plug?

The fuel/air mixture in the cylinder is compressed to the point where it gets hot enough to self ignite.The fuel/air mixture in the cylinder is compressed to the point where it gets hot enough to self ignite.


How does a diesel engine work?

The diesel fuel, along with fresh air, is put under a great deal of pressure over the piston under the cylinder head. This causes the mixture of fuiel and air to explode and push the piston down. Other then that the operation between a diesel and petrol engine are about the same.Another answerA diesel engine works like a regular gas or petrol engine that uses injectors, except that a diesel engine uses only very high compression to cause the diesel fuel/air mixture to heat up so much that it explodes. Some diesels also have glow plugs which help the diesel fuel/air mixture ignite while the engine is cold.A gasoline engine does not use such very high compression to ignite the fuel/air mixture. It uses a spark plug.A diesel engine is very similar to a gasoline engine except for one main reason. A 4-stroke gasoline engine first intakes a mixture of air and fuel into the cylinder, compressed by a piston, and then this compressed mixture is ignited by a spark plug which creates a small electrical arch. A diesel engine first intakes just air into the cylinder and is compressed, afterwards the fuel is injected into the compressed air, the heat from the compression of the air ignites the mixture without the use of a spark plug.


What causes a diesel to idle?

Diesels run on compressed fuel and air. An injector pump sprays fuel into the cylinder and mixes it with the air. When the piston rises to the top of the cylinder it compresses the fuel / air mixture and causes the mixture to ignite powering the engine. The speed of the engine is controled by the throttle plate which controls the amount of air entering the engine as well as the metering valve on the diesel pump which controls the amount of fuel that is sprayed into the cylinder.


How a diesel engine work?

The diesel fuel, along with fresh air, is put under a great deal of pressure over the piston under the cylinder head. This causes the mixture of fuiel and air to explode and push the piston down. Other then that the operation between a diesel and petrol engine are about the same.Another answerA diesel engine works like a regular gas or petrol engine that uses injectors, except that a diesel engine uses only very high compression to cause the diesel fuel/air mixture to heat up so much that it explodes. Some diesels also have glow plugs which help the diesel fuel/air mixture ignite while the engine is cold.A gasoline engine does not use such very high compression to ignite the fuel/air mixture. It uses a spark plug.A diesel engine is very similar to a gasoline engine except for one main reason. A 4-stroke gasoline engine first intakes a mixture of air and fuel into the cylinder, compressed by a piston, and then this compressed mixture is ignited by a spark plug which creates a small electrical arch. A diesel engine first intakes just air into the cylinder and is compressed, afterwards the fuel is injected into the compressed air, the heat from the compression of the air ignites the mixture without the use of a spark plug.


What happens in the upstroke of the piston in the crankcase in a four stoke engine?

On compression the air is compressed, and on exhaust it is forced out of the cylinder.On compression the air is compressed, and on exhaust it is forced out of the cylinder.


What is the difference between a diesel engine and a petrol engine ignition of mixture?

petrol engine - Fuel and air mixtures together and compressed in engine. These mixtures ignited by Spark plug Diesel Engine - Air only compressed at high pressure and Temperature. Fuel injected at high temp so that the ignition takes place


How much air in a cylinder?

Depends on the size of the cylinder, if the air is compressed or not and if it is compressed, to how much psi.