Fuel is piped through fuel lines to a fuel control valve (usually known as the fuel selector). They pump fuel under pressure through a shutoff valve for each engine . A manifold or connecting tubing typically allows any tank to supply any engine through the use of crossfeed valves.
What is the fuel selector valve used for?
Fuel is piped through fuel lines to a fuel control valve (usually known as the fuel selector). This valve serves several functions. The first function is to act as a fuel shut-off valve. This is required to provide the crew with a means to prevent fuel reaching the engine in case of an engine fire .
How does a fuel tank selector valve work?
Fuel is piped through fuel lines to a fuel control valve (usually known as the fuel selector). They pump fuel under pressure through a shutoff valve for each engine . A manifold or connecting tubing typically allows any tank to supply any engine through the use of crossfeed valves.
Where is the fuel selector valve?
The selector valve must be located between the Fuel Pump and the Fuel Tanks .
What does a fuel tank breather valve do?
The Breather Valve is a protection device mounted on a nozzle opening on the top of a fixed roof atmospheric storage tank. Its primary purpose is to protect the tank against rupturing or imploding .
How does a selector valve work?
A selector valve (splitter) is used in hydraulic systems to direct fluid flow . The diverting valve directs the fluid under pressure to the desired operating port of the actuator. At the same time, it directs the return fluid from the opposite port of the actuator to the tank.
How does aircraft fuel system work?
Small piston-engine powered aircraft often have a single tank fuel system. On newer aircraft, two fuel tanks, with one in each wing, are more common. ... The fuel is piped from the tanks through fuel lines to a fuel control valve which is commonly referred to as the fuel selector valve.
What is fuel valve?
A device which receives pressurized fuel as a liquid and sprays it into an engine cylinder as a fine mist. It consists of a nozzle and nozzle holder or a body. ... The fuel is sprayed into the engine cylinder through it.
What happens to excess fuel discharged by the engine-driven fuel pump?
Where does an engine-driven fuel pump direct excess fuel from its pressure relief valve? Back to the inlet side of the pump. ... The fuel becomes hot enough that it boils . Vapors are released from the liquid fuel, and these vapors block the fuel lines so the liquid fuel cannot flow into the engine.
Why is fuel system important in aircraft?
The fuel system is designed to provide an uninterrupted flow of clean fuel from the fuel tanks to the engine . Delivering fuel to the engine under all conditions of engine power, altitude, attitude, and during all flight maneuvers requires the appropriate aviation fuel system.
How do dual fuel tanks work?
The dual fuel tanks on a big rig “work” by having two pipes (one for supply to the engine and the other for return from the fuel rail) between the tanks . The truck draws fuel from both tanks at the same time.
How do you connect two boat gas tanks together?
Two suction lines from the top of each tank, brought together at a 4-way valve, (left, right, both and none) the output of the valve connected to the fuel pump. Once you have drawn fuel from both tanks, turn the valve to “both”, switch off the engine and go home.
Where is the fuel quantity gauge usually located?
The mechanical-type fuel quantity gauge is usually located in the tank and is known as a direct reading gauge. It has an indicator connected to a float resting on the surface of the fuel. As the fuel level changes, the float mechanically operates the indicator, thus showing the level of fuel in the tank.
Do you need a fuel tank vent valve?
In order to breathe, your tank must have a vent somewhere that will relieve both vacuum and pressure . ... Gasoline expands in volume as it warms up and shrinks in volume as it cools down. The fuel level of your tank changes throughout the day, even if you are not driving it.
Where is the fuel tank breather?
The Breather hose is top of the tank, goes vertical then back down vertical .
What happens if a fuel tank is not vented?
If these polyethylene tanks do not have a tank vent and are, therefore, not vented properly, they too will collapse . This does not only happen in transfer tank scenarios. There are many applications in which actual bulk storage tanks have collapsed due to the creation of a vacuum in the plumbing system.
