FLYING VEHICLE FUEL SYSTEM Russian patent published in 1997 - IPC

FIELD: aircraft manufacture; fuel tank filling and draining systems. SUBSTANCE: fuel system includes fuel tank, service compartment and booster pumps; one booster pump is located in negative load factor compartment. Pumps are connected to fuel boosting pipe line which is connected in its turn with active fuel supply pipe line fitted with sediment drain valve mounted at lower point of bend of active fuel supply pipe line. This valve is connected with service compartment by means of other pipe line. Active fuel supply pipe line is connected with active fuel mains of jet pumps which are connected in their turn with service compartment by means of antisiphoning pipe line. Point of connection of active fuel mains and point of inlet of antisiphoning pipe line in service compartment are located above level of negative load factor compartment. EFFECT: enhanced reliability. 1 dwg