FIELD: aircraft engineering.
SUBSTANCE: fuel system comprises fuel tank 1 with filler neck 2, drain system and engine feed pump 6 furnished with anti-dust filter 5 arranged at drain pipeline outlet to atmosphere 3. Aforesaid two-stage filter is composed of swirl generator 7 for air course cleaning and water separation and gauze filter 10 for air fine cleaning mounted at swirl generator cylindrical case outlet 8. Note here that swirl generator cylindrical case outlet 8 is covered by scroll channel 12 with open end for eject course cleaning products into atmosphere. Scroll channel outer pipe inclined edge 11 opposes incident flow in aircraft flight.
EFFECT: higher reliability of protection against ingress of dust and other particles in fuel.
2 cl, 5 dwg
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