Importance

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Abstract

Fuel in aircrafts is commonly stored in a pair of tanks, identified as right and left tanks, and a fuel selector valve is provided by the present invention to selectively feed fuel to the aircraft engine from either tank, and alternatively from both tanks simultaneously. When the fuel selector valve is in a fuel feed position, a white light is illuminated, as fuel flows to the engine, a green light is also illuminated. A timer is in electrical circuit with the tanks and is activated and manually set to a predetermined time setting to sound an alarm just prior to depletion of fuel in the tank in use to warn the operator to switch to the other tank. If for any reason, a tank runs dry while in use or fuel stops flowing or decreases in volume the green light will go out and a red light will be energized along with an audible warning, such as the sound of a buzzer, to enable the operator to switch to a reserve tank commonly provided with approximately ten minutes of fuel for the engine.

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First Claim