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There are generally two types of fuel pumps in aircraft. Low pressure pumps which bring fuel from the tank to the engine and operate pretty much like any other fuel pump. These are usually located in a sump within the tank and are designed so as not to run dry. The other type is a high pressure pump which is usually located within the engine. These pumps take the low pressure fuel from the tank and increase fuel pressure dramatically for injection into the burner cans.
Commercial airliners have fuel pumps that can be either mounted inside the fuel tanks or externally. Basically they consist of a centrifugal impeller powered by an electric motor.
The Fuel Boost Pump used on Douglas aircraft are a centrifugal pump that is powered by a 3-phase AC motor. The pumps are designed to operate for extended periods in a dry tank after running wet. Non-resettable thermal protectors for each pump motor circuit phase prevent excessive pump motor temperatures. The outlet check valve are flapper-type valves that opens under pressure from the pump and will close if there is reverse pressure in the fuel supply line.
What else can I help you with?
If fuel pump relay is bad will fuel pump still work?
If the relay is bad, then the fuel pump will not work.
When On aircraft equipped with fuel pumps when is the auxiliary electric driven pump used?
In the event engine-driven fuel pump fails.
1997 Pontiac transport Why wont your fuel pump work New fuel pump relay and power to the pump but it still does not work?
Bad fuel pump?
Can the car work if the fuel pump doesn't work?
NO....if Fuel pump doesnt sent fuel to engine...engine cannot combust...
Does the fuel pump work through a relay?
Yes, it is a fuel pump relay.
Where is the fuel pump fuse on 1994 BMW 525i and how can i test to see why my fuel pump won't work?
Where is the fuel pump fuse and relay on 1994 BMW 525i and how can I test to see why my fuel pump won't work
Will the fuel pump cause the fuel gauge to not work?
No.
Why wont the fuel pump work f-350 1996?
Blown fuse, defective fuel pump relay or the fuel pump has failed.
I have a 1987 Chevy v10 my fuel pump will not kick on i have took of the bed and tested the fuel pump and it does work i have replaces the fuel relay fuel pump and the fuel filter fuses are good?
i have also replaced the throttle body with the fuel injectors the i have tested the fuel rely and it does work
What can cause fuel pump in 2004 Chevy cavalier to not work?
Blown you'll pump fuse, defective fuel pump relay, fuel filter totally clogged, or fuel pump itself is defective.
What to do if you installed new fuel pump relay and fuel filter no fuel to the engine wont start?
Does the fuel pump work? Check that. yes.
Why doesn't fuel pump work on 1980 volvo 242?
Either the fuel pump itself is defective, the fuse is blown, or the fuel pump relay is defective.
