Requirements for Aircraft fuel filter element

Requirements for Aircraft fuel filter element

Article content is reproduced from ZHEHAN FILTER, writer：Snow

  

What I was preparing was the latest developments in our new products and the amazing filtration efficiency, but our R&D manager stopped me. He believes that products that have not undergone extensive experimentation cannot be promoted in the market.

Finally, I compromised. I think he is right.

We are producing a batch of filter elements for airplanes. Today I will briefly explain the special requirements of filter elements for airplane engines.

Purification requirements for the fuel system of aircraft engine are basically equivalent to that of general ground walking machine engine.

Filtration accuracy requirement

β10 = 20

I forgot whether I explained the meaning of beta to you. I’ll explain it again.

β10 = 20. It represents 95% of the ability to remove 10-micron particles. There is no point in not having a beta value but filtering accuracy.

Fuel purification is mainly to protect nozzles, as long as the 10-micron (β10 = 20) particles can be removed effectively, the fuel system can work properly.

What I have written above is a theoretical requirement. In fact, airplanes fly at a height of 10,000 meters, not work on the ground.

What are the characteristics of high altitude?

low temperature

High-Frequency Vibration of Engine

Large volume flow

These characteristics put forward special requirements for aircraft fuel engine. (Introduction of Boeing Aircraft Fuel Filter as a Reference)

The filter element absorbs less water.

The low temperature in high air to prevent freezing at low temperature

It can filter ice flowers.

We can’t avoid ice from water in oil.

The long life of the filter element.

Large flow

Small differential pressure