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DOHC 4 cylinder engine Video - Part 1

Diesel Engine Principles for beginners

Principles of Diesel Engines are simple enough for the experienced mechanic, but what Is regular ordinary people who have never taken the time to learn more about a diesel engine and how it works?

Let me explain in simple terms the basic principles of a diesel engine.

What is the difference between a gasoline engine and a diesel engine?

The first thing to Knowledge is a gasoline engine and diesel engine are totally different. A gasoline engine is built much lighter than heavier diesel engine built. The engine Gas works with a mixture of air and fuel combined with a high energy spark that is programmed to start within of each engine cylinder at the precise moment the creation of power and torque force that leads your vehicle.

A diesel engine uses compression High intake air is compressed into a small space inside each cylinder causing extreme heat. This is known as heat compression that ignites a cloud of very fine high pressure diesel fuel injected into each cylinder at the right time.

So now we know an engine petrol needs a spark of high energy for work, while a diesel uses the heat of compression. The first four-stroke engine in all four tracks long, or four cycles, the two terms mean the same thing.

Thus, the four-stroke diesel engine operates. The four movements are intake, compression, explosion and exhaust systems.

The pistons, valves and injectors to work together in each cylinder in a sequence fixed over and over.

Intake stroke. The intake valves open in The Cylinder Head allowing air to enter each cylinder when the piston moves down. The air supply pressure is made possible by the turbocharger, which forces air into the intake system air gives the diesel engine to follow with fuel injection instant.

Compression stroke. When the piston begins to move until the shut-off valve which traps the intake air of the cylinder and allows compression to take place. The heat of compression is achieved when the piston reaches the top of the cylinder, diesel fuel injected into the cylinder at the right time.

The race. After the injection takes place an explosion occurs into the cylinder through a combination heating and diesel fuel spray. This causes the piston to be forced down that produces the torque and power required for a conventional diesel engine.

Movement extractor. After the race, the piston moves back, while the exhaust valves open allowing gases to escape from fire before the atmosphere at the exhaust system.

As mentioned before each cylinder goes through this exact sequence included the firing order on a set. In example, a 6-cylinder diesel engine has a shot 1 5 3 6 2 4 This is the order that each cylinder goes, according to four shots over.

This sequence was designed to allow the diesel engine to operate in smoothly without imbalance.

Here are some anecdotes efficiency of diesel engines with high diesel engines. Fuel through the injector at a rate nearly 1500 km / h, as fast as a jet at full speed. Fuel injected into the combustion chamber in less than 1.5 milliseconds, the time it takes for a camera flash goes off.

The minimum amount of fuel injected into a diesel engine is a millimeter cube, roughly the same volume as the head of a pin. Volkswagen has developed a diesel car than a liter to 100 liters of 0.89 miles Fuel, 60 miles in less than a quarter of fuel.

There is much to learn about diesel engines and a lot of information online. If you have never thought of buying a vehicle with a diesel engine, you have my blessing.

The additional cost will be to your advantage, so I recommend you learn more about diesel engines before deciding which to choose.

I hope you found this information useful in engines diesel.

About the Author

John Whelan is a certified Heavy Duty Mechanic with 30 years experience and enjoys sharing tips and resources on school buses and other related mechanical systems.
Check out his Website for free tips, photos and information.