Fuel systems for avgas with broad volatility

Details Fuel systems for avgas with broad volatility Fuel systems for avgas with broad volatility

1996-09-17

1998-06-09

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

Fuel flow regulation between the pump and the charge-forming...

123518, F02M 3704

Patent

active

057620504

ABSTRACT:
A fuel injection type aircraft fuel system for piston aircraft engines including a gravity flow fuel tank in the aircraft; a pressurized fuel metering unit on the aircraft engine; a fuel line connecting the metering unit to the fuel tank; an engine driven pump in said fuel line positioned in the engine compartment; a vapor separator in said fuel line between the engine driven pump and the fuel metering unit; a first vapor vent line connecting the vapor separator to the fuel tank; a fuel reservoir in said fuel line between the fuel tank and the engine driven pump; a submerged auxiliary pump in said reservoir to charge said system; an auxiliary pump bypass valve connected and parallel to said auxiliary pump; and a second vapor vent line connecting the reservoir to the fuel tank.

REFERENCES:
patent: 4844704 (1989-07-01), Jiro
patent: 5103793 (1992-04-01), Riese et al.
patent: 5368001 (1994-11-01), Roche
patent: 5389245 (1995-02-01), Jaeger et al.
patent: 5579740 (1996-12-01), Cotton et al.

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