Where is the carburettor ?
through the carburetor to the cylinders is supplied with fuel air mixture.From this we can conclude that the carburetor is located between the gasoline pump and cylinder block.Where exactly - it depends on the brand of car.For example, in the VAZ-2106 carburetor air filter is located under the right side of the cylinder block, as seen in the course of driving.Newer models typically use the injector instead of the carburetor.
Where is the carburetor in the engine
internal combustion engine is supplied with energy by burning strictly metered doses of fuel into the cylinders.In four-stroke engines to four cylinders ignition of fuel occurs at a time.Oxygen necessary for combustion, therefore the cylinders are not fed fuel is clean, and its mixture with air that is formed in the carburetor.
The cylinder block portions each mixture ignition should occur at regular intervals, and in the moment when the cylinder piston is in its lower position.If these conditions are not met:
- engine power drops,
- engine starts to run unevenly,
- car stalls or roars,
- increases the amount of carbon dioxide in the exhaust.
moment of ignition of the mixture depends on the ratio of fuel and air in the cylinder, which is formed in the carburetor.By adjusting the carburetor achieve the desired ratio experimentally.Of course, the carburetor is adjusted at the factory, but the ignition time also depends on the state of the atmosphere: temperature, humidity, altitude.Therefore, from time to time we have to deal with all the regulation, which is necessary to understand the principle of operation of the carburettor.
How does a carburetor
air flow to the carburetor passes through the air filter, the amount of air is regulated by the gas pedal.Each time you press the gas to the carburetor gets more air.
fuel to the carburetor passes through one, two or at most three special nests.Each pocket is responsible for his power: low speed (idle), great speed and, in rare cases, average.
The nests are inserted needle, having a form of small screws with pointed ends.Needles are inserted into sockets loosely: slot between the walls and the needle has a clearance, and through which fuel enters the carburetor.The further the needle inserted into the slot, the gap remains less and less fuel is supplied inside.Adjusting the carburettor is to select the correct gap on the respective speeds.
Inside the carburetor housing is the high speed needle.It regulates the flow of air at all engine speeds, it affects the overall performance of the engine, although mainly from its position depends on the fuel mix to high speed.
Next comes in needle low speed or idle.It is usually disposed within the carburetor, and it regulates the amount of fuel supplied after the first needle.Without it, the low speed fuel mixture will be too much.With increasing speed the needle is removed from the socket, and is supplied in cylinders as fuel, measured out as the first needle.