In this short video, we can get a picture of how a four-stroke engine works. In the 3D view we can clearly see all the basic parts of the engine and their movement.
The video shows the movement of the pistons, which move the crankshaft via the connecting rod, as well as the camshaft (below the crankshaft) which controls the opening of the intake and exhaust valves.
Although the Boxer engine is shown here, the operation of other engines is on the same principle – by burning in the cylinder, the thermal energy is converted into mechanical energy. Interesting topic to know more about auto oglasi.
If we want to explain this process in a little more detail, we need to describe what happens in one cylinder during four strokes:
- Intake of air (mixture) into the cylinder;
- Compression of air (mixture) to the point of ignition;
- Ignition of the mixture and explosion; expansion of combustion products. The whole cycle in the engine exists because of this stroke, because only in it is the necessary force obtained on the piston that drives the crankshaft;
- Ejection of combustion products.
For these four strokes the crankshaft rotates twice.
Since the power occurs only in the stroke of the explosion (combustion), it means that the other strokes occur by inertia (which is why there are flywheels on the crankshaft).
Most engines have more than one cylinder in order to get as smooth engine operation as possible and even power output. Most often, car engines have four cylinders. Recently, we have the appearance of two- or three-cylinder engines, but they can hardly ensure uniform operation of the engine as a four- or more-cylinder engine.
We would like to take this opportunity to thank B.Sc. ing. Milivoje Savić, who helped us and explained this process in the simplest way.
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