Carburetor engine: components and characteristics

Petrol engine is one of the types of engines with independent ignition, and external formation of mixtures.

In this mechanism in its cylinder is supplied ready fuel-air mixture, which is usually performed in the carb. It can be prepared in the gas-air mixer. One more option: it is formed during the injection of fuel that is sprayed by the injector.

Regardless, how is the mix and how much per operating cycle cycles, petrol engine performs its work is always the same. The fuel mixture that is compressed in the combustion chamber, ignited at any moment by using the ignition system (most commonly the electrical discharge system). Can also be used the ignition from glow tube, but it is basically a small and inexpensive engines (example – a model airplane). Laser and plasma ignition at the moment is still being developed.

It should be noted that a carbureted engine, or rather his work depends on how much of its operating cycle cycles. Therefore, there engines are "Otto" - they have this series includes four half-turn of the crankshaft, and it consists of four strokes and two-stroke – their cycle includes two half-turn of the crankshaft. This type, it is worth noting, because of its simple design became widespread as the engine for the different units and motorcycles.

Carbureted engine can be aspirated. His intake of fuel or air is due to the vacuum in the cylinder. In addition, this process is carried out under pressure, which creates a special compressor.

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It Should be noted that the carburetor of the internal combustion engine takes almost any fuel. Once even used his role to alcohol. As the fuel fluid, you can use naptha, propane-butane or gasoline, coal gas and alcohol.

As is equipped with a carburetor engine? Its main part – with removable cylinder head. Inside it houses the piston, and on it in its designated grooves are piston rings. They don't give the gas the opportunity to break down. And they keep oil in that it did not get up.

With the help of connecting rod and thumb the piston connects to the crank of the crankshaft, and that, in turn, rotates in bearings that are installed in the engine crankcase. Into the cylinder through the inlet valve receives the mixture of gasoline with air, through the exhaust there are exhaust gases. And yet, we cannot ignore the threaded hole in cylinder head. It is screwed the spark plug. It is an electric spark that jumps between the electrodes ignites the fuel mixture.

Despite the fact that the design of this mechanism is very simple, it is not so easy to fix, if you have a problem. So you will need to carry out a process such as diagnosis of gasoline engine.