The Mass Air Flow Meter – Measuring The Correct Amount Of Fuel For Your Engine.

A combustible engine is a symphony of many parts. If one part does not work correctly, there is a good chance that the whole engine will stop working. In the case of the fuel that powers an engine, a mass air flow meter is a vital component of the system that ensures the engine runs smoothly.

The fuel or gasoline in a combustion engine is ignited and the force that it creates pushes the pistons in the engine that turn the crankshaft. This force is directed to the wheels and the car or other machine moves. The important factor in all this is how does the engine know how much fuel to insert into the piston chamber or turbines in the first place ?

The engine is given the right amount of fuel because it has a mass air flow meter in place. A mass air flow meter measures the amount of air in the combustion chamber. Air expands and contracts at various temperatures, so the mass air flow meter will gauge how much air is in the chamber, and at what temperature, and will thus deliver just the right amount of fuel to do the job.

Thus without a mass air flow meter the wrong quantity of fuel would be delivered to the chambers leading to problems in the way the engine fired. It is a vital device that keeps the engine running. The problem comes when the mass air flow meters malfunction, which can happen from time to time.

Malfunctioning Flow Meters

For an older engine, the air flow meter is likely to be subjected to extreme forces of temperature and pressure. Consequently it can wear out or stop working. When this happens, the air flow is no longer calculated accurately. What you're left with is either too much fuel, or too little, entering the combustion chamber.

If too much fuel enters the chamber, the fuel may not ignite. Fuel is mainly ignited by the fumes. Fuel is still a liquid, which won't burn as efficiently as a mist, which is how the mass air flow meters calculate the amount of fuel to enter the chambers.

If too little fuel is pushed into the chamber the same effect can happen; there will be a little sputter and nothing will happen.

With this said, mass air flow meters should last for a long time, however if you have problems with your fuel injection system, the mass air flow meter may be one of the components that needs to be checked.

Larger Scale Uses

Mass air flow meters are fine when using small amounts of fuel, as happens in a car, motorbike, scooter or even a lawn mower. However, when using volatile gases and liquids on a larger scale, at an industrial plant like a nuclear power station other devices are needed.

So a facility like a nuclear plant will use a thermal mass flow meter. Thermal mass flow meters specialize in very high temperatures which only occur with certain gases and fuels and at really higher tolerances.

When you're working with fuel, gas, or any other combustible substance, it's important to know exactly how much you're using, and you want to make sure the measurements are very accurate. That makes a mass air flow meter, or a thermal mass flow meter, extremely useful when working with such substances.