METHOD OF EQUALISING FUEL CAPACITY IN AIRCRAFT WING TANKS IN OPERATION ON SURFACE Russian patent published in 2012 - IPC B64C17/10 

FIELD: transport.

SUBSTANCE: invention relates to aircraft engineering, particularly, to method of equalising fuel capacity in aircraft wing tanks. Proposed method consists in that equalising is performed by pumping fuel from aircraft central tank into wing tank with smaller fuel capacity. Note here that with no fuel in central fuel tank, fuel is pumped over from LH wing tank into RH wing tank using fuel priming and centralised drain line of aircraft fuel system, cross feed valve, RH wing tank priming valve and pump to feed fuel to LH engine. Pump to feed fuel to LH engine in LH wing tank is actuated along with centralised fuel drain valve by communicating line of feeding fuel to LH engine with fuel priming and centralised drain line. Then, with closed LH valve, valve to prime RH wing tank is moved to OPEN position to pump fuel over from LH to HT wing tank unless misbalance signal disappears. With no fuel in central fuel tank, fuel is pumped over from RH wing tank into LH wing tank in a similar way.

EFFECT: ruling out unbalance between left and right wing fuel tanks.

4 cl, 1 dwg